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Calculate the equilibrium pH of a solution containing 5x10^-4 M Na2CO3 and 5X10^-4 M NaHCO3.
How many grams of the element nickel are contained in 10.0 g of a 10.2 wt % solution of nickel sulfate hexahydrate, NiSO4 . 6H2O (FM 262.85)?
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) ? CaCO3(s) ?H = -178.4 kJ (a) Is this reaction exothermic or endothermic?
At 100 degrees C, the vapor pressure of water, methanol, and ethanol are 760, 2625, and 1694 torr, respectively. Which counpound has the highest normal boiling point.
For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50 kJ/mol. What is Ea for the reverse reaction in kJ/mol?
How many grams of patassium chlorate decompose to potassium chloride and 524 mL of O_2 at 128C and 752 torr?
The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol.
Al(OH)3 + 3HCl ---> AlCl3 + 3H2O Determine the moles of acid neutralized if a tablet contains 0.200 mol Al(OH)3
Calculate the new volume of a 7.0Liter balloon if the pressure is reduced from 1.0 atmosphere to 0.80 atmosphere (assume the temperature remains constant)
A sample of neon effuses from a container in 79 seconds. The same amount of an unknown noble gas requires 161 seconds.
What is the percentage chlorine by mass in the organic compound?" and got an answer of 37.1% Cl, which im pretty sure is right.
If someone can go in depth into finding the Ka to this and then guiding me through the rest of the steps, I'd be eternally grateful
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