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One mole of any gas has a volume of 22.414 L at STP. What are the densities of the following gases in g/L at STP?
what is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 ml.
suppose the pressure inside a pressure cooker reaches 1.3 atm. By using the vapor-pressure table, estimate the temperature at which water will boil in this cooker
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
a sculptor has prepared a mold for casting a bronze figure. the figure has a volume of 245 ml. if bronze has a density
When 67.7g of calcium and 30.5g of nitrogen undergo a reaction that has a 93.0% yield, what mass of calcium nitride forms
The density of hydrogen gas in a flask is 0.147 g/L at 305 K. what is the pressure inside the flask? Calculate the density in G/L of CH4(g) at 75 Celsius and 2.1 atm (R= .08206 L*atm/mol*K).
What is the percent-yield of H2 In the reaction below when an equimolar mixture of CH4 and CO2 with an initial total pressure of 20.0 atm reaches equilibrium at 1200. K, at which Kp = 3.548 x 106
identify the absorptions associated witht he carbonyl group and with the aromatic rings
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range.
A metal sulfide, M2(CO3)3, has a Ksp of 8.75 x 10^-42. What is the molar solubility of this sulfide in water. Assume the sulfide dissolves ideally (ignore hydrolysis effects).
Determine pH of a solution when 25.00 ml of 0.100 M HOAc is titrated with 0.100 M KOH. What is the pH at the equivalent point. (ka for HOAc = 1.80 x 10-5) HOAc + KOH ---- KOAc + H2O
Calculate the pH of a solution prepared by mixing 1.00 g of imidazole with 1.00 g of imidazole hydrochloride and diluting to 110.5 mL. (FM of imidazole = 68.08. Ka for imidazole = 1.02 * 10-7.)
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