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Description of Intermolecular forces
What parts of the calcium chloride are attracted to what parts of the water molecule when calcium chloride dissolves in water with the right kind of electrical attraction?
Which is the excess reactant in the given reaction Na 2 S + CuSO 4 Na 2 SO 4 + CuS it is given that you start this reaction wit 15.5 grams of Sodium sulfide and 12.1 grams of copper sulphate?
What volume (in mL) of a 1.420M NaOH solution is required to titrate 25.0mL of 4.50M HCl solution.
Determine the mass of CuSO4 · 5H2O that must be used to prepare 250 mL of 0.88 M CuSO4(aq).Answer in units of g.
Determine ?H for the formation of one mole of aluminium(III) oxide, Al2O3(s) from the elements?
The density of water decreases from 1.000g/mL at 3.98°C to 0.9170g/mL as ice at 0°C. By what volume (in mL) would a 2.632 liter flexible plastic bottle increase.
Thermochemistry : Comparing Heat Capacity of Bricks and Water, A house is designed to have passive solar energy features. Brickwork incorporated into the interior of the house acts as a heat absorber. Each brick weighs approximately 1.8 kg
A 0.113 g sample of a gas exerts a pressure of 780 torr in a 50.4 mL container at 23?C.What is the molar mass of this gas?
E85 fuel is a mixture of ethanol and gasoline. What is the mass in kilograms of E85 (d=0.758g/mL) in a 14.0 gallon tank.
Calculate the concentrations of all species at equilibrium for each of the given original mixtures. 1.2 mol of NOCl and 1.2 mol of NO in a 1.0-L flask? K = 1.6*10^-5 mol/L
A 4.63 g sample of a molecular compound is dissolved in 103 g of tetrachloromethane (carbon tetrachloride). The normal boiling point of the solution is 61.51?C.
Electrolytes and Molarity, Iii)salt is added to 81.4 g of water? iv) Identify the electrolytes and the non-electrolytes among the following compounds
If the volume of ocean water (calculated above) contains 3.7 percent sodium chloride ("salt") by mass and the density of the water is 1.41 g/mL.
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