レfoln Question #: 17 A solution prepared from 1o.o mL of chloroform (1.49 g/mL) in 5oo...
A solution is prepared to contain 0.379 g of cholesterol (C27H46O) in 148.0 mL of chloroform (CH3Cl), density = 1.49 g/mL at 25°C Moles of cholesterol Moles of chloroform Molality of the solution Mole fraction of cholesterol
A solution is prepared to contain 0.379 g of cholesterol (C27H46O) in 148.0 mL of chloroform (CH3Cl), density = 1.49 g/mL at 25°C Calculate the following Moles of cholesterol Moles of chloroform Molality of the solution Mole fraction of cholesterol
A solution was made by mixing 30.0 mL of chloroform (d = 1.49 g/mL, M.W. = 119.38 g/mole) with 50.0 mL of tetrahydrofuran (d = 0.889 g/mL, M.W. = 72.11 g/mole). If the vapor pressures of chloroform and tetrahydrofuran are 158.4 torr and 142 torr, respectively, what is the vapor pressure of this solution?
Question 17 A solution is prepared by dissolving 45 g sodium carbonate, Na2CO3, in enough water to make 200 mL of solution. If the density of the solution is 1.1094 g/mL, what is the % mass of the solution? Question 18 Calculate the molarity of a 4.628 m solution of Sr(NO3)2 in H2O. The density of this solution is 1 g/mL Include units. Question 19 What is the molarity of a sodium chloride solution prepared by diluting 2.1 mL of...
Consider that you prepared a solution by dissolving 1.29 mL of an unknown organic substance (d = 0.953 g/mL) into 29.4 mL of cyclohexane (d = 0.774 g/mL). What is the mass percent of the unknown in the solution? Enter your answer in units of mass percent to three significant figures.
a.)Calculate the mass percent (m/m) of a solution prepared by dissolving 47.97 g of NaCl in 170.1 g of H2O. Express your answer to four significant figures. b). Vinegar is a solution of acetic acid in water. If a 285 mL bottle of distilled vinegar contains 17.8 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures. c.)Calculate the mass/volume percent (m/v) of 19.0 g NaCl in 48.0 mL of...
#29 What is the concentration in M of a solution prepared from 58.1 g NaCl dissolved in a total volume of 3L of solution ? report answer with the right significant figures
1)Calculate the mass percent (m/m) of a solution prepared by dissolving 54.78 g of NaCl in 151.4 g of H2O. Express your answer to four significant figures. 2)Vinegar is a solution of acetic acid in water. If a 245 mL bottle of distilled vinegar contains 26.1 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures. 3)Calculate the mass/volume percent (m/v) of 24.0 g NaCl in 69.5 mL of solution....
a. Calculate the mass percent (m/m) of a solution prepared by dissolving 43.83 g of NaCl in 168.6 g of H2O. Express your answer to four significant figures. b. Vinegar is a solution of acetic acid in water. If a 125 mL bottle of distilled vinegar contains 31.3 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures c. Calculate the mass/volume percent (m/v) of 18.5 g NaCl in 71.5...
Calculate the mass percent (m/m) of a solution prepared by dissolving 58.66 g of NaCl in 169.7 g of H2O. Express your answer to four significant figures. Vinegar is a solution of acetic acid in water. If a 245 mL bottle of distilled vinegar contains 20.9 mL of acetic acid, what is the volume percent (v/v) of the solution Express your answer to three significant figures. Calculate the mass/volume percent (m/v) of 15.5 g NaCl in 71.5 mL of solution....