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Suppose that you are given a 0.700 M acetic acid solution and a 0.500 M sodium acetate solution. Determine the volumes of each solution required to prepare 160ml of a buffer with pH 4.65
A reaction is preformed in aqueous solution, and the temperature of the solution increases by 15.78 degrees celcius. Is the reaction exothermic or endothermic?
benzoic acid is a monoprotic weak acid with ka 6.30 x 10 to the 5 negative. what is the ph of a solution of benzoic
Alzarin yellow has a pH range of 10.1-12.1. What is its Ka. It is yellow at pH 10 ANd red at pH 12. What is the color of a solution with a pH 10.9 that has a few drops of alzarin yellow
Balance the following half reaction: HS(-) = S2O3(2-) AND calculate what the slope of the boundary between HS- and S2O3^2- is in a pe-pH diagram.
Which of these names and formulae do NOT match correctly?
When 33.4 mg of a compound is dissolved in 10.0 ml of water at 25 C the solution has an osmotic pressure of 558 torr. Calculate the molar mass of the compound.
A 7.0 liter balloon at room temperature (22 degrees celsius) contains hydrogen gas. If the balloon is carried outside to where the temperature is -3.0 degrees Celsius.
Enough of a monoprotic acid is dissolved in water to produce a 0.0193 M solution. The pH of the resulting solution is 6.31. Calculate the Ka for the acid.
calculate the energy levels of the -network in octatetraene c8h10 using the particle in the box model.a to calculate
A 4.60 g nugget of pure gold absorbed 288 J of heat. What was the final temperature of the gold if the initial temperature was 26.0°C? The specific heat of gold is 0.129 J/(g·°C).
solution containing 1.00 g of barium nitrate (199.33g/mol) is combined with 500 mL of a solution containing 1.00 g of sodium sulfate (142.03 g/mol)
a solution contains 10.0g of koh and 900.0ml of water. the volume of the solution is 904.7ml. what is the mass percent
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