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If 525 mL of gas at 25 degrees is heated to 50 degrees at constant pressure, calculate the new volume of the sample gas.
a solution is prepared by adding 40.3 g of Mg(NO3)2 to 127 g of water. Calculate the mole fraction and molality of magnesium nitrate in this solution
Aqueous solutions of sodium thiosulfate, Na2SO3, are used as an antidote to some snakebites. How many moles of sodium ions are found in 10.0 mL of a 0.15 M solution of Na2S2O3?
Consider the following reaction: 2H2O + 2SO2 2H2 + 3O2 A reaction mixture initially contains 2.8M H2O and 2.6 M SO2.
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
What is the solubility product constant for Ag3PO4 if 6.37 mg of Ag3PO4 can be dissolved in 850 mL of water?
How many moles of ammonium ions are released when 1.6 mol of ammonium phosphate, (NH4)3PO4, is dissolved in water?
A 530. g piece of copper tubing is heated to 89.5°C and placed in an insulated vessel containing 159 g of water at 22.8°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K
Deuterium oxide (D2O, where D is deuterium, the hydrogen-2 isotope) has an ion-product constant, Kw, of 8.9 x 10^-16 at 20 *C (degrees Celsius). Calculate [D+] and [OD-] for pure (neutral) D2O at this temperature.
Find the Density of a substance with a mass of 51.2g and a volume of 150mL
The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K, respectively. How much heat (kJ)
What volume of Maker's Mark was consumed if the individual was drinking Maker's Mark (130 proof),?
What is the composition in mole fractions of a solution that has a vapor pressure of 39 at 20 ? Express your answer using two significant figures.
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