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Each of the Chapter Assignments are worth how many points?

A particular first-order reaction has a rate constant of [x] s -1 at [y] °C. What is the magnitude of k at [z] °C if    Numerical answer only.  Enter your answer in normal numerical format, with no units and three significant figures.

Calculate the mass in grams of chromium metal that can be plated out when a constant current of [y] A is passed through an aqueous solution containing Cr 3+ ions for [x] minutes?  Record your answer with the correct number of significant figures and the correct units.

Calculate the percent ionization of nitrous acid in a solution that is [x] M in nitrous acid. The acid dissociation constant of nitrous acid is 4.50 × 10 -4.  Record your answer with the correct number of significant figures and the correct units.

Write the nuclear equation for the alpha decay of Th.

Calculate ΔS°rxn for the following reaction. The S° for each species is shown below the reaction. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) S°(J/mol∙K)192.8205.2210.8188.8

How many milliliters of 0.120 M NaOH are required to titrate 50.0 mL of 0.0998 M formic acid to the equivalence point? The Ka of formic acid is 1.8 × 10-4.

Iodine-131 undergoes beta emission with a half-life of 8.02 days. If you start with [x] mg of the material, how long will it take for the amount of iodine-131 to drop to [y] mg?  Report your answer with 3 significant figures and the correct units.

What is the oxidizing agent in the redox reaction represented by the following cell notation? Mn(s) ∣ Mn2+(aq) ‖ Ag+(aq) ∣ Ag(s)

How many electrons are transferred in the following reaction? (The reaction is unbalanced.) You must balance the equation showing your written work to receive credit.  Co 3+(aq) + K(s) → Co(s) + K +(aq)