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The pH of a sample of rain is found to be 4.0. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2?
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high, too low, or unaffected.
Litre of white gas, and density of the gas is 0.710 g/cm 3 . Calculate the mass of the fuel and express your answer in kgs?
Estimate the ratios of the basic and acidic forms of the histidine side chain
What is the composition in mole fractions of a solution of benzene and toluene that has a vapor pressure of 35 torr at 20 °C? Assume the mixture forms an ideal solution.
The bond distance and dipole moment calculated for the highly reactive gas phase OH molecule are 0.98Ao and 1.78D, respectively. Compute the effective charges on the O and H atoms of the OH molecule (in units of the electronic charges).
Nitric oxide has a density = 1.782 g/L at the temperature of 12.64 degree celsius and pressure of 670.7 mm Hg determine the mass percent of Sulfur dioxide?
A current of 3.15 A is passed through a Pb(NO3)2 solution for 1.40 hours. How much lead is plated out of the solution.
Determine the mass of snow that can be completely melted - Determine the mass of snow (frozen water) that can be completely melted with the application
The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1. How long will it take for 8.00 × 10-2 mol/L of HI to decrease to one-fourth of its initial concentration.
Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2.
Explain the type of nonrenewable energy resource used and their short-term and long-term effects on the environment
Determine the percent yield of barium sulfate If the actual yield = 0.456 grams?
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