A sample of indium chloride, #"InCl"_3#, is known to be contaminated with sodium chloride, NaCl. The contaminated sample is then treated with excess #"AgNO"_3#(aq). What is the percentage by mass of #"InCl"_3# in the sample?
A sample of indium chloride, #"InCl"_3# , is known to be contaminated with sodium chloride, NaCl. The contaminated sample weighs 2.55 g. When the contaminated sample is treated with excess #"AgNO"_3# (aq), 5.16 grams of AgCl(s) are obtained. What is the percentage by mass of #"InCl"_3# in the sample?
A sample of indium chloride,
1 Answer
Purity of
Explanation:
First, write down chemical equation and see what happens:
Atomic weights for
Then calculate the molar mass(g/mol).
Now let
Consider the weight of sample:
Consider the weight of
Solve the simultaneous equation and you will find:
The amount of