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you are titrating 75.00 ml of unknown concentration of hydrochloric acid with 0.649 M barium hydroxide. You add 38.72 ml of barium hydroxide to reach the neutralization point. a)write the neutralization reaction. b)what is the pH at the neutralization point? c)what is the concentration of the hydrochloric acid solution?
What is ?H in MJ for the combustion of 1.99 L of octane producing CO2(g) and H2O? The heat of combustion of octane is -5.45 x 103 kJ/mol.
Write the molecular, ionic, and net ionic equations for the combination of KNO3(aq) and BaCl2(aq)
The pH of a bicarbonate-carbonic acid buffer is 8.00. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
Acetaldehyde decomposes at 750 K: CH3CHO â†' CO + CH4. The reaction is first order in acetaldehyde and the half-life of the reaction is found to be 530 seconds. What is the rate constant for the reaction at this temperature?
Consider the steel tank whose volume is 42.0 L and which contains oxygen gas at a pressure of 18,000 kPa at 23° C. What mass of oxygen does the tank contain?
A solution containing AgNO3 is mixed with a solution of NaCl to form a solution that is 0.10 M in AgNO3 and 0.075 M in NaCl. What will happen once these solutions are mixed. Ksp(AgCl) = 1.77 x 10^-10
The concentration of an enzyme within a cell is extremely low relative to other material present, yet functions effectively in its metabolic role.
The addition of solid NaSO4 to an aqueous solution in equilibrium with solid BaSO4 will cause what? Ksp at 20 degrees C of BaSO4(s) = 1.5 x10^-9
How many Joules of energy are stored in 1 pound (454 g) of sucrose? (Assume: Pressure = 1 atm, Temperature = 25°C; the respective ?Hf° for the reactants and products can be found in the thermodynamic table linked above. Show your calculation
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
The inert pair effect is observed for : A) Group IIIA and Group IVA elements B) Group IVA elements C) Group IIIA elements D) group IIA elements E) group IA elements
you have a mixture of oxygen and argon in a 2.50 L container. You know that the oxygen has a mass of 3.44 grams. The total pressure of the gases is 1.86 atm, and their temperature is 22 degrees C.
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