Question

find the formula mass of CaSO4 if atomic mass of ca =40.1 u S=32.1u and 0 =16.0 u​

Answer 1

Answer:

Explanation:

Its so simple!

formula mass = 40.1 + 32.1 + (16 × 4)

                      =136.2 g/mol

Answer 2

Given: The given compound is $CaSO_4$.

To find: We have to find its formula mass.

Solution:

The given compound is $CaSO_4$.

The atomic mass of Ca is 40.1u and the atomic mass of Sulfur is 32.1u.

The atomic mass of Oxygen is 16u.

This compound contains one Ca, one sulfur and four oxygen atoms.

So, its formula mass will be-

$40.1 + 32.1 + 16 \times 4 \\ 72.2 + 64 \\ = 136.2$

The formula mass of calcium sulfate is 136.2u.