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
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A solution is prepared to contain 0.379 g of cholesterol (C27H46O) in 148.0 mL of chloroform...
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 is prepared by dissolving 28.4 g of glucose (C6H12O6) in 1.00 x 102 mL of acetone (C3H6O) at 25 °C. The final volume of the solution is 118 mL. The density of glucose and acetone are 1.54 g/mL and 0.785 g/mL, respectively. Calculate the following quantities: a.) Molarity b.) Molality c.) Mass Percent d.) Mole Fraction
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?
A chemist combined chloroform (CHCI3) and acetone (C3H6O) to create a solution where the mole fraction of chloroform, Xchloem, is 0.219. The densities of chloroform and acetone are 1.48g/ml, and 0.791 g/ml, respectively. Calculate the molarity of the solution.Calculate the molality of the solution.
A solution is prepared by mixing 1.15 g of ethanol (CH3CH2OH) with 100. g of water. Calculate: (a) the percent by mass, (b) mole fraction, (c) molality, and (d) molarity of this solution. Assume that the density of the solution is 1.00 g/mL
レfoln Question #: 17 A solution prepared from 1o.o mL of chloroform (1.49 g/mL) in 5oo mL.of hexane(0 65 g/mL) Report your answer to three number of significant figures. Do NOT include units in your answer. has a concentration of 1 %by mass/volume. Assume the volumes are additive. 1 Io.O
Your lab partner combined chloroform (CHCl3) and acetone (C3H60) to create a solution where the mole fraction of chloroform, Xchloroform, is 0.219. The densities of chloroform and acetone are 1.48 g/mL and 0.791 g/mL, respectively. Calculate the molarity of the solution. Number Calculate the molality of the solution. Number Imi ITI
A solution is prepared by dissolving 16.2 g of benzene (C6H6) in 282 g of carbon tetrachloride (CCl4). The density of the solution is 1.55 g/mL. The molar masses of benzene and carbon tetrachloride are 78.1 g/mol and 154 g/mol respectively. What is the mass percent, mole fraction, molarity and molality of the benzene?
a solution was prepared by dissolving 27.0 g KOH in 100 g water. A) what is mole fraction of KOH in solution? B) what is mass percent?C) what is the molality? 2. A solution was prepared by dissolving 27.0 g KOH(s)in 100.0 g water. You may use the chart below if you find usefiul to answer questions a) -e) MW (g/mol Mass ()moles 56.1 H20 18.0 Solution (a) What is the mole fraction of KOH in the solution? (5 pts...
A solution is prepared by dissolving 27.75 g sulfuric acid, H2SO4, in enough water to make exactly 200.0 mL of solution. If the density of the solution is 1.1094 g/mL, what is 1. Weight % of H2SO4 in the solution? 2. Mole fraction of H2SO4 in the solution? 3. Molarity of H2SO4 in the solution? 4. Molality of H2SO4 in the solution?