General Chemistry Answers

6NaNO3 + Al2O3 → 2Al(NO3)3 + 3Na2O

If 82.1g NaNO3 reacts with 100g Al2O3, what is the limiting reactant?

Calculate the initial concentration of Fluoroacetic acid in a solution that has the same pH as a 0.00865 M solution of HCl

Determine the spontaneity of the dissociation of ammonium nitrate (NH4NO2), the compound used in

cold packs:

NH4NO3(s) NH4+(aq) + NO3−(aq)

ΔΗ° = 25.7 kJ/mol; AS = 0.108 kJ/K•mol

a. Calculate the AG for the reaction at 25°C.

b. Does the reaction lead to an increase or decrease in the disorder of the system?

c. Is the reaction spontaneous or nonspontaneous at 25°C?

Consider the following generic chemical equation: 2A + 5B ➡️ C + 3D. If you react 4 units A with 10 units of B, which statement is true?

How many liters of solution are needed to make a 1.66M solution containing 2.11 moles of potassium permanganate

Why you should never heat a volumetric flask or add hot solution to it

in the sun hyrdogen atoms undergo nuclear fusion to produce Helim and -1.7 x 10^9 kj/mol of He how much energy can be obtained from 1.00 kg of helium

 Canadian (CANDU) nuclear reactors produce energy by nuclear fission of uranium-235. 

in + 235U → Kr + 14Ba + 3 in 

If the molar enthalpy of fission for uranium-235 is -1.9 x1010 kJ/mol, how much energy can be obtained from the fission of 1.00 kg of pure uranium-235? 

A sample of bauxite ore contains 7.71 x 1024 molecules of aluminum

oxide, Al20g. How many moles of aluminum oxide are in the sample?

What is the molar mass of magnesium