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What volume does 1 mole of an ideal gas occupy at 273 K and 1 atm?

• 1 24 L
• 2 11.2 L
• 3 22.4 L
• 4 1 L

According to Boyle's law, if the pressure of a gas is doubled at constant temperature, its volume:

• 1 Doubles
• 2 