General Chemistry Answers

Calculate the standard entropy values for the following reactions at 25°C.

1. N2(g) + 3H2(g) --> 2NH3(g)

2. H2(g) + Cl2(g) --> 2HCl(g)

3. 2CO2(g) + O2(g) --> 2CO2(g)

4. 3O2(g) --> 2O3(g)

5. 2NH3 (g) + CO2(g) --> NH2CONH2(oq)H2O(i)

intermolecular force of Ammonia (NH3) and Benzene (C6H6)

Intermolecular force of Ethane (C2H6) and Mg^+2 ion

Intermolecular force of Propane (C3H8) and Na^+1 ion

Predict whether the entropy change is greater than or less than zero for each of the following processes.

1. Freezing water

2. sublimation of dry ice

3. dissolving sugar in water

Propane (C3H8) & Na^+1 ion intermolecular forces

KNO3 and H20 intermolecular forces

hand sanitizer recipe has an H2O2 concentration of 0.88molL-1. What volume of 9.8molL-1 H2O2 would be required to make up 500mL of the hand sanitizer.

determine the concentration of H2SO4 when 15.0ml of the acid was able to completely neutralize 22.0ml of a 2.00 mol/L solution of sodium hydroxide

A 3.95 g sample of a laboratory solution contains 1.10 g of acid. What is the concentration of the solution as a mass percentage?