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Oxalic acid dihydrate (H2 C2 04). 2H20 (formula weight = 126 g/mol) is sometimes used to standardize NaOH solutions. How many grams of this acid will be required to titrate 45.0 mL of 0.18 M NaOH solution
solution of an unknown monoprotic acid with 23.68 mL of .9721 M NaOH results in a solution pH of 3.74 Calculate the Ka of the acid.
When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) ->2 NH3(g) + CO2(g) At a certain temperature the equilibrium pressure of the system is 0.318 atm. Calculate KP for the reaction.
A mixture of ammonia and oxygen is prepared by combining 0.290 L of NH3 (measured at 0.730 atm and 26°C) with 0.190 L of O2 (measured at 0.750 atm and 54°C). How many milliliters of N2 (measured at 0.740 atm and 100. °C) could be formed if the fol..
An acetate buffer has a pH of 4.40. Which of the following changes will cause the pH to decrease?
a flask contains 30mL of 0.16 M phosphate buffer that has a pH of 7.1. what volume of 0.06M NaOH should be added to increase
If 0.130 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
an empty flask has a mass of 123.4 grams. when the flask is filled with water, the mass is 211.6 grams. if 10 grams of zinc (density=7.14g/cm3) are added to the flask filled with water, what is the new mass of the flask?
A buffer contains significant amounts of acetic acid and sodium acetate. Write an equation showing how this buffer neutralizes added acid and added bases
The aluminum ion reacts with the hydroxide ion to form a precipitate of aluminum hydroxide. Calculate the concentration of aluminum ion to just begin the precipitation of aluminum hydroxide in a solution that has a hydroxide concentration of 1.0 x..
In order to produce 10000.0 kJ of energy, how many grams of oxygen must react?
For a general reaction order n, determine the rate equation, the variables to be plotted to obtain a graph with a linear slope equal to the rate constant k (or -k), and an expression for the ½ life
at 75 degrees celsius, a gas has a volume of 3.22 dm^2. What volume will it occupy at 75 k?
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