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What are the concentrations of HSO4-, SO42-, and H+ in a 0.255 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 10-2.)
Understanding Vapour Pressure, Which would you expect to exhibit the highest vapor pressure at room temperature?
Calculate the number of moles of Cl atoms in 1.20×1024 of magnesium chloride, MgCl2.
Calculate the Gibbs energy of the reaction (delta G rxn) at 25'C for the above rxn when all three gases are at 0.0010 atm. Kp = 1.8 x 10 ^ - 18
Determine the new volume of a 1.3 L balloon if it is taken from room temperature that is twenty five degree celsius and placed into a freezer at the temperature of -11.5 degree celsius.?
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
Compute the partial pressure of N2 at the surface of theH 2 O in mmHg. The Henry's law constant for nitrogen gas =1.3x 10^-3 mol/L x atm? at 25 degrees Celsius
A 5.34 g sample of an aluminum alloy is reacted with hydrochloric acid to produce aluminum chloride and hydrogen gas. At a temperature of 298 Kelvin and a pressure of 1.03 atm, a volume of 1.53 L of hydrogen gas is collected.
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
A half-life of phosphorus-32 =14.0 days. starting with six grams of 32P, determine how many grams would remain after 112 days
a 35.00 mL sample of NaOH solution is titrated to an endpoint by 14.76 mL of 0.4122M HBr solution, what is the molarity of the NaOH?
Determine the ΔH solution for this compound If the heat of solvation for this compound = -30.8 kJ/mol , crystal lattice energy = -62.2 kJ/mol.
Determine the precipitate that forms if silver nitrate aqueous solutions and KCl react to produce products in a double-replacement reaction.
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