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Part A: What mass of Cu(s) is electroplated by running 11.5 A of current through a Cu^2+(aq) solution for 4.00 h? Express your answer to three significant figures and include the appropriate units. Part B: How many minutes will it take to electroplate 46.1 g of gold by running 5.00 A of current through a solution of Au+(aq)? Express your answer to three significant figures and include the appropriate units.
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range.
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL. Answer each of the following questions by selecting the correct choice.
Determination of Solubility Product of a Metal Hydroxide lab report .. what was the results and conclusion
The Party Guy, Mr. Balloon, is making animal figures out of long thin balloons that he twists into different shapes. Assume that the balloons are of uniform thickness.
Which element has the most atoms? 10 grams of neon, 16 grams of oxygen, 32 grams of selenium,
Make a new solution with a total volume of 10.0 mL and How many moles are contained in 500.0 mL of solution
Twenty-five milliliters of liquid nitrogen (density = 0.807g/mL ) is poured into a cylindrical container with a radius of 11.9cm and a length of 17.2cm . The container initially contains only air at a pressure of 760.0mmHG (atmospheric pressure) a..
Determine What is the percent by mass of sodium phosphate in a 0.142M Na 3 PO 4 (aq) solution? If it is given that it has a density =1.015g/mol.
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
Calculate the activation energy of this reaction in kJ/mol At what temperature would the half-life be 12.0 min?
an LC analysis with a 30.0cm column yields the tabulated data. what is the resolution between peaks A and B?
How many atoms are there in 0.663 moles of water?
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