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Use the following cell to answer the questions: Cr / Cr3+ (1.00 M) // Ni2+ (1.00 M) / Ni. a) How many milligrams of Ni would be plated on the cathode if a current of 0.20 A is drawn for 2.8 hrs? mg Ni b) What is [Cr3+] when [Ni2+] has dropped to 10-4 M? [Cr3+] = c) What is the cell potential at the conditions described in Part b? E = V
Calculate the molar solubility of AgBr in a 1.00 M aqueous solution of ammonia. Then calculate the solubility of AgBr in pure water, and compare the two solubilities. (Ksp for silver bromide is 7.7x10 -13 and Kf for Ag(NH3)2+ is 1.6x10^7)
Predict the product that is formed when methyl 2-(3-oxocyclohexyl)acetate undergoes
It is estimated that about 0.02 m3 of pyrite (density 5 g/cm3) has "disappeared" from a rock face that is adjacent to a lake (original pH=6.7) with dimensions 100 m x 40 m x 10 m.
What is the boiling point of a solution made by adding 6.79 g of magnesium chloride to 242.0 g of water?
In a combustion process in which a specified percentage of excess air is used, and in which CO is one of the products of combustion, will the analysis of the resulting exit gases contain more or less oxygen than if all the carbon had burned to CO2
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
When heated, the DNA double helix separates into two random-coil single strands. When cooled, the random coils form the double helix
At the end of the process, the pressure is 2.50x10 to the 6 Pa. Calculate the final temperature of the gas. Calculate q, w, deltaU, and deltaH for this process.
Give the shape of each molecule in problem and describe whether each molecule is polar or non polar and tell whether each is soluble or insoluble in water
Design an experiment to determine the density of irregular shaped object. a. Include an introduction describing the calculations that will need to be made.
What current is required to depostit, on the cathode, 5.00 g of gold/hr from a solution containing a salt of gold(III)
Draw the structure of the major product that is formed when the compound shown below is treated with the following reagents:
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