A compound contains 42.3913 % of potassium , 15.2173 % of iron, 19.5652% carbon and 22.8260% of nitrogen .Molecular mass is 368 .Find the molecular formula.
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- Divide each percentage value by their relative atomic mass
- Then divide the values obtained by the smallest value among them
- It any answer comes in decimals(not 4.95etc it can be written as 5), multiply that value or that values(if more) starting from 2to make it a whole number
- Then use the empirical formula that is obtained by these calculations and calculate the molecular mass from it
- Then divide the molecular mass given by the mass calculated from the empirical formula
- You will get values like 2,3etc.Multiply the value obtained by the empirical formula like 2(CHO)=C2H2O2 or 3(CFC)=C3F3H3 etc
- You will get the molecular formula
shweta904346:
i didn't asked steps..i asked solution..
That u should do it on your own for ur betterment
I have provided u with all the necessary steps to calculate it so whats the problem in following the steps and doing it on ur own
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