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You have 0.554g sample that is a mixture of oxalic acid, H2C2O4 and another solid that does not react with sodium hydroxide. If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture? Oxalic acid and NaOH react according to the equation H2C2O4 (aq) + 2 NaOH(aq)--->NaC2O4(aq) + 2 H2O (l)
what is the volume of the hydrogen gas (at25oC and 100KPA) needed to produce 51.1g of ammonia?
Silver iodide is an extremely insoluble yellow solid. What would you expect to observe when (CH3)3Cl and AgNO3
Calculate the mass of pure silver that when heated from 12.0 degrees celcius to 15.2 degrees celcius it required 1.25 kj of energy
Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equibrium, based on the quantities of starting materials you used and a value of 4.2 for the equilibrium constant
suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.
100 mL of 0.200 M HCl is titrated with 0.250 M NaOH .What is the pH of the solution at the equivalence point?Express the pH numerically.
Steam locomotives in the 1950s burned coal containing sulphur which released sulphur dioxide into the atmosphere. Scrubbers could have removed SO2 from flue gases by reaction with calcium carbonate,
Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
While in Europe, if you drive 111 per day, how much money would you spend on gas in one week if gas costs 1.10 per liter and your car's gas mileage is 34.0 ?
Draw a detailed mechanism for the FeBr3-catalyzed reaction of the ethylbenzene with bromine, and show why the sigma complex (and the transition state leading to it) is lower in energy for substitution at the ortho and para position than it is for ..
The collision (frequency) factor remains the same, by how much an enzyme lower the activation energy of the reaction in order to achive 1 x 10 ^5 fold increase in the reaction rate
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