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Calculate the pH of the buffer solution based on the known Ka value for the acetic acid. (ka for acetic acid = 1.8 x 10^-5). The buffer solution is composed of: 20.00mL of 0.100M NaOH 40.00mL of 0.100M Acetic Acid
what concentration of hcl will have a ph of 3.0? and if sufficient naoh is added to the hcl the change the ph to 4.0
describe how you would prepare 1.00l of 0.75 m barium hydroxide solution starting with 6.00 m barium hydroxide
determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1
The reaction described in Part A required 3.50L of calcium chloride. What is the concentration of this calcium chloride solution
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case.
One mole of He is heated from 200 degree C to 400 degree C at a constant presure of 1 atm . Given that absolute entropy of He at 200 degree C is 810 J/K/mole and assuming He is a perfect gas
describe the basic steps involved in gravimetric analysis. how does this procedure help us determine the identity of a
Several oxidation reductions take place. List three examples of oxidation reduction reactions that are involved. Show what is oxidized what is reduced, and indicate which enzyme (E1, E2, E3) is involved.
upon decomposition one sample of magnesium fluoride produced 1.65 of magnesium and 2.57 of fluorine. a second sample
Which isomer of 1-bromo-3-isopropylcyclohexane reacts faster when refluxed with potassium tert-butoxide, the cis isomer or the trans isomer? Explain your reasoning and draw the structure of the expected product from the faster reacting isomer.
When 2.848 grams of sulfur is dissolved in 50.0 ml of CS2 (density 1.263 g/ml), the solution boils at 46.54 C. what is the formula for sulfur
Calculate the number of moles of NH3 present in solution when 9.5ml of 0.500 M NaOH is used to back-titrate an aqueous solution of Cu(NH3)4SO4xH2O to which 35.00ml of 0.500 M HCL has been added.
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