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Question- How long will it take to produce 78.0 g of Al metal by the reduction of Al3+ ions in an electrolytic cell with a current of 2.00 amperes? ( Al: 26.98 g/mol)
Answer is 116 hrs, please show steps.
Please answer only if you are 100% confident
A sample of nitrogen gas is collected over water at a temperature of 23.0 degrees Celcius. What is the pressure of the nitrogen gas if atmospheric pressure is 785 mm Hg?
when steam condenses to liquid water 2.26kj of heat is released per gram. the heat from 168g of steam is used to heat a
11. In reverse-phase HPLC, the stationary phase is non-polar and the mobile phase is a polar solvent at neutral Ph. Explain which of the amino acids will move fastest on a reverse-phase HPLC column. Which will move slowest
The vapor pressure of a solution containing 53.6 g glycerin (C3H8O3) in 133.7 g ethanol (C2H5OH) is 113 torr at 400C. Calculate the vapor pressure of pure ethanol at 400C
The acid dissociation constant, Ka, for phenol, C6H5OH, is 1068X10^-10. Calculate the pH of a 0.75 M C6H5OH solution.
A solution is prepared by dissolving 1.00 g of Compound B in enough water to create 250.0mL of solution. What is the molarity of Compound B in this solution?
The observed rate constant(k-observed) for one of the trials was measured to be 0.00400 s^-1. If the concentration of hypochlorite was fixed at 0.134 M, calculate the specific rate constant (k) for the trail.
A hydrocarbon, K, adds one mole of hydrogen in the presence of a platinum catalyst to form n-hexane. When K is oxidized vigorously with potassium permanganate, a single carboxylic acid, containing three carbon atoms, is isolated.
A student determined the molar mass of an unknown non-electrolyte compound by measuring the freezing point depression of an aqueous solution of the compound.
when ionic compounds crystallize from a supersaturated solution the crystallization front typically travels at a
Draw Fischer projection formulas of the major product of the reaction between E-2-methyl-3-hexene and aqueous Br2.
a) Write the balance equation for the reaction. b) How many moles of O2 are needed to completly react with 4.0 mol of C2H6O? c) If a car produces 88 g of CO2, how many grams of O2 are used up in the reation
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