lawerence

I am writing a synthesizing essay on invisible man by Ellison and on go tell it the mountain by James Baldwin. Please tell me what you think of my thesis. I am writing about racism( this how I am trying to connect the two books) African Americans have alw...

What is the least amount of words that a short story can be. Is it suppose to be in past tense?

if .5 g of a KHP containing unknown mixture requires 7 mL of NaOH to reach the endpoint of titration, what mass of the unknown should be weighed out to consume 20 mL of the NaOH. If anyone could help me start this that would be appreciated. Thanks!

Citric acid is a triprotic acid with Ka values of 3.14, 5.95, and 6.39. Estimate the pH of a 0.15 M solution of a monosodium salt

Calculate the molar concentrations of all phosphate species in H3PO4 in a solution with pH = 2.25, given that the concentration of all four forms of phosphate total 15 mM.

A 20.00 mL sample of a .1000M unknown acid solution is titrated with .1000M NaOH. Given that the acid is diprotic and its pKa's are 1.90 and 6.70 a.) Estimate the pH after 10 mL of base are added b.) estimate the pH after 20 mL of base are added c.) estim...

Calculate the pH at the stoichiometric point of a titration of 25.0 mL of 0.120 M benzoic acid with 0.0230 M NaOH

In 20 s, the concentration of NO2 decreases from 450 mM to 320 mM in the reaction 2 NO2 --> 2 NO + O2 (a) Determine the rate of reaction of NO2 (b) Determine the rate of formation of O2 (c) What is the unique rate of the reaction?

A drug is eliminated from the body in a first-order reaction with a rate constant of 7.6 x 10-3 / min at 37 oC. A patient is given 20 mg of this drug. What mass of the drug remains after 5 hours?

When Solid NaHCO3 was placed in a rigid container witha volume of 2.5L and heated to 160 degrees Celsius, the equilibrium was reached. 2 NaHCO3(s) -> Na2CO3 (s) + CO2(g) + H2O(g) At equilibrium, some of the starting material remains and the total pressure...

Pka of Ch3CO2H is 4.75 What is the equilibrium constant of the equation: Ch3Co2 (aq) + H20 (l) --> CH3CO2H(aq) + OH-(aq)

I have no clue how to start this any help would be appreciated!