GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

Consider the reaction, B(aq) + H2O(l) → BH+(aq) + OH-(aq). I…

Consider the reaction, B(aq) + H2O(l) → BH+(aq) + OH-(aq). If the salt of BH+(aq) is added, how is the equilibrium constant affected?

Read Details

The first-order decomposition of N2O5 was studied at a parti…

The first-order decomposition of N2O5 was studied at a particular temperature and found to have a rate constant of 6.2 x 10-4s-1. What is the half-life for the decomposition under these conditions?

Read Details

A buffer is made by adding 0.300 mol CH3COOH and 0.300 mol C…

A buffer is made by adding 0.300 mol CH3COOH and 0.300 mol CH3COONa to enough water to make 1.000 L of solution. The pH of the buffer is 4.74. Calculate the pH of this solution after 15.0 mL of 4.0 M NaOH(aq) solution is added.

Read Details

If the equilibrium concentration (also known as the molar so…

If the equilibrium concentration (also known as the molar solubility) of CaF2 is 1.24 x 10-3M at 35 °C, what is Ksp at this temperature?

Read Details

Which would be correct expression of the solubility product…

Which would be correct expression of the solubility product constant, Ksp, for Fe(OH)3?

Read Details

If the pH of a solution is 6.27, which of the following stat…

If the pH of a solution is 6.27, which of the following statements is true?

Read Details

Consider the following hypothetical aqueous reaction: A(aq)…

Consider the following hypothetical aqueous reaction: A(aq) → B(aq). A flask is charged with 0.065 mol of A in a total volume of 100.0 mL. The following data are collected. Calculate the average rate of appearance for B in units of M/s between 20 and 40 seconds. Time (sec) 0 10 20 30 40 Moles of A 0.065 0.051 0.042 0.036 0.031

Read Details

What is the pH of a 0.050M solution of benzoic acid, C6H5COO…

What is the pH of a 0.050M solution of benzoic acid, C6H5COOH, which has a Ka = 6.3 x 10-5?

Read Details

What is the pH of a 0.075M solution of ethylamine, C2H5NH2,…

What is the pH of a 0.075M solution of ethylamine, C2H5NH2, which has a Kb = 6.4 x 10-4?

Read Details

From the following values for a calculated rate constant, wh…

From the following values for a calculated rate constant, which one would be for a second-order reaction?

Read Details

Posts pagination

Newer posts 1 … 43,591 43,592 43,593 43,594 43,595 … 76,222 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top