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Argon gas is 10 times denser than helium gas at the same temperature and pressure. Which gas is predicted to effuse faster? How much faster?
calculate the freezing and boiling points of each of the following solutions. 0.40 mol ethylene glycol and 0.17mol KBr in 122 g H2O.
Write and balance net ionic equation for oxalic acid reacting with permanganate ion in acidic solution.
A gas mixture being used to simulate the atmosphere of another planet consists of 324 mg of methane, 217 mg of argon, and 228 mg of nitrogen.
What is the mass of a magnesium block that measures 2.3 cm * 3.5 cm * 1.5 cm? The density of magnesium is 1.738 g/cm^3
Verify the first equality in R (beta(delta e)^2e^Beta(delta e)/[e^Beta(delta e)-1]^2 using the chain rule, and then verify the second equality in the same bolded equation by evaluating the derivative with respect to Beta
A trayed column is used to recover acrylic acid and acetic acid from a dilute gas stream by absorption in water. At the same vapor concentration, acrylic acid is about two times as soluble as acetic acid in water
What is the complete and balanced equation for and please let me know if in any of them there is no reaction. KCl+PbCH3COO? CrBr2+AgNO3? NaOH+FeCl3
A second sample of this acid weighing 2.00 grams is added to the titrated sample and the pH is 4.32. Calculate the molar mass of the unknown acid and determine the value of Ka for this acid.
The value of the gas constant is 0.08206 L x atm/(mol x K). You may also find the conversion factors 1 atm = 760 torr and Tk = Tc + 273 useful.
Equal volumes of 0.180 M weak base (Kb=2.5x10^-9) and 0.180 M HCl are mixed. Calculate the pH of the resulting solution.
Exactly 5.02 grams of an unknown gas was sealed in a 3.0 L flask at 37.0oC and a pressure of 1.25 atm.
Describe clearly why a single indicator solution in only useful for measuring pH over a rather narrow range. Use a specific indicator of solution
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