I have some Che questions?

Question

A 22.4 L container of an ideal gas has a pressure of 1.0 atm. and a temperature of 273 degrees Kelvin. It contains Nitrogen, Oxygen and Carbon Dioxide. The partial pressure of the Oxygen is twice the partial pressure of the Carbon Dioxide. The partial pressure of the Nitrogen is twice that of the Oxygen. What is the partial pressure of the Carbon Dioxide?

2. An alloy is a mixture with metallic properties. (As opposed to a pure substance.)True or false?

3.Which of the following forces is present between all molecules even if it's not the only or the strongest intermolecular force

London Dispersion Forces (LDFs)

Hydrogen Bonding

Dipole to Dipole Forces

None are present in all molecules.

3. Which of the following should have the lowest boiling point?NH3?N2?HF?H2O?Na2S ?

4Which of the following has dipole-dipole as it's major attractive force.Na2S?HF?N2?H2O?None of these?

5.How much water must be added to 294 grams of H2SO4 to form a 6 molar solution of Sulfuric Acid?

Answer 1

1

p O2 = 2 p CO2

p N2 = 2 p O2

p N2 + p O2 + p CO2 = 1.0 atm

2 p O2 + p O2 + p CO2 = 1.0 atm

4 p CO2 + 2  p CO2 + p CO2 = 1.0 atm

7 p CO2 = 1.0

p CO2 = 0.143