Calculate the percentage of chloride in the original sample
A silver chloride precipitate weighing 0.2255 grams was obtained from 0.3448 grams of a soluble salt mixture. Calculate the percentage of chloride in the original sample.
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A nugget of gold with a mass of 521g is added to 50.0mL of water. The water level rises to a volume of 77.0mL. What is the density of the gold?
What volume would a 0.0236-mole sample of helium gas would occupy at a temperature of 24°C and a pressure of 0.750 atm?
Consider 4.40L of a gas at 365 mm Hg and 20 degrees celcius. Express the pressure numerically in millimeters of mercury.
The volume of the mixture is 1.7 L, and its total pressure is 0.998 atm. Determine the partial pressure of the hydrogen gas in this mixture
one mole of methane has a mass of 16.0 grams. How many grams of methane are needed to make 1.0 L of a 0.20 molar solution?
Consider the following equation that describes the complete combustion of propane. The bond energies are: C-H 416 kJ/mol; C-C 356 kJ/mol; O=O 498 kJ/mol; C=O 803 kJ/mol; H-O 467 kJ/mol.
The reaction system POCL3(g) POCL(g)+CL2(g) is at equilibrium. which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?
How much of the other reagent is left over after the reaction is complete?
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