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Using the Henderson-Hasselbalch equation, calculate the pH of an ammonia buffer when the NH3:NH4+ ratio is 0.4 moles:0.6 moles. (pK = 9.75). Please explain and will rate lifesaver.
Calculate the work (in kJ) done on the system when 1.10 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4
You have 0.3991 g of an unknown monoprotic acid, HA, which reacts with NaOH according to the balanced equation HA + NaOH ® NaA + H2O
calculate the PH of a buffer solution prepared by dissolving 21.5 g benzoic acid and 37.7g sodium benzoate in 200.0 mL of solution?
a laboratory analysis showed that a silt loam soil contained 4 meq naper 100g soil. soil ph 8.7 and cec 15 meq100g
draw the organic product you would expect to obtain from reaction of the following model triglyceride
what is the pH of a Tris buffer (pka 8.1) prepared by adding 20 mL of 1M HCl to 100mL of a solution of 0.3M Tris
Assuming gasoline is 89.0% isooctane, with a density of 0.692 g/mL, what is the theoretical yield (in grams) of CO2 produced by the combustion of 1.56 x 1010 gallons of gasoline
what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius
a stock solution is prepared by adding 21 ml of 1 m alcl3 to enough water to make 76 ml. what is the cl- concentration
Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 424 K, Kc = 0.080 for the following equilibrium:
A mixture was prepared with the following initial concentrations: [CO] =0.20M, [H2O] = 0.30 M. No formic acid, HCHO2, was initially present. What was the equilibrium concentration of HCHO2?
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