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A) What is the pH of a solution made by mixing 30.0 mL of 0.10 M acetic acid, CH3COOH, with 30.0 mL of 0.10 M KOH? (See Appendix C for necessary information.) B) Write the balanced net ionic equation for the following reaction in basic solution. Be sure to show phase labels in your final answer. Mn2+ (aq) + H2O2 (aq) MnO2 (s) + H2O (l) c) Indicate whether ammonium nitrate will produce an acidic, basic, or neutral solution. Then, write the balanced equation that explains why that pH is seen. D) What is the pH of the resulting solution when 25.0 mL of 0.432 M methylamine, CH3NH2, is added to 15.0 mL of 0.234 M HCl? Ka = 2.70 x 10-11 for CH3NH3+
CS2(l) + 3O2(g) -> CO2(g) + 2SO2(g) What volume of O2 is required to react with excess CS2 to produce 4.0 L of CO2? Assume all gases are measured at 0oC and 1 atm.
A large balloon is initially filled to a volume of 25.0L at 353 K and a pressure of 2575 mm Hg. What volume of gas will the balloon contain at 1.35 atm and 253 K?
What is the osmotic pressure of a solution made from dissolving 90.0 g of glucose, rm C_6H_{12}O_6, in 650 mL of water at 14.0{^circ}C.
Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.
Calculate the molar mass of a vapor that has a density of 6.735 g/L at 13°C and 825 torr.
A rubber balloon was inflated with helium gas and floated in the air. The next day, the balloon was somewhat smaller and no longer floated.
What is the boiling point of a solution of 30.20 g of ethylene glycol, HOCH2CH2OH, in 88.40 g of phenol?
A camera falls from a blimp that is 485 m above the ground and rising at a speed of 16.8 m/s. Find the maximum height reached by the camera with respect to the ground. The acceleration of gravity is 9.8 m/s2
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.)
If the reaction of 2.50 g of aluminum with 2.50 g of oxygen produced 3.50 g of aluminum oxide, What is the % yield of the reaction?
RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
An aqueous antifreeze solution is 40.0% ethylene glycol, C_2H_6O_2, by mass. The density of the solution is 1.05 g/ml. Calculate the molality of the ethylene glycol.
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