Molar Mass

Molar Mass Molar Mass Chemistry deals with the compositions of atoms and molecules. There are innumerable number of reactions where the atoms and molecules react with each other and form products. Molar mass of molecules and compounds play a very important role in different stoichiometric calculations. Every atoms or compound have both physical and chemical properties. Molar mass is one the physical property of the given substance. It can also be referred as the mass of the given molecule or compound. Difference between amu (Atomic mass Unit) and grams/mol. The Atomic mass unit or the amu is the units that is used for measuring the mass of each atom. Periodic table is often referred to find mass of the atoms. In the periodic table the mass of each atom is given in terms of amu. This atomic mass unit of an individual atom is taken to find the molar mass of a compound or a molecule. The unit of molar mass is however grams/mol as its the combined mass of the atoms. Shown below are examples related to the calculation of the molar mass. The Molar mass of one mole of CuSO4. Given is one mole of Copper Sulfate CusSO4. Follow the steps below for finding the Molar mass: One mole of CuSO4 consists of 1 Copper atom, 1 Sulphur atom and 4 atoms of oxygen. Refer to the periodic table get the atomic mass number of Copper (Cu), Sulfur (S) and Oxygen (O) atoms. For finding the molar mass of CuSO4 add the masses of the atoms as shown below: Mass of CuSO4 = (Atomic mass of Copper) + (Atomic mass of Sulfur) + 4 (Atomic mass of Oxygen) The periodic table is always used to find the mass number of the given atoms. Cu has a mass number of 63.456 amu, Sulfur S has a mass number of 32.065 amu, and Oxygen has a molar mass of 15.9994 amu. Adding all the atomic mass units gives the following: Molar Mass = 1(63.456) + 1(32.065) + 4(15.9994) = 63.456 + 32.065 + 63.9976. = 159.6086 g/mol. The Molar mass of 1 moles of NH3. Given is 1 moles of NH3 which is also called as Ammonia. Steps for finding the Molar mass of Ammonia: One mole of NH3 consists of 1 Nitrogen atom, and 3 atoms of Hydrogen. Refer to the periodic table get the atomic mass number of Nitrogen (N), Hydrogen (H). For finding the molar mass of NH3 add the masses of the atoms as shown below: Mass of NH3 = (Atomic mass of Hydrogen) + 3 (Atomic mass of Hydrogen) The periodic table is always used obtain the atomic mass number of the given atoms. N has a mass number of 14.0067 amu, Hydrogen has a mass number of 1.00974 amu. Molar Mass = [1(14.0067) + 3(1.00974)] g/mol = [14.0067 + 3.02922] g/mol = 17.03592 g/mol. Rounding the answer to two decimal places. Follow the steps below: Relation between Molar Mass and Number of Moles: The molar mass of a substance is independent of the number of moles. This is because molar mass of the substance weighs according to the composition of its atoms. The total mass of the substance however increases with the increase in the number of moles. The Moles and Molar mass of a substance are connected by the formula stated below: The units for the mass of a substance is grams and the units for the moles is mol. This also implies that the units for the molar mass of a given substance is grams/mol. Shown below are some solved examples to find the number of moles for different substances. 1) Find the molar mass of a 3 mole of an element weighing 60 grams. Mass of the substance given = 60 grams. Number of moles = 3 moles. Using the formula: Molar mass = 60 grams/3 mol = 20 gm/mol. 2) In a lab experiment the chemist used 9 moles of Fe2O3. Find mass of Iron Oxide consumed if the mass was totally consumed. For calculating the mass of Iron Oxide Fe2O3, its molar mass is required. One mole of Fe2O3 consists of 2 atoms of Iron and three atoms of Oxygen. Refer to the periodic table to obtain the atomic mass unit for Iron and Oxygen. The atomic mass unit of Iron is 55.845 amu and the atomic mass unit of Oxygen is 15.9994 amu. Adding the atomic mass units gives: Molar mass of Fe2O3 = 2 (55.845) + 3 (15.994) = 159.6882 g/mol = 159.69 g/mol (approximately.) Using the formula: Mass of Fe2O3 = 159.69 x 9 = 1437.21 grams. 3) Calculate how many number of moles of H2O molecules weight 36 grams. Given is the mass of H2O molecule = 36 grams. Now find the Molar mass of H2O in the following steps below: The H2O molecule has two Hydrogen atoms and one Oxygen atom. For finding the molar mass of one H2O molecule look for the atomic masses of Hydrogen and oxygen. Hydrogen atom weighs 1.00794 amu and Oxygen weighs 15.9994 amu. Molar Mass of H2O = [2(1.00794) + (15.9994)] g/mol = [2.01588 + 15.9994] g/mol = 18.01528 g/mol. = 18.0 (On approximation.) Use the Molar mass formula mentioned above for finding the number of Moles: Substituting the values gives: Moles = 36/18.0 = 2.0 moles.

