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Explain what are the concentrations of OH- and H+ in a .00084 M Solution of Ba(OH)2 at 25 degrees Celsius. Presume complete dissociation
Calculate the [SCN] solution A, where 5.3 mL of 1.9x10^-3 M NaSCN is diluted to 42.0 mL with 0.1 M Fe(NO3)3. Next calculate the [FeSCN2+] in the solutions prepared by diluting volumes of solution A with 0.1 M Fe(NO3)3 to a final volume of 1.0101 mL..
determine at what temperature must a balloon be heated to have six litres volume consider that the balloon was at the
Energy in the amount of 421 J is added to a 69g sample of water at a temperature of 23.0 C. What will be the final temperature of the water?
In lab we are doing chemical kinetics. We started off with 0.7550 M of Oxalic acid and then added water and 0.1300 M of Permanganate. For the first trial, 5 mL of Oxalic acid was used, then 6 mL of water were added and then 1 mL of Permanganate we..
A sample of H2 gas (2.0 L) at 3.5 atm was combined with 1.5 L of N2 gas at 2.6 atm pressure at a constant temperature of 25 °C into a 7.0 L flask
a. For a weak acid with a pKa of 6.0, show how you would calculate the ratio of acid to salt at pH 5. b. Suppose you have just added 100 mL of a solution containing 0.5 mol of acetic acid per liter to 400 mL of 0.5 M NaOH. What is the final pH?
The initial concentrations of Pb2+ and Cu2+ are 5.20×10-2 M and 1.60 M, respectively. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V
A gas occupies a volume of 2.45 L at a pressure of 1.03 atm. What volume will the gas occupy as the pressure changes to 0.980 atm.
Calculate the change of volume of the cube at a depth of 1.000 km (disregarding the effects of temperature). Take the mean density of sea water as 1.03 g/cm3.
The pH of a 300 gram solution of NaOH is 12.97. The density of the solution is 1.10 g/mL. How many grams of NaOH are in the solution
Dissolving 4.64g of an impure sample of Ca carbonate in Hcl produced 1.09L Carbonate measured at 20 degree c at 747 mmHg. Calculate the % of mass of carbonate in the sample
Find the equilibrium partial pressures of ALL species if at the start of the reaction PCO = 2.69 atm and PCOBr2 = 2.05 atm. Round your answers to three significant figures. CO(g) + Br2(g) ? COBr2(g)
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