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What is the volume of a solution of 5 M NaOH that must be added to adjust the pH from 4 to 9 in 100 mL of a 100 mM solution of phosphate buffer (0.2 pt)?
As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 75.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
Calculate the concentration of the ions and the molar solubility and the solubility product constant for the Salt at 25 degree c. Show the balance reaction.
AgCl is a sparingly soluble salt, with a solubility of about 10-5 M in pure water. Adding KCN increases the solubility of AgCl because: CN- reacts with Ag+ to make a soluble complex.
Using Hess' Law, calculate the enthalpy of formation for C3H8(g) using the following thermodynamic data. C(s) + O2(g) ----> CO2(g) delta H =-393.5 kj/mol
The procedure calls for cautions addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reac..
an unavoidable side reaction of alkyl halides with active metals which lowers the yield of grignard reagents is called
Add electron dots and charges as necessary to show the reaction of potassium and bromine to form an ionic compound.
Once the solvent front reaches the top of the chromatographic paper,solvent begins to evaporate from the top edge of the paper, and the remaining solvent continues to move up the paper.
the final temperature of both the water and metal is 32.81 degrees C. The specific heat of water is 4.184j/g*K. What is the speciic heat of the metal?
How are conditions of pressure and temperature, at which two phases coexist in equilibrium, shown on a phase diagram? By a line separating the phases by the endpoints of the line segment separating the phases
Calculate all the preceeding concentrations and the weight of biomass, {CH2O}, produced. Assume no input of atmospheric CO2.
What is the molality of chromium(III) chloride in a solution prepared by dissolving 75.2 g chromium(III) chloride hexahydrate (CrCl3· 6H2O) in 250.0 g of water.
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