# How do you calculate the mass of tin oxide?

Feb 11, 2017

Of $\text{stannous oxide}$ or $\text{stannic oxide}$?

#### Explanation:

Well, we can do both.........

$S n O ,$ $\text{stannous oxide:}$

$\text{Formula mass} = \left(118.7 + 15.999\right) \cdot g \cdot m o {l}^{-} 1 = 134.7 \cdot g \cdot m o {l}^{-} 1.$

$S n {O}_{2} ,$ $\text{stannic oxide:}$

$\text{Formula mass} = \left(118.7 + 2 \times 15.999\right) \cdot g \cdot m o {l}^{-} 1 = 150.7 \cdot g \cdot m o {l}^{-} 1.$

There are other mixed valence oxides known.