Chlorine can be generated by heating together calcium hypochlorite and hydrochlo

Question

Chlorine can be generated by heating together calcium hypochlorite and hydrochloric acid. Calcium chloride and water are also formed.
a) If 60.0 g of Ca(OCl)2 and 325 mL of 6.00 M HCl are allowed to react, how many grams of chlorine gas are formed?
b) 12.6 g chlorine gas is isolated in the laboratory. Calculate the % yield.

Explanation / Answer

2HCl + Ca(OCl)2 -> Ca(OH)2 + 2Cl2 moles of HCl = 0.325 x 6 = 1.95 moles moles of Ca(OCl)2 = 60/143 = 0.41958 so Ca(Ocl)2 is limiting moles of Cl2 formed = 2 x moles of Ca(OCl)2 = 0.83916 mass of Chlorine gas = 29.79 gms b) yeild = (29.79-12.6)/29.79 = 0.57705 = 57.7 % yield

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