Answer:
97.2g
Explanation:
Step 1:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
Ca(OH)2 + 2HCl —> CaCl2 + 2H2O
Step 2:
Determination of the number of mole of water (H2O) to produce from the reaction.
This is illustrated below:
From the balanced equation above,
1 mole of Ca(OH)2 produced 2 moles of H2O.
Therefore, 2.70moles of Ca(OH)2 will produce = 2.7 x 2 = 5.4 moles of H2O.
Step 3:
Converting 5.4 moles of H2O to grams. This is illustrated below:
Number of mole of H2O = 5.4 moles
Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol
Mass of H2O =?
Mass = number of mole x molar Mass
Mass of H2O = 5.4 x 18
Mass of H2O = 97.2g
Therefore, 97.2g of water is produced from the reaction.
