Find the formula mass of ${CaSO}_{4}$ if the atomic mass of $Ca$ = $40.1 u$ , $S$ = $32.1 u$ and $O$ = $16.0 u .$

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Solution

To calculate the Formula mass of ${CaSO}_{4}$ given data -
The atomic mass of $Ca$ = $40.1 u$
The atomic mass of $S$ = $32.1 u$
The atomic mass of $O$ = $16.0 u .$
Step-2 Calculating the formula mass
$F o r m u l a m a s s o f C a S O_{4} = A v e r a g e a t o m i c m a s s o f C a + A v e r a g e a t o m i c m a s s o f S + 4 \times A v e r a g e a t o m i c m a s s o f O$
The formula mass of $C a S O_{4} = 40.1 + 32.1 + 4 \times 16$ u
The formula mass of $C a S O_{4} = 106.2$ u

Hence, the formula mass of ${CaSO}_{4}$ is $106.2 u$

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Find the formula mass ofCaSO4 if the atomic mass of Ca =40.1u ,S=32.1u and O =16.0u.

Find the formula mass of ${CaSO}_{4}$ if the atomic mass of $Ca$ = $40.1 u$ , $S$ = $32.1 u$ and $O$ = $16.0 u .$