For Academic Success, How Important is Online Tutoring

For Academic Success, How Important is Online Tutoring 0SHARESShare Finding out personal tutor who meets your problems in daily homework, school assignments, weekend projects and preparing for unit tests and competitive exams is very difficult. Personal tutors charge big amount, but they may not be available on needful basis as and when required. It is tough to get extra help finding through your exam with flying colors. Online tutoring is a premier service that gives a platform for both student and tutor to interact with one another online all during the day and night in the comfort of their own homes. Here you go how online personal tutoring is important for your academic success: It offers help in all the major subjects from all across through K-12 education and college education It helps take your daily tutoring classes just like the classes taken in your school Online tutor help you to complete your daily school homework, assignments, weekend projects and a lot more It helps Reading and Writing Essay help, Math problem solving, Science experiments, English Grammar It helps prepare you for surprise test, unit test and final examination at the end of the academic year It offers all other online educational resources that can help you get better learning the subjects It offers access to library resources extending tutoring help for it Tutors not only make you learn   the concepts but prepare you to deal with subject with smart tips and tricks The tutoring sessions are recorded can be accessed as ready reckon and revisions at the time of test preparation It helps you to learn time management while preparing for competitive exams Tutoring online websites use a fun-filled learning tools and techniques which give you a relaxed and stress free education. Online tutoring saves a lot of time and efforts by giving right help at the right time. You can utilize that extra time in learning new things Online learning is cost effective. Whatever you save in your pocket can be spent in other curricular activities that help your overall development. [starbox id=admin]

Homework help sites for college students is available at Tutor Pace

Homework help sites for college students is available at Tutor Pace When a child is born, parents keep high hopes with the future of the child. They make it a point to provide the child with all the amenities that can be afforded by them. The prime concern of a parent is to provide them with good education that will help them to build a bright future for themselves easily. A reputed and a proper school is the basic requirement of a child. It helps a child to think bigger and better and also helps in building up a mental framework that is much more important than any academic institution. When a child will have a good schooling background then naturally the child will demand to have same kind of college also for themselves for further studies and this can be possible only when they crack the SAT examination. It is a very tough examination and thus it helps in making the admission of a student into any of the reputed college in a very easy way or it may be said that this is the only way through which you can get admission into a good college. How is college life all about? Now leaving all these behind let us talk about how a college life should be. For me a college life should be fun filled, friends, parties, pranks and so on. There would be no classes or no discipline. No class attendance should be there and thus students can play their own games anytime and anywhere. Such type of thinking is nurtured among many students. It would be nice if college would be only such a place where no education would be there. But unfortunately things do not turn up what we all want them to be. College life also has education as its base point. Without education it is not possible for any student to live ahead and further. But what happens when you are stuck somewhere during your college days. Then you have to get help from some tutor who will help you to get out from the trouble that has been formed. A good teacher is like a bright sun in those chilled winter days. It is very important to have a qualified teacher for you. The qualified teacher will help a child to know any subject better and that also in a much faster as well as easier way. Some unknown facts about online tutoring There are different types of ways through which you can learn more. Private tutors are there who are always willing to help a child with the different kind of approach that they want. But some parents are there who are not wiling to send their child in any private tutoring classes as they have a pre occupied mind that coaching classes can hamper the future of a child as different kind of students attend that and mixing up can bring their child’s grade down. With such a cause only there is one way that can help you to get most help without any cause of worry. Online tutoring is a new way through which children are taught. Online teachers are far more qualified than any other private tutor. There is no interview process of any private tutor and thus the private tutors are themselves their interviewer. But in the world of online tutors you will get help for various types of facilities and services that are very essential for a student in the present era. Every college is unable to provide its students with the maximum amount of educational guidance that is needed for a student and thus things change with the marks of a student. To increase the mark and to get good response from the teachers as well, you can hire or enroll your child at any online tutoring institute as well. Let us now introduce you with some great facilities of these online tutoring institutes that will help you to have an concrete opinion about any such institute. Know about some characteristics of online tutoring  Online tutoring has some smart teachers who will help you to get deeper into the subject and reveal each nook and corner of the subject. It will also help you to get a firm view that helps any student to know the subject well. All the teachers are efficient and they have full proficiency with the subject and this helps in making the subject easier for any student. For weak student they frame up a structure that will help the weak students to get deep into the subject and know the subject well.  The one-on-one service is one of the best services that any student can get. When you have a single teacher by your side for the different kind of help for you, it is certain that the confidence level of a child increases to a larger extent. Online teachers gave this unique facility through which a child can be carefree to know that they have someone to help them.  The availability of the tuition classes are available all round the clock and it is a great help for any student who are unable to manage their time. These types of help can help them to attend the classes anytime they want. When they can attend the classes anytime they want then they can be sure to succeed with the marks easily.  The other best feature an online tutoring facility can provide you is that you can save lot of time, energy and transportation expenses as you do not have to waste your time and energy to travel to any tuition classes and the transportation expenses that are required to reach there can also be saved. This way you can sit at your comfort zone and avail the facilities of a good class. Tutor Pace and its list of services This is one of the reputed institutes that have good teachers along with some affordable price services that can be easily availed by middle class people. Homework help sites for college students is one of the best service from TutorPace.  

