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A sample of Br2(g) takes 38.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
would bromine be a more or less effective disinfectant and bleaching agent than chlorine
H3PO4 behaves differently at different higher temperatures, give details of reaction that occurs at different temperatures
Imagine that you have a 7.00 gas tank and a 3.50 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
Calculate the mass (grams) of KHP needed to react with 40. mL of 0.10 M NaOH. B. If 0.7528 g of KHP standard were titrated with NaOH and the endpoint was reached at 36.33 mL
The expresssion for the freezing point depression of a solution relative to that of the pure solute is shown above. From solutions of known concentrations of p-dichlorobenzene in cyclohexane, you determine Kf, the freezing point depression constan..
calculate the equilibrium partial pressures of all gases in the reaction and set up the expression for Kp in terms of equilibrium partial pressures but do NOT solve.
reaction does k decrease over time what about in a 0 and 1 st order reaction. In a second order reaction does the half life increase over time what about in a 0 and 1 st order reaction?
PH And Percent Ionization, 1. Determine the pH and the percent ionization in a 0.50M solution of KOBr. The Ka for HOBr = 2.5 x 10 ^ -9.
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
Will there be any precipitate in the following situations? If so, then what compound will be the precipitate? Justify your answers. A) 23 micrograms of strontium chloride, SrCl2 is dissolved in 1.50L of 0.0088M ammonium fluoride, NH4F solution
How many grams will remain after 98.0 days if Phosphorus-32 has a half-life of 14.0 days Starting with 6.00g of ,?
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.066 moles of sulfuric acid is mixed with water to make 192 mililiter of solution, what is the molarity of H+?
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