A 1.000g sample of a mixture which contains only NaCl and KCl gave a precipitate of AgCl which weighed 2.000g. What are the percentages of Na and K in the mixture?
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15 percent of original amount
Explanation:
let x gm of nacl so 1-x gm of kcl
in nacl 35.5/58.4 contain the cl
in kcl gm of cl form kcl 35.5 / 74.6
simliary for agcl 35.5/143
solve
x36.5/58.4 +1-x35.5/74.6equals 2gm35.5/143
solving we get x eqauls to0.148
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