Asked by Cool Dom
3.Empirical formula is C4H5N2O.Its molecular weight is 194.19g/mole.The "empirical formula weight is about 97.1g/mole.What is the molecular formula ?
Answers
Answered by
DrBob222
Empirical mass = ??. Just add up the atomic masses of each element from the periodic table.
molar mass = empirical mass x a number.
How do you find the number? It is 97.1/empirical mass and round that to a whole number. You will note that the problem lists the molar mass as "about" 97.1 so when you divide you will get a number something like 1.07 or 2.05 or 4.94 and you would round those to 1.00 or 2.00 or 5.00 and that is the number to be used. That number x empirical mass = molar mass (or formula mass).
molar mass = empirical mass x a number.
How do you find the number? It is 97.1/empirical mass and round that to a whole number. You will note that the problem lists the molar mass as "about" 97.1 so when you divide you will get a number something like 1.07 or 2.05 or 4.94 and you would round those to 1.00 or 2.00 or 5.00 and that is the number to be used. That number x empirical mass = molar mass (or formula mass).
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.