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Subsequent to 50.0 min, 32.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics?
a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.
Use balanced equations to determine whether either Fe(OH)2 or CuS has a different solubility with a change in pH:CuS changes solubility with changing pH. Fe(OH)2 does not change solubility.
a student prepares benzoic acid by hydrolying 6.47g of methyle benzoate (FW 136.15g/mol) using excess sodium hydroxide. If the student recovers 3.71g
What is the isotopic difference (in per mil) at 25degrees between gas, liquid, and solid phase for the elements carbon and sulfur. Show calculations
The mole fraction of KNO3 in an aqueous solution is .0194. The density of the solution is 1.0627 g/mL. Calculate the molarity of the solution.
Find the molecular mass of sucrose and determine how many molecules there are in 1kg of it.
determine the moles of product ( Fe for this reaction) made by both reagents. what is the limiting reagent?
A 55.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 27.6 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution
Powdered Iron is added to a solution of Iron III sulfate, what happens. Please provide a narrative explanation.
in a strongly acidic solution the amino acid lysine esists as the dication. as the pH is raised, what monocation is formed by the loss of a proton form the dication?
what is the minimum concentration of ammonia that should dissolve AgBr to produce a 0.01 M Ag(NH3)2+ solution?
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
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