Learning French 4 Contemporary French Singers You Need to Check Out

Learning French 4 Contemporary French Singers You Need to Check Out Suzy S. Can listening to music help you learn a new language? Try these tips from French tutor Sean C. to see how some new tunes can help you master French! Have you ever noticed how people who can speak French somehow become slightly more intriguing? and you secretly want to be one of those people? Do you feel like it will help you in life someday? If you already have the passion for it, you can learn French, and something as fun as listening to music can help! Just pick a French artist or even a playlist, get the lyrics and just keep listening to it. Listen to it when youre on hold with the insurance company; listen to it when youre stuck in traffic again, listen to it while you cook. Since its music, it can make a bad day good, and make a good day awesome! Now, you must be asking yourself, how can I possibly learn French by listening to music I dont even understand? Simple: the same way every human learns French- repetition. A French tutor can guide you to more effectively channel the lyrics that can potentially get stuck in your head. Personally, I recommend starting with Mylene Farmer- the music itself can range anywhere from EDM to euro-pop to easy listening. She is huge worldwide, her voice is unique and easy to understand, and lyrics are poetic, but reasonable. The best part: a simple Internet search will have lyrics to almost all of her immensely popular songs, and a good number of them will have English translations right there, so you can start to relate what she says, with how that reads, to what it means to you. If EDM isnt your cup of tea, I recommend Alizee. She has more of a pop feel, and is also popular enough that you should have no problem finding lyrics and translations. And then theres Judith. If Starbucks were predominantly a French phenomenon, Judith would be playing when you walk in- uplifting, yet subdued beats, and powerful, yet mellow vocals. Finally, check out Lara Fabian. Shes from Brussels, and speaks plenty of languages, among them English and French. She even has a few songs that she covers in both languages- though each song means something different in its respective language. The greatest thing about using music as a study aid is that even if you dont know the words, you can get to know the sounds. And if your tutor happens to know that same song, you can go through it together and help to connect on a more meaningful level- what better way to learn a language? If absolutely nothing else, should a coworker or friend happen to overhear you listening to French music, or mumbling the lyrics yourself, you just became that intriguing person! Where did you learn French?! they may ask. Oh, here and there. I sort of picked it up. Honestly, that little hypothetical interaction there would probably give you all the boost you need to go to your favorite online music vault (such as iTunes or YouTube) and expand your own horizons all over again. Try new artists, try new genres, check out other countries top 40 lists, get a handle on different accents, different cultural points of view, etc. Learning any language, especially as an adult, is a challenging endeavor. Sometimes it can be overwhelming, and sometimes -and this is the most frustrating- you can try to think of a word but it will only come to you in the language youre trying to learn. There is a mountain of theory on the subject, but the most relevant to the situation is Krashens Affective Filter Theory, which basically says that your emotional state of mind will have the biggest effect on how you learn. If a French nun used to beat you with a metre-stick, you may want to pick a different language. If you developed a love affair with the idea of that dream vacation in Paris and want to be your own interpreter, you will probably attain proficiency faster than you would expect. If you want to learn French, the best thing for you is practice, plain and simple. Never afraid to be wrong, never be afraid to sound foolish, just keep trying. This is what your tutor is here for. Even if you have to code-switch from French to English then back again, do that. Be comfortable sounding like a parrot for a while. You CAN do this, as long as you stay out of your own way! Bonne chance! Looking for a French tutor? TakeLessons tutors are available to give private French lessons in person or online via Skype. Search for your tutor now! Sean C. teaches English, French, grammar, and linguistics in Chandler, AZ. He received his BA in linguistics at Arizona University and he has been teaching students for four years. Learn more about Sean. Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher

