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# Solved: For each compound, list the correct formula and

ISBN: 9780321910295 34

## Solution for problem 97P Chapter 5

Introductory Chemistry | 5th Edition

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Problem 97P

For each compound, list the correct formula and calculate the formula mass.

(a) tin(IV) sulfate

(b) nitrous acid

(c) sodium bicarbonate

(d) phosphorus pentafluoride

Step-by-Step Solution:
Step 1 of 3

Solution 97P

Here, we are going to calculate the formula mass.

Formula mass is the average mass of the molecule of a compound.

Formula mass of a molecule can be calculated by using the following formula.

Formula mass = (no of atoms of the element ) x (atomic mass of 1st element) + (no of atoms of the element ) x (atomic mass of 2nd  element) +...

(a) tin(IV) sulfate

The chemical formula of the compound is Sn(SO4)2.

Formula mass

=  1 x(atomic mass of Sn)+ 2 x(atomic mass of S )+ 8 x(atomic mass of Oxygen)

= 1 x 118.71 amu + 2 x 32.06 amu + 8 x 16 amu

= 118.17 + 64.12 + 128.0

= 310.83 amu

The formula mass of  tin(IV) sulfate is 310.83 amu.

(b) nitrous acid

The chemical formula of the compound is HNO2.

Formula mass =1x(atomic mass of H)+1x(atomic mass of N )+2 x(atomic mass of Oxygen)

= 1x 1.008 + 1x 14.00 + 2...

Step 2 of 3

Step 3 of 3

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