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Given the following proposed mechanism, predict the rate law for the overall reaction. A2 + 2 B → 2 AB (overall reaction) MechanismA2  ⇌ 2 AfastA + B → ABslow 

Calculate the pH of a 0.800 M CH3NH3Cl solution. Kb for methylamine, CH3NH2, is 

A solution containing CaCl2 is mixed with a solution of Li2C2O4 to form a solution that is 3.5 × 10-4 M in calcium ion and 2.33 × 10-4 M in oxalate ion. What will happen once these solutions are mixed? Ksp (CaC2O4) = 2.3 × 10-9.

Use the polar plot below to answer the following questions.  1. [1] is the least sensitive microphone array to sound directly behind the patient 2. [2] is the lease sensitive microphone array to sound directly to the sides of the patient    

Identify the solute with the highest van’t Hoff factor.

How does a telecoil work? What is a benefit of using a telecoil?

Which option will increase volume for soft speech that is too soft?

A researcher calculated a confidence interval for the mean amount of time it took a car to stop from 60 miles per hour. His results were (6.9 seconds, 7.8 seconds) with 99% confidence. Determine the proper notation and the value of both the point estimate and margin of error for the mean stopping time. WE USE GREEK LETTERS FOR PARAMETERS (population), ROMAN LETTERS FOR STATISTICS (sample)

Diana takes a state driver’s license test and receives a score of 70. The mean score on this state exam is 76 with a standard deviation of 5. Calculate Diana’s z-score and determine if her score would be considered unusual.   Hints: z =

A father records the amount of milk remaining in all 1 gallon cartons on their shopping day. Which of the following vocabulary words would be correct to describe the variable “The amount of milk remaining in a 1 gallon carton”? Hint: is the variable countable? measurable ?