# Problem: A chemist decomposes samples of several compounds; the masses of their constituent elements are listed. Calculate the empirical formula for each compound.2.128 g Be, 7.557 g S, 15.107 g O

###### FREE Expert Solution

2.128 g Be, 7.557 g S, 15.107 g O

We need to get the moles of each element in the compound.

The atomic masses are 9.012 g/mol Be, 32.06 g/mol S, and 16.00 g/mol O.

= 0.2361 mol Be

= 0.2357 mol S

= 0.9442 mol O

Divide the number of moles of each by the smallest value.

###### Problem Details

A chemist decomposes samples of several compounds; the masses of their constituent elements are listed. Calculate the empirical formula for each compound.

2.128 g Be, 7.557 g S, 15.107 g O