Asked Feb 9, 2020

(a) Calculate the mass percentage of NaNO3 in a solution containing 13.6 g of NaNO3 in 834 g of water. (b) An alloy contains 2.86 g of chromium per 100 kg of alloy. What is the concentration of chromium in ppm?


Expert Answer

(a) Calculation for the mass percentage of NaNO3 in a solution:


Mass of NaNO3 = 13.6 g

Mass of water (H2O) = 824 g


Calculation for mass percent of NaNO3:

Chemistry homework question answer, step 1, image 1


The mass percent of NaNO3 in solution is 1.62%.


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