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Question- A 75.5 mL aqueous solution contains 0.320 mol of KOH and is 20.0 % by mass KOH. Calculate the density (kg/m3) of the solution.Illustrate the density computation in details
A key step in the metabolism of glucose for energy is the isomerization of glucose-6-phosphate (G6P) to fructose-6-phosphate (F6P) as shown below.
If I add enough water to the above buffer to make the total volume 1.00 L, what's the new pH. How many milliliters of 0.25 M HCl will be needed to change the pH of the dilute buffer by 1 pH unit
Describe the preparation of 1 liter of a 0.75M acetate buffer, pH 4.50, starting from a 1.50 M solution of acetic acid and solid KOH pellets, M.W.=56 (pKa=4.75)
Water is about 15% denser than oil. What implication does this difference have on seabirds and other animals that swim
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm . What is the radius of a gallium atom
Compute the heat of vaporization of methanol using the normal boiling point of 64.6 'C. Explain the vapor pressure of methanol at 25.0 'C is 0.188 atm.
Explain what acids cause acidic precipitation. Define what are the primary pollutants that give rise to them. Explain what are their main anthropogenic sources
Consider a sample that is a mixture composed of biphenyl, benzoic acid and benzyl alcohol. predict the order of elution oc the components in this mixture. assume that the chromatography uses silica column and the solvent system is based on cyclohe..
which cation will precipitate first. What minimum concentration of Na2SO4 is required to cause the precipitation of the cation that precipitates first
Hydrogenation of a monounsaturated fatty acid yields a saturated fatty acid. Oleic acid is a monounsaturated fatty acid. Predict the product of its hydrogenation:
the molar heats of combustion of three hydrocarbon gases arech4 methane- 890.0 kjmolc2h6 ethane- 1560.0 kjmolc3h8
For a particle in a one-dimentional box, calculate the probability that the particle will be found in the middle third of the box: L/3 less than or equal to x less than or equal to 2L/3.
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