Question

For the chemical reaction

2HCl+Ca(OH)2--->CaCl2+2H2O
What mass of CaCl2 is made from 3.59 mol HCl?

Answer 1

Mass = 199.21 g

Step-by-step explanation:

Given data:

Moles of HCl = 3.59 mol

Mass of CaCl₂ = ?

Solution:

Chemical equation:

2HCl + Ca(OH)₂ → CaCl₂ + 2H₂O

we will compare the moles of HCl with CaCl₂ from balanced chemical equation:

HCl : CaCl₂

2 : 1

3.59 : 1/2×3.59 = 1.795

3.59 moles of HCl will produced 1.795 moles of CaCl₂.

Mass of CaCl₂.

Mass = number of moles × molar mass

Mass = 1.795 mol × 110.98 g/mol

Mass = 199.21 g