Answer to Question #114575 in Inorganic Chemistry for Desiree

Question #114575
a 1.0g sample of a mixture which contains only NaCl and KCl have a precipitate of AgCl which weighed 2.0 g. what are the percentage of Na and K in the mixture?
1
Expert's answer
2020-05-08T14:12:02-0400

Solution.

x = n(NaCl)

y = n(KCl)

x = n(NaCl) = 0.003 mol

y = n(KCl) = 0.011 mol

m(Na) = 0.071 g

m(K) = 0.430 g

Answer:

w(Na in mix) = 7.10 %

w(K in mix) = 43.00 %


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