gunlundsophia gunlundsophia

10-05-2020
Chemistry

contestada

How many grams of Calcium are present in 33.0 g of Calcium Fluoride, CaF2?

Respuesta :

rosavo0414 rosavo0414

10-05-2020

CaF2: 40 + 19 x 2 = 78 g/mol
33.0g / 78 g/mol = 0.42 mol CaF2
Ca + F2 -> CaF2
0.42 mol
0.42 mol x 1/1 = 0.42 mol Ca
0.42 mol x 40 g/mol = 16.8 g Ca

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