. Asbestos was used for years as an insulating material in buildings until prolo

Question

. Asbestos was used for years as an insulating material in buildings until prolonged exposure to asbestos was demonstrated to cause lung cancer. Asbestos is a mineral containing magnesium, silicon, oxygen, and hydrogen. One form of asbestos, chrysotile (520.27 g/mol), has the composition 28.03% magnesium, 21.60% silicon, 1.16% hydrogen. Determine the molecular formula of chrysotile. 2. If 10.0 g of calcium hydroxide are reacted with 10.0 g of carbon dioxide to produce calcium bicarbonate: Ca(OH)2 + 2CO2 Ca(HCO3)2 a. b. What is the limiting reactant? How many grams of calcium bicarbonate will be produced?

Explanation / Answer

Question 2

Balanced equation:
Ca(OH)2 + 2 CO2 ===> Ca(HCO3)2
Reaction type: synthesis

10 gm of Ca(OH)2 = 10 / 74.09 = 0.134966 Moles

10 of CO2 = 10/44 = 0.2272 Moles

Limiting reagent is CO2

Moles of Ca(HCO3)2 to be produced = 0.11361 x 162.11 = 18.417 gm

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