2 years ago

Element

Chemistry

1 answer:

salantis [7]2 years ago

7 0

Answer:

Explanation:

This is not the exact definition of a formula unit, but I think I know what is meant. You want the number of mols that 33.8 grams represents.

1 mol of SrF2

1 unit of Sr = 87.62

2 units of F = 19.00 * 2<u> = 38.00</u>

1 mol of SrF2 = 125.62

mols SrF2 = given mass / molar mass

given mass = 33.8

Molar mass = 125.62

mols = 33.8/125.62 = 0.269

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