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State the balanced, net-ionic equations for the cell reactions for the subsequent half-cell combinations at standard conditions. Be sure to consider direction of spontaneity.
A. Cu/Cu2+, Ag/Ag+
B. Ag/Ag+, Zn/Zn2+
C. Mg/Mg2+, Pb/Pb2+
D. Ni/Ni2+, Mg/Mg2+
E. Cu/Cu2+, Pb/Pb2+
There are four cadmium atoms and four tellurium atoms per unit cell. How many of each type of atom are there in a cubic crystal with an edge length of 5.00 nm?
A sample of 54.7 g of HCl gas is dissolved to make 1L of solution. What is the molarity of the solution?
A 1.33 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid.
Potassium permanganate, KMnO4, is a powerful oxidizing agent. The products of a given redox reaction with the permanganate ion depend on the reaction conditions used. In basic solution, the following equation represents the reaction of this ion wi..
The reaction is second order in and has a rate constant of 0.0123 at 25.0 . A reaction vessel initially contains 250.0 of 0.133 which is allowed to react to form the gaseous product.
Draw the valence electron structures (Lewis structures) for the following atoms: Magnesium, Carbon, Bromine, Neon.
Calculate the pH after the addition of 0.0048 mol of NaOH and Calculate the pH after the addition of 0.018 mol of HCl.
A xenon fluoride compound can be prepared by heating a mixture of Xe and F2 to a high temperature in a pressure- proof container made of nickel.
Write equations for the mechanism for saponification of methyl benzoate, begin with nucleophillic attack of hydroxide ion on the carbony group of the ester.
Taking 100 kg of the 20% feed solution as a basis, draw and label a flowchart of this process labeling both masses and volumes, and do the degree-of-freedom analysis. Calculate the feed ratio
the Williamson synthesis of the desired ether woudl favor one particular alkoxide ion-alkyl halide combination. Write the chemical equation for the formation of the favored alkyl halide, alkoxide ion, and ether.
The solubility of calcium sulfate is 0.67 g/L. Show the calculation of the Ksp for calcium sulfate (all steps including chemical equilibria must be correct for full credit)
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