Question
empirical formula for
K 60.0% C 18.5% N 21.5%
and
P 7.5% I 92.5%
K 60.0% C 18.5% N 21.5%
and
P 7.5% I 92.5%
Answers
DrBob222
Take a 100 g sample which gives you
K = 60 g
C = 18.5 g
N = 21.5 g
Convert to mols.
mol K = 60/39.1 = ?
mol C = 18.5/12 = ?
mol N = 21.5/14 = ?
Now find the ratio of each element to each other. The easy way to do that is to divide the smallest number by itself (you know that will give you 1), then divide the other numbers by the same small number. Round to a whole number to give you KxCyNz. Post your work if you run into trouble.
K = 60 g
C = 18.5 g
N = 21.5 g
Convert to mols.
mol K = 60/39.1 = ?
mol C = 18.5/12 = ?
mol N = 21.5/14 = ?
Now find the ratio of each element to each other. The easy way to do that is to divide the smallest number by itself (you know that will give you 1), then divide the other numbers by the same small number. Round to a whole number to give you KxCyNz. Post your work if you run into trouble.