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You would like to add DAP to a 1500 gal fermenter of Cabernet Sauvignon to raise its YAN level to 250ppm N. Resolute its current level of YAN to be 120ppm N. If each gram of DAP adds 0.21 gram of N to the must, explain how much DAP is needed?
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
Determine the pH at the equivalence (stoichiometric) point in the titration of 52.8 mL of 0.537 M HNO2 by 0.350 M LiOH. The Ka of HNO2 is 4.3 x 10-4.
The pH of a 0.500 solution of an aqueous weak acid (HA) is 2.30. Calculate the Ka for the weak acid.
What is the pH of a 0.16 M solution of oxalic acid, H2C2O4. The Ka1,2 values of oxalic acid are 5.6 x 10-2 and 5.4 x 10-5. For a weak polyprotic acid, it is usually OK to assume the hydronium ion concentration, and hence the pH, results predominan..
The following organic chemicals are used during the oxidation of 9-hydroxyfluorene to fluorenone briefly explain how each chemical listed below is taking part during the chemical reaction.
Hydrochloric acid HCL, completely ionizes when dissolved in water. Calculate the PH of a solution containing
Draw and label a cell consisting of Bi(s), Bi(NO3)3 (aq), V(s), VCl2 (aq), salt bridge, and a wire where the Bi side undergoes reduction and the V side undergoes oxidation. Write the half reactions, balanced cell reaction where V is the reduced sp..
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is quinoline,
Calculate the initial rate of a first-order reaction if the concentration of reactant is 0.63 M and the half-life is 6.9 s
when a mixture of 13.5 grams of c2h2 and 13.5 grams of o2 isignited the combustion produces co2 and h2o. write a
When 1 mol of HF is added to 1kg of water, the freezing point decreases by 1.9 C, but when 1 mol of HBr is added, the freezing point decreases by 3.7 C. Which is more highly separated into ions, HF or HBr
Give a definition of the ?outer. Explain what structural features of the solvent contribute to the value of this term.
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