Calculate the mass percent of aluminum chloride in this solution. PPLEASE (:?
2016-05-30 9:58 pm
39.9 grams of solid aluminum chloride, AlCl3 is dissolved in 206 mL of water at 20°C.
回答 (1)
2016-05-30 10:11 pm
Density of water = 1 g/mL
In the solution :
Mass of water = (206 mL) × (1 g/mL) = 206 g
Mass of AlCl₃ = 39.9 g
Total mass = (206 + 39.9) g
Mass percent of AlCl₃ = [39.9/(206 + 39.9)] × 100% = 16.3%
In the solution :
Mass of water = (206 mL) × (1 g/mL) = 206 g
Mass of AlCl₃ = 39.9 g
Total mass = (206 + 39.9) g
Mass percent of AlCl₃ = [39.9/(206 + 39.9)] × 100% = 16.3%
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