Answer to Question #186518 in General Chemistry for Keira Folik

Question

 A mixture of calcium chloride and magnesium chloride weighing 2.000g was mixed with sulfuric acid until no more

calcium sulfate precipitated. The precipitate after drying and weighing had a mass of 0.736g. 

a)Find the moles of calcium ion.

b) Find the moles of calcium chloride in the original mixture.

c) Find the grams of calcium chloride in the original mixture.

d) Find the percentage (by mass) of calcium chloride in the original mixture.

Answer 1

Moles of calcium ions =0.0316moles

Moles of Calcium Chloride =2.18moles

Grams of Calcium Chloride =12.6g