Homework Answers
ANSWER- 2.12 M
Solution-
Molarity = moles of solute / liters of solution
In our case, solute is calcium hydroxide,
Moles of calcium hydroxide = mass / molar mass of calcium hydroxide
Mass = 78.5 grams
Molar mass ≈ 74.1 g/mol
Moles = 78.5 / 74.1 = 1.06 moles
Volume = 500mL = 0.5 L
Molarity = 1.06/0.5 = 2.12 M
Hope this helps :)
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