51.5 g of magnesium nitrate (100% ionizing) are dissolved in 500.0 cm^3 of water. What are the boiling points and freezing points of the resulting solutions?
51.5 g of magnesium nitrate (100% ionizing) are dissolved in 500.0 cm^3 of water. What are...
The Solubility Product Constant for magnesium nitrate is >1. If magnesium nitrate is dissolved in water you can say that the equilibrium concentrations of magnesium and nitrate ions are: A. High B. Moderate C. Low The solubility of magnesium nitrate in water is: A. High B. Moderate C. Low
4. Sodium hydroxide dissolved in water is considered an electrolyte. Magnesium chloride dissolved in water is also considered an electrolyte. If these two solutions were mixed together, would a precipitate form? If so, what is the formula of that precipitate? Would the resulting solution still be considered an electrolyte? Why or why not?
2. A solid sample of 7.50 g K2S is dissolved in 500.0 g H2O in a coffee-cup calorimeter. The temperature of the water rises from 25.0 to 28.7 °C. Calculate dH for the dissolution of potassium sulfide in water. Assume the specific heat of the resulting solution is the same as water; 1.00 calories/gram degree C.
Question #2 -/1 points How many grams of calcium nitrate need to be dissolved in 75 mL of water to form a solution that has a freezing point of -3.2 deg C? grams of calcium nitrate Evaluate Question #3 -/1 points What is the freezing point in °C) of a solution of 8.0 g of carbon tetrachloride, CCl4, in 80.0 g of benzene, C6H6. For benzene, Tp = 5.5°C and Kf = 5.12 deg kg mole?? Freezing point of solution...
10) A sample of potassium nitrate (49.0 g) is dissolved in 101 g of water at 100 °C with precautions taken to avoid evaporation of any water. The solution is cooled to 30.0 °C and a small amount of precipitate is observed. This solution is
A 15.3 g sample of a compound known to contain 3 ion species is dissolved in 110 g of water. The boiling point of the solution is 103.0 degrees Celsius. What is the molar mass of the compound? Additional Info: Physical Properties of water Freezing point: 0.00 degrees Celsius Boiling point: 100 degrees Celsius Kf: 1.86 Degrees Celsius/m Kb: 0.512 degrees Celsius/m
13.4 g of magnesium chloride is dissolved in 250. mL of water. What is the molarity of the solution? Round your final answer to three significant figures.
For water, Kf = 1.86 °C∙kg/mole, Kb = 0.52 °C∙kg/mole and density = 1.00 g/mL. Calculate the boiling and freezing points of the following aqueous solutions: a) 18.4 g of glucose (C6H12O6) in 95.5 g of water. b) 15.0 g of magnesium fluoride in 75.0 mL water.
A 12.5855 g sample of an unknown compound (X) is dissolved in 32.0000 g of water. The resulting solution has a freezing point of – 4.3oC. What is the molar mass of X? Kf = 1.858 oC/m.
The boiling point of water is 100.0°C at 1 atmosphere. How many grams of aluminum nitrate (213.0 g/mol), must be dissolved in 279.0 grams of water to raise the boiling point by 0.450°C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02