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A. A solution is made by dissolving 2.00 g of fructose (C12H22011) in 300.0 g of...
A salt solution was made by dissolving 17.32 g of NaCl in 400.0 mL of water. Calculate the molality (NOT molarity) of this solution Hint: Molality (m) = moles of solute / Kg of solvent Use 11Na23 and 17Cl35.5
Calculate the percent by mass of a solution made by dissolving 34.0g of NH3 in 2.00 x 10^3 mL of water. (molar mass NH3 = 17.04 g/mol, density of H20 = 1.00 g/mL).
Determine the molality of a solution made by dissolving 44.1 g of CH3OH in 737 g of H2O. m CH3OH
Determine the molality of a solution made by dissolving 0.134 moles of glucose in 471 mL of water. Assume the density of water is 1.00 g/mL. Determine the molality of a solution made by dissolving 28.1 g of CH3OH in 513 g of H20.
A. Determine the molality of a solution made by dissolving 42.6 g of CH3OH in 716 g of H2O. Answer:_____m CH3OH B. Determine the molality of a solution made by dissolving 0.568 moles of (NH4)2CO3 in 3366 g of H2O. Answer:_____m (NH4)2CO3 C. Determine the molality of a solution made by dissolving 0.519 moles of CH3OH in 746 g of ethanol. Answer:___m CH3OH
Solutions 1. Identify the solvent and solute(s) in each of the following solutions. Note that there may be more than one solute in a solution. A 20 g of calcium chloride CaCl2 dissolved in 100 g of water. Solvent Solute(s) B Air which contains 20.95% oxygen, 0.93% argon, 78.09% nitrogen and 0.04% carbon dioxide. Solvent Solute(s) C Rubbing alcohol which consists of 70% isopropyl alcohol and 30% water. Solvent Solute(s) D Alloy 7705 which consist of 6% zinc, 2.3% magnesium,...
A solution is made by dissolving 1.00 g of the ligand salen (C16H16N2O2) in enough water to make to make 1.00 L of solution. Determine the concentration of the resulting solution.
Determine the molality of a solution made by dissolving 0.365 moles of CH3OH in 636 g of ethanol. m CH3OH
A solution is made by dissolving 0.0200 mol of HF in 1.00 kg of water. The solution was found to freeze at –0.0443 °C. Calculate the value of i and estimate the percent ionization of HF in this solution.
A solution is made by dissolving 0.749 mol of nonelectrolyte solute in 861 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here. Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00 benzene C6H6 5.12 5.49 2.53 80.1 cyclohexane C6H12 20.8 6.59 2.92 80.7 ethanol C2H6O 1.99 –117.3 1.22 78.4 carbon tetrachloride CCl4 29.8 –22.9 5.03 76.8...