A solid consist of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid...

Question

Question

A solid consist of a mixture of NaNO3 and Mg(NO3)2

science chemistry

Answer 1

Answer #1

kf for water is 1.86 m

Let NaNO3 be x gms

ΔTf = iKfm

5.44 = [(x/85) + (6.5-x)/148]/0.05 x 1.86 x 5

0.029 = (x/85) + (6.5-x)/148

0.029 * 148 * 85 = 148x + 85(6.5-x)

x = 2.98 gms = NaNO3

Mg(NO3)2 = 3.52 gms

Answer 2

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