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Question- Why is sodium borohydride preferred over lithium aluminum hydride for the reduction of vanillin? What is the mechanistic reason, not the safety or practicical reason?
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In combustion studies of the use of H2 as an alternative fuel, HO is sometimes formed in flames by the reaction, H(g) + 1/2 O2(g) HO(g)
Citric acid H3C6H5O7 take place in plants. The acid is added to beverages as well as candy. An aqueous solution is 0.710m in citric acid. The density is 1.049g/mL.
Calculate the entropy change for vaporization of 18 g of H2O. The molar enthalpy of vaporization for water is 44 kJ/mol and the boiling point
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
DNA Coiling and Topoisomerase, draw a circular DNA molecule that contains 3 negative supercoils. In this DNA molecule, make L = 250 and T = 253. Don't draw the details here i.e., all 250 of the strand passages around each other.
a sample of 1.800 grams of octane c8h18 was burned in a bomb calorimeter whose total heat capacity 11.66 kjdegc. the
Problem- Which reactant and how many grams of it is left over after 16.0g of MnO2 and 30.0g HCl react according to the following equation
A mixture of 0.100 mol of CO2, 0.050 mol of H2, and 0.100 mol of H2O is placed in a 1.00 L vessel and reacts according to the reaction shown below. CO2 + H2 --> CO + H2O
Butane (C4H10) reacts with oxygen in the air to from carbon dioxide and water. how many moles of carbon dioxide can be formed from 1.25 mol of butane and excess oxygen?
Calculate the pH that results when the following solutions are mixed: 6.8 mL of 0.500 M sodium acetate and 15.2 mL of 0.350 M acetic acid.
nickel has a face-centered unit cell with all atoms at lattice points and an edge length of 352.4 pm. the density of
the active ingredient in aspirin is acetylsalicylic acid hc9h7o4 a monoprotic acid with ka 3.3 x 10-4 at 25 degrees c.
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