An ammonia solution is 6.00 M and the density is 0.950 g/mL. What is the mass/ma

Question

An ammonia solution is 6.00 M and the density is 0.950 g/mL. What is the mass/mass percent concentration of NH3 (17.04 g/mol)? Question 65 options: 10.8% 0.108% 10.2% 0.0971% 9.71% thanks An ammonia solution is 6.00 M and the density is 0.950 g/mL. What is the mass/mass percent concentration of NH3 (17.04 g/mol)? An ammonia solution is 6.00 M and the density is 0.950 g/mL. What is the mass/mass percent concentration of NH3 (17.04 g/mol)? 10.8% 0.108% 10.2% 0.0971% 9.71% thanks 10.8% 0.108% 10.2% 0.0971% 9.71% thanks 10.8% 0.108% 10.2% 0.0971% 9.71% thanks

Explanation / Answer

Assume 100.0 g of solution.

Calc volume:

100.0 g / 0.950 g/mL = 105.263 mL = 0.105263 L

Calc moles, then grams of NH3:

6 mol/L = x / 0.105263 L

x = 0.631578 mol

0.631578 mol times 17.04 g/mol = 10.762 g

Calc mass/mass percent of NH3:

(10.762 g NH3/ 100 g sol) x 100 = 10.8 % NH3

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