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Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
(a) 0.0 mL
(b) 20.0 mL
(c) 25.0 mL
(d) 40.0 mL
(e) 50.0 mL
(f) 100.0 mL
A grad student made the news for all the WRONG reasons a few years ago when he synthesized a "nickel hydrazine perchlorate" compound (but didn't give any more detailed information) on a scale 1000 times larger than what his lab advisor told him to..
Exactly 100 mL of 0.19 Mnitrous acid (HNO2) are titrated with a 0.19 M NaOH solution. Calculate the pH for the following. (a) the initial solution
What is the ratio of the enantiomeric products? b) What name is given to a mixture of enantiomers present in the ratio determined in part (a)?
When 5.00 × 1022 molecules of ammonia react with 4.00 × 1022 molecules of oxygen, how many grams of nitrogen gas are produced? 4NH3(g) + 3O2(g) → 2N2(g) + 6H2O(g)
A sample of ammonia gas (NH3) is completley decomposed to nitrogen gas and hyrdogen gas. If the total pressure at the end of the reaction in 866mmHg
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What is the freezing point of a solution made by dissolving 352g of ethylene glycol C2H6O2 on 648 g of water the freezing point of pure water is 0.0C and kf of pure water is -1.86Cm?
By substituting two hydrogen atoms on the benzene ring with methyl groups, write line-angle formulas of all constitutional isomers. Name each isomer.
Calculate the total enthalpy change in the first stage and in both stages
How many grams of NaOH are in a 225.0 mL sample of a 2.5 M solution of NaOH? (Molar mass of NaOH is 40.0 g/mol)
Calculate the pH at the first equivalence point. d) How many mL base, total, must be added to achieve the 2nd equivalence point?
Molecular Mass by Freezing point Depression (Preliminary Lab).
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