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
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 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 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
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?
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
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
A solution was prepared by dissolving 37.0 g of KCl in 225 g of water. Calculate the mole fraction of the ionic species KCl in the solution. Calculate the molarity of KCl in the solution if the total volume of the solution is 239 mL. Calculate the molality of KCl in the solution.
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...