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At volume of 0.200 M K2Cr2O7 will be required to oxidize the Fe2+ iron in 60.0 mL of .200 M FeSO4 solution?Cr2(O2-)7 + Fe2+ -->Cr3+ + Fe3+
In the dehydration of methylcyclohexanols, would it be advantageous to relux the reaction mixture instead of performing a distillation?
calculate the concentration of all soluble Hg(II) species. Which Hg(II) species is most prevalent? Assume there are no solids present, that the major ligands present are Cl- and OH-, and ignore activity corrections.
What are the respective concentrations (M) of Na and SO4 ions formed by dissolving 0.600 mol Na2SO4 in 135 mL water?
What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a mixture of acetone and ethyl acetate, CH3COOCH2CH3, at 30.00 °C, if the total pressure above the solution is 184.6 torr?
(FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
From this fact, we can deduce that a column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh approximately 14.7 lb. Given that air has an average molar mass of 28.97 g, calculate the number..
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508g/L at 25C and 721mmHg?
Calculate the pressure (in atm) exerted by 1.00 mole of acetylene at 125°C in a 20.0-liter container. The van der Waals constants for acetylene are: a = 20.0 L2 • atm/mol2, b = 0.100 L/mol.
What wieght of glycine (pka1=2.4, pka2=9.6) and what volume of 0.5 N(normality) HCl would be necessary to make 100 mL of 0.2 M buffer pH 2.4?
In 0.1592 M solution, a weak acid, HA, is 7.11% ionized. Calculate the ionization constant for the weak acid.
What would be the synthesis for my chaclone synthesis if 3-nitrobenzaldehyde were to react with 4-bromoactylphenone
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
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