How

Chemistry

1 answer:

Anika [276]2 years ago

5 0

Mass of CaS : 135.27 g

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

4 HgS(s)+ 4 CaO(s) → 3 CaS(s) + CaSO₄(s) + 4Hg(l).

mole of CaS

$\tt \dfrac{3}{4}\times 2.5=1.875$

mass of CaS

MW CaS : 72,143 g/mol

$\tt 1.875\times 72.143=135.27~g$

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