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suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.
A) would this error have affected the calculated equivalent mass of the unknown acid? how?
B) Would this error have affected the experimentally determined pKA of the unknown acid? how?
There are several slip systems that can be active in olivine (orthorhombic). Dislocation glide is easiest at high temperature in the (010)[001] slip system
The standard free energy of activation of a reaction A is 73.9kJ/mol-1 (17.7 kcal mol-1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol-1 (2.39 kcal mol-1) mo..
reacts completely with a volume of F2(g) to produce 2.0 L of ClF5. what volume of F2(g) reacted completely?
How much PV work is done (in kilojoules), if 90.0 g of ethylene and 125 g of HCl are allowed to react at atmospheric pressure and the volume change is -71.9 L?
A solution containing 80. G of NaNO3 in 75 g of H2O at 50°C is cooled to 20°C. How many grams of NaNO3 remain in solution at 20° C?
A flask that can withstand an internal pressure of 2525 torr, but no more, is filed with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst?
How many grams of Na3PO4 will be needed to produce 350ml of a solution that has a concentration of Na+ ions of 0.900.
A bag of potato chips contains 595 ml of air at 25.0 degrees celsius and a pressure of 775 mm Hg.Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 424 mm Hg and the temperature is 10.0 degrees ..
what is the volume change when 2 kg of water at 6.8 MPa and 93 Celsius expands to 1.6 bar
Write the balanced net ionic equation for the following reaction in basic solution. Be sure to show phase labels in your final answer
A gas expands and does P-V work on the surroundings equal to 345 J. At the same time, it absorbs 191 J of heat from the surroundings. Calculate the change in energy of the gas.
If a sodium hydroxide solution were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions and potassium ions, which ion(s) would remain in the supernatant?
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