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how many grams of KO2 are needed to produce 885.0 L of O2 at 22.0 degrees Celsius and 1.00 atm
Consider the following reaction: NH4HS(s) NH3(g) + H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]=.278M and [H2S]=.355M.
Calculate how many atoms of potassium A three mole sample of K2S would have and Calculate the current for diffusion-controlled electrolysis
liquid NCl3 in a 2.50L closed container is heated until it decomposes completely to gaseous products. the resulting mixture exerts a pressure of 745mm Hg at 95 degrees celsius
Calculate the pH after 0.020 mol NaOH is added to 1.00 L of a solution which is 0.100 M NH2OH and 0.100 M HONH3Cl.
What proportions of ethanol and water should be mixed in order to produce 100 cm3 of a mixture containing 50 percent by mass of ethanol.
O2(g) + 4 HCl(g) → 2 H2O(l) + 2 Cl2(g) When 64.5 g of HCl are allowed to react with 17.6 g of O2, what is the theoretical yield of Cl2(g) in this reaction.
What volume of the solution must be used to make 800 mL of 0.15 M. potassium permangate from a 0.20 M. potassium stock solution.
how many atoms are in a small piece of aluminum foil that has a mass of 0.100 g? the mass of an atom of aluminum is 27.0 amu
Calculate the molar mass of a vapor that has a density of 1.88 g/L at 25.2 oC and 710. mmHg.
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
At 295 K, Keq = 7.0 x 10-2 for the following equilibrium: NH4HS(s) = NH3(g) + H2S(g) What is the equilibrium partial pressure (in atm) of H2S
A solution containing Pt4+ is electrolyzed with a current of 4.20 A. How long will it take to plate out 65% of the platinum in 0.50 L of a 0.010 M solution of Pt4+
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