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Problem- A beaker with 160mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.80mL of a 0.340MHCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
State your answer by means of two significant figures.
What is the pH of a solution prepared by mixing exactly 56.1 mL of 0.200 M HC2H3O2 with 14.9 mL of 0.400 M KOH. (Ka for acetic acid equals 1.8 x 10-5).
What type of reaction is the referenced reaction. Is the referenced reactions an oxidation-reduction reaction. If the reaction is a redox reaction, which element is oxidized and which element is reduced.
A 12.0 g sample of solic NH4Cl is heated in a 5.00 L container to a high temperature. At equilibrium, the pressure of NH3 (g) is 1.22 atm. What is the value of Kp for the reaction
hydrogen gas was collected over water in a eudiometer at 26 degrees c when the atmospheric pressure was 726 mm hg. What was the pressure of the hydrogen gas?
In an acid-base titration experiment, 50.00 mL of a 0.0500 M solution of acetic acid (ka=1.75 x 10^-5) was titrated with a 0.0500 M solution of NaOH at 25 degree C
mnbipyn32 is a coordination complexwith azide ion. what is the charge on the manganese? what is the overall charge on
Find out the morality of KMnO4 when the mass of the Fe-ASH sample is 1.0913 g, and the volume is 32.1mL
What happens to the pH when the buffer contains more of the weak acid than the conjugate base. More of the conjugate base than the weak acid
Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain number of water molcules are include in the solid structure. the formula for Epsom salts can be written as MgSO4
Consider the fructose-1,6-bisphosphate rxn from gluconeogenesis. What is the free energy change if the ratio of the concentrations of the products to the concentrations of the reactants is 22.5, and the temperature is 37.0 C. Delta G is -16.7kJ/mo..
The Kb of methylamine is 4.4*10^-4. What is the pH of a 0.35 M solution of methylamine? a. 10.19 b. 3.81 c 12.09 d. 1.91 e. 11.56
Cv and Cp denote the molar specific heat capacities of a gas at constant volume and constant pressure, respectively. Then (A) Cp âˆ' Cv is larger for a diatomic ideal gas than for a monoatomic ideal gas.
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