Soru
16) The concentration (M) of HCl in a solution prepared by dissolving 5.5 gof HCl in 200 g of C_(2)H_(6)O __ M. The density of the solution is 0.79g/mL A) 21 B) 0.93 C) 0.58 D) 6.0times 10^-4
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Cevap
To find the concentration of HCl in the solution, we need to calculate the number of moles of HCl and divide it by the volume of the solution in liters.Given:- Mass of HCl = 5.5 g- Density of the solution = 0.79 g/mLFirst, let's calculate the volume of the solution in liters. The density is given in g/mL, so we need to convert it to g/L:Density = 0.79 g/mL = 0.79 g/mL * 1000 mL/L = 790 g/LNow, we can calculate the volume of the solution in liters:Volume = Mass / Density = 200 g / 790 g/L = 0.2532 LNext, let's calculate the number of moles of HCl:Moles of HCl = Mass / Molar mass = 5.5 g / (36.46 g/mol) = 0.151 molFinally, we can calculate the concentration of HCl in the solution:Concentration = Moles / Volume = 0.151 mol / 0.2532 L = 0.596 MTherefore, the concentration of HCl in the solution is approximately 0.58 M.The correct answer is C) 0.58.