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Description of Quant problemsPrepare 1.00L of a pH~12 buffer with a total phosphate concentration of 0.050 M.You have at your disposal the following compoundsCompounds:H3PO4 Ka=7.11*10^-3 FW=97.9950NaH2PO4 Ka=6.34 * 10^-8 Fw=119.9769Na2HPO4= ka=4.22*10^-13 fw=141.9588Na3PO4 Fw=163.9407
Which two compounds would you use to prepare a buffer of ph~12 and how many grams of each of the two selected compounds would you need
A 0.020 F solution of succinic acid (pKa=4.20, pKa2=5.64) is buffered at pH 5. what fraction of the succinic acid is present as the amphiprotic form at this pH
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A reaction mixture at 175 initially contains 522 torr of NO and 421 torr of O2. At equilibrium, the total pressure in the reaction mixture is 748 torr. Calculate Kp at this temperature.
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A 12.0g sample of a gas has a volume of 5.25L at 29 degrees celcius and 764mmhg . If 2.7g of the same gas is added to this constant 5.25L volume and the temperature raised to 67 degrees celcius.
The average person generates about 2500 Kcal of heat a day. How many kilowatt-hours of energy is this? If walking briskly dissipates energy at 500 W, what fraction of the day's energy does walking one hour represent.
Explain the structure for 4-ethyl-2,3-dimethyl-2-heptene?
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