Calculate the amount of tris aminomethane
Question: Calculate the amount of Tris (hydroxlmethyl) aminomethane (Tris) necessary to make 100mL of a 0.100M Tris buffer that is equimolar in Tris-base(MW=121.1 g/mol) and Tris-HCl(MW=157.6g/mol).
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Calculate the change in molar entropy when 2.00 miles of ozone are compressed isothermally to one quarter of its original volume. Treat ozone as an ideal gas.
FInd the definition of cross-linking. How does cross-linking change the properties of a polymers
If a chemical reaction, A + B ---> C + D, is endothermic, what is the sign of ΔH for the reaction? Would the temperature recorded in the calorimeter well for such a reaction increase or decrease? Explain.
Question: What is the pressure (in atmospheres) of the gas inside the container connected to an open-end, mercury-filled manometer as shown in the picture? The atmospheric pressure is 0.95 atm.
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.
In a solution of NH3, the concentration of NH3 is 0.01 M, Kb is 1.8 x 10-5. What is the concentration of the hydroxide ion
Describe a procedure for measuring the density of a liquid such a t-butanol. Your only available tools are a graduated cylinder and a top loading balance.
Calculate the mass (in grams) of sucrose in 1.0 kg of a 0.25% sucrose solution.
A Certain compound has a half-life of 14 minutes at 25C. Its decomposition is a first order process. How much time does it take for a 12 mol sample of this compound decays to 1.5 mol? A: 22 min B:42 min C:25.5 min D:12 min E:18 min
Reaction of a single enantiomer of W produces a single enantiomer of Y as the only substitution product. X likewise reacts readily in water though at a slower rate than W; a chiral substitution product Z, C8H17OH, is again formed. Unlike W, howeve
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