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If .090 mole of solid NaOH is added to 1.0 liter of .180 M CH3COOH, what will the pH of the resulting solution be?
For supercritical carbon dioxide, predict the effect that the following changes will have on the effect that the following changes will have on the elution time in an SFC experiment.
At constant volume, the heat of combustion of a particular compound is -3547.0 kJ/mol. When 1.129 g of this compound (molar mass = 100.35 g/mol) was burned in a bomb calorimeter
A solution has an H3O1+ concentration of 1.7 10-2 M. What is the hydroxide ion concentration?
5Ca+ V2O5 ----> 5CaO + 2V In one process, 1.54 x 10^3 g of V2O5 react with 2.07 x 10^3 g Ca. Calculate the theoretical yield of V. Calculate the percent yield if 795 g V are obtained
A water treatment plant has a flowrate of 40,000 m3/d. If the overflow rate is 25 m3/d/m2, determine the following:
A helium-filled weather balloon has a volume of 714 L at 23 oC and 750 mmHg. It is released and rises to an altitude of 3.78 km, where the pressure is 546 mm Hg and the temperature is -2oC. The volume of the balloon at this altitude is
Aluminum metal reacts with sulfuric acis, H2SO4, to yield aluminum sulfate and hydrogen gas. Calculate the mass of aluminum metal needed to produce 13.2g hydrogen.
A 25.0-mL sample of 0.150 M butanoic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka of butanoic acid is 1.5 x 10-5.
If the unknown had been acetaminophen, how much water would it take to dissolve 1.00 g of it in boiling water. Solubility: c.w. (1g/ 70 mL) b.w. (1g/ 20 mL)
Consider a certain type of nucleus that has a rate constant of 2.62 * 10^-2 min^-1. Calculate the time rquired for the sample to decay to one-fourth of its initial value.
A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon
If the reaction is first order in A and second order in B, what is the rate when the initial concentration of A = 2.30 mol/L and that of B = 2.03 mol/L
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