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Explain what volume (in milliliters) of 0.100 M NaOH must be added to a 0.120 L solution of 0.015 M glycine hydrochloride pKa1 = 2.350, pKa2 = 9.778 to adjust the pH to 2.37?
At 25 C the density of water is 0.997 g/cm^3, whereas the density of ice at -10 C is 0.917 g/cm^3. if a plastic soft-drink bottle (volume=250mL) is filled with pure water capped and then frozen at -10 C what volume will the soild occupy
a container contains oxygen neon and helium whose partialpressure are 100 torr 300 torr and 200 torr respectively. what
If you are to construct the molecular orbital energy diagram of ScBr, do you think the energy levels will be closer to the atomic orbital energy of Sc or Br. Why.
At 850K the value of the equilibrium constant K(pressure) is 0.2970. If a sealed vessel contains an initial reaction mixture of [N2] = 0.0150M, [H2]= 0.0200M and N2H2= 0.000100M what will [N2H2] be when equilibrium in reached.
you wish to prepare 100ml of a buffer solution that is .025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution
the rate constant for a reaction is 7.7 x 10^-3 s^-1 at 25 C, and the activation energy is 33.6 kj/mol. what is k at 75C
The chemical mechanism of the reaction involves transfer of phosphoryl group to the enzyme, forming a phospho-enzyme intermediate: a His residue is phosphorylated, and H2O hydrolyzes the P enzyme intermediate. Determine the type of mechanism
What is the pH of a solution that is 0.30 M in aniline, C6H5NH2, and 0.15 M in anilinium chloride, C6H5NH3+Cl-? (Kb = 4.2 × 10-10 for aniline) Aniline ionizes as: C6H5NH2 + H2O C6H5NH3+ + OH-
Calculate the following values for a 0.0150 M solution of NaH2A. and Calculate the following values for a 0.0150 M solution of Na2HA.
Determine the pressure inside a container of a gas connected to an open-end manometer filled with CCl4, has the density = 1.594 g/cm3,
Write the molecular formula for a compound with the possible elements C, H, N & O that exhibits a molecular ion at M+ = 96.0571. Molecular formula (In the order CHNO, with no subscripts)
Specific compounds are named in the boxes below and the functional group part of the name is in boldface. For each boldface functional group, draw an expanded structural formula.
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