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Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 4.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
Each carbon-oxygen bond is somewhere between a single and a double bond. 3.Each oxygen atom has a double bond 50% of the time 4. The actual structure of formate is an average of the two resonance forms
The reaction H2O2 --> H2O + O2 could be catalyzed by either MnO2 or beef liver, which contains the enzyme catalase. In either case, the catalyst
Complete and balance the following equations, and identify the oxidizing and reducing agents. MnO_4^-}(aq) + CH_3OH}(aq) -->Mn^{2+}}(aq) + {\rm HCO_2H}(aq) acidic \ solution})
The central atom has 4 electron domains. d) The central atom has 5 electron domains. e) The central atom has 2 electron domains.
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
what is the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. write none if no insoluble salt forms. a)AgNo3(aq) + Na2SO4(aq). b)KCl(aq) + Pb(NO3)2(aq). c)CaCl2(aq) + (NH4)3PO4(aq). ..
Sort the following transitions from an excited state to a ground state according to the series into which they fall. Drag the appropriate transitions to their respective bins of lyman series
So could you please explain how you can estimate the order of increasing melting points for the following compounds. Why is the estimate rather inaccurate
NH4NO3 absorbs 25.69KJ of heat per mole dissolved in water. In a coffee-cup calorimeter, 5.60 g NH4NO3 is dissolved in 100.0g of water at 22.0C(temp). What is the final temperature of the solution? Assume that the solution has a specific heat capa..
Calculate the ratio of dihydrogen phosphate to hydrogen phosphate in the blood at pH 7.4. The Ka = 6.3 x 10 -8 5. For a weak acid with a pKa of 6.0 calculate the ratio of conjugate base to acid at a pH of 5.0.
Calculate the pH at equivalence point when 40.0 ml of 0.50 M aniline is titrated with 30.0 ml of 0.67 M HBr. For aniline Kb=3.8x10exp
A mixture of two miscible solvents that may be used as the solvent for a recrystallization experiment would be which of the following
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