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100.0g of Cl2O7 are mixed with excess of water obtaining 136.0g of periodic acid according to the following reaction. Determine the percent yield of HClO4.Cl2O7 + H2O ? 2HClO4
Methanol burns in oxygen to form carbon dioxide and water. 2CH3OH+3O2=2CO2+4H2O. Calculate the rxn of delta H, G & S at 25C
Calculate the change in entropy (in J/K) when a 67.9 g of water is heated from 14.8 ºC to 74.0 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)
Glycine, an amino acid, has the formula C2H5NO2. How many glycine molecules are in 50.0 mg of glycine? a. 7.50 x 101 b. 4.01 x 1023 c. 4.01 x 1020 d. 9.02 x 1023 e. 9.02 x 1020
If 66.5 ml of base is required to reach the second equivalence point, what is the concentration of the acid?
How do you calculate the force of water hitting a concrete cylindrical pole. The velocity of the water is 2 ft/s, the depth of the water is 10 ft, and diameter of the pole is 3 ft. So what would be the total force exerted on the pole by the water?
An unknown metal hypochlorite salt, M(ClO)2, is subjected to analysis by iodometric titration: the salt is dissolved in dilute sulfuric acid, treated with excess aqueous KI,and then titrated with Na2S2O3. The unknown metal ion(M2+)
Marble (calcium carbonate) reacts with hydrochloric acid solution to form calcium chloride solution, water, and carbon dioxide. What is the percent yield of carbon dioxide if 2.85 g of the gas is collected when 10.7 g of marble reacts?
describe the errors made by the following students in making molar solutions.nbspjames needs a 0.600 m solution of kcl.
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
Briefly explain whether the following procedural errors would result in either an incorrectly high or incorrectly low calculated percent Cu recovery for this experiment.
A 100.0 mg sample of a common organic compound containing C, H and S was burned in oxygen, forming 283.5 mg of CO2 and 48.4 mg of H2O. What is the simplest (empirical) formula of this compound
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min-1. How long will it take for the concentration of H2
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