Definite, Unique, Psychology Commonly Misspelled Words In English

Definite, Unique, Psychology Commonly Misspelled Words In English Having trouble spelling in English? This isn’t just a problem for students of English, it an issue that also affects native speakers.Look and the following images and see if you can spot the mistakes.25 Commonly Misspelled WordsAcceptable (don’t be tempted to end it with ible),Argument,Balloon (remember both lls and both os),Bureaucracy,Deceive,Definitely,Entrepreneur,February, (remember both r’s),Guarantee (don’t out the a before the u),Later (don’t turn it into latter),Loose (is very different from lose),Professor (don’t forget the second s),Prominent,Psychology,Pursue,Receipt, (don’t put i before the e),Receive (again…don’t put i before e),Recommend,Rhythm,Satellite,Sense, (don’t try and out a c in there),Scenery (don’t forget the c),Scissors,Unique,Weird.Let’s watch the following video on one teacher’s response to bad spelling and answer the questions that follow it.What is the teacher’s unusual approach to bad spelling from students?What does Rachel, aged 8, think of this approach?What does Max, aged 9, say?Did you find this blog interesting? Feel free to share it on Facebook and Twitter

New italki Brand Ambassador Kailin

New italki Brand Ambassador Kailin Congratulations to Kailin for becoming an italki Brand Ambassador! Below Kailin describes her experience. I first met italki this January, when I was searching for some English grammar  questions online. One of the italki users offered a very sufficient answer, which deeply  impressed me. Further exploring on italki, I felt that I discovered a new world of  language learning! italki not only solves my doubts through the learning process, but  also connects each of the language enthusiasts in the community.  In the past, I hesitated to contact with native speakers of English because I worried  that it might be somehow offensive. However, in italki, I dont need to hesitate. I  know that those who I meet are real language lovers who may want to have language  exchange, or truly kind helpers who don’t expect anything but are just willing to help.  My English writing and speaking skills improved dramatically with the help of my  italki friends and teachers. Many of them offered really professional corrections and  advice. Gradually, I saw fewer errors in writing and gained more fluency in s peaking.  As I progressed, my italki friends cheered for me as much as I did for myself. They  are teachers, friends and even mentors. Moreover, I am so glad that my corrections for  Mandarin writings are also helpful and effective! italki is not only a community of  give-and-take, but a place that generates goodwill and kindness. One day, I received an email advertising for becoming an italki brand ambassador and  now here I am. I am delighted to promote italki among the language enthusiasts on  campus. I am cheerful to hear my friends saying italki is amazing. I am also happy  to see that italki is growing increasingly popular and helping more and more language  enthusiasts. On Nov. 2nd, I promoted italki during the regular training held by the language club  in our university, which I have been actively involved in. Only one out of the sixty  members ever used italki before, but they are all language lovers! During the event, I  did a presentation about how I used and benefited from italki, especially writing  notebooks, asking questions and having online lessons. Their wow expressions told  me that they were very intrigued! When I was distributing the italki promotion cards  in the end, many of them asked whether they could have an extra one for their friends.  italki is an ideal place if you want to get immersed in a language and improve it with  the lowest cost. I am lucky that I found it this year and I really hope that italki can  reach more language lovers in the future! If youre interested in becoming an italki Student Brand Ambassador please contact Ilar at ilar@italki.com for more information! New italki Brand Ambassador Kailin Congratulations to Kailin for becoming an italki Brand Ambassador! Below Kailin describes her experience. I first met italki this January, when I was searching for some English grammar  questions online. One of the italki users offered a very sufficient answer, which deeply  impressed me. Further exploring on italki, I felt that I discovered a new world of  language learning! italki not only solves my doubts through the learning process, but  also connects each of the language enthusiasts in the community.  In the past, I hesitated to contact with native speakers of English because I worried  that it might be somehow offensive. However, in italki, I dont need to hesitate. I  know that those who I meet are real language lovers who may want to have language  exchange, or truly kind helpers who don’t expect anything but are just willing to help.  My English writing and speaking skills improved dramatically with the help of my  italki friends and teachers. Many of them offered really professional corrections and  advice. Gradually, I saw fewer errors in writing and gained more fluency in s peaking.  As I progressed, my italki friends cheered for me as much as I did for myself. They  are teachers, friends and even mentors. Moreover, I am so glad that my corrections for  Mandarin writings are also helpful and effective! italki is not only a community of  give-and-take, but a place that generates goodwill and kindness. One day, I received an email advertising for becoming an italki brand ambassador and  now here I am. I am delighted to promote italki among the language enthusiasts on  campus. I am cheerful to hear my friends saying italki is amazing. I am also happy  to see that italki is growing increasingly popular and helping more and more language  enthusiasts. On Nov. 2nd, I promoted italki during the regular training held by the language club  in our university, which I have been actively involved in. Only one out of the sixty  members ever used italki before, but they are all language lovers! During the event, I  did a presentation about how I used and benefited from italki, especially writing  notebooks, asking questions and having online lessons. Their wow expressions told  me that they were very intrigued! When I was distributing the italki promotion cards  in the end, many of them asked whether they could have an extra one for their friends.  italki is an ideal place if you want to get immersed in a language and improve it with  the lowest cost. I am lucky that I found it this year and I really hope that italki can  reach more language lovers in the future! If youre interested in becoming an italki Student Brand Ambassador please contact Ilar at ilar@italki.com for more information!

COMMON CORE MATH - ALOHA Mind Math

COMMON CORE MATH The common core is the set of high quality academic standards in Mathematics and English Language Arts/Literacy (ELA).  The learning objective of a student outlines what a student should know and do at the end of each grade from K-12.  The standards were to ensure that the students as they come out of schools have all the necessary skills to succeed in their college, career and entire life. Math and English were chosen as the subjects for Common Core standards as they are the building blocks of skill sets for various other subjects. Accepted by 42 states in the United States, the common core was the result of the stagnation in the academic progress of US students.  The US students were found lagging in international competitions and one of the primary reasons for stagnation was the uneven standards across US.  With inputs from teachers, school chiefs, administrators, educationists and experts, the Common Core initiative was a conscious effort to develop a common standard across the states. A lot of time, thinking and effort have gone into the development of Common Core Math standards.  The benefits are abundant that almost all states have agreed to the standard.  Many low income schools and schools with a large percent of colored students did not have equitable opportunities to learn.  With common standards, mathematics is a tool of liberation and equality. In the United States, students frequently move between districts and states; even during the middle of the year.  Lack of consistency in standards had earlier put them in hardship that is mitigated now.  The common core system also eliminates education being at the mercy of legislators and publishers. Common core enables teachers connecting through a conference, training session or online, to interact, share problems and solutions etc. The federal No Child Left Behind Act of 2001 is a law that mandates year-on-year testing for graders 3-8.  Before common core, states developed their own tests, which can now be replaced with better testing. As the nation moves towards a new approach towards math teaching, programs oriented towards parents are conducted by many schools, to engage them in the concept and help their children succeed.  Common Core Math is conceptual and emphasizes deeper understanding rather than the mechanical and repetitive problem solving methods followed earlier.  This new approach to math and problem solving will give students deeper math skills and prepare them to compete at international levels.