For the chemical reaction 2HCl+Ca(OH)2⟶CaCl2+2H2O how many moles of calcium chloride will be produced from 27.4 g of hydrochloric acid?

Answer 1

The answer is: 0.375 mol of CaCl₂ will be produced from 27.4 grams of HCl

Solution:

1 mol of HCl is 36.5 grams ==> 27.4 g of HCl constitute 0.75 mol. Since for every 2 molecules of HCl we get 1 molecule of CaCl₂, 0.75/2 = 0.375 moles of CaCl₂ will be produced.