Other Chemistry Answers

Calculate the pH of the solution obtained by adding 0.02 lit of 1 mol./lit nitrous acid
(pKa=3.34) to 0.04 lit of 0.5 mol/lit sodium nitrite solution.

t-test or student's - t & chisquare test

why do we find it useful to have two units for the amount of substance , the kilogram and mole ?

1) the volume of 6m HCL needed to prepare 1 lit of 0.5m solution will be?

2)how many gms of a dibasic acid (mol wt 200) should be present in 100ml of its aqueous solution to give 0.1(N) strength?

the instruction state, "weigh about 5 g sodium chloride".give the minimum and maximum amount of sodium chloride that would satisfy these instructions.

if mass percent of X in XO2 was 80 percent, how much will be X mass percent in XO?

1. On which side of an oxidation half reaction are the electrons?

2. On which side of a reduction half reaction are the electrons?

3. In a redox reaction, explain why the oxidizing agent undergoes reduction.

4. For each of the following reactions:

Write a balanced net ionic equation for the reaction.
Identify which reactant is oxidized and which one is reduced.
Identify which reactant is the oxidizing agent and which one is the reducing agent.
Write balanced half reactions for the oxidation and reduction.

Convert 4.5 x 10^6 kilometers to micro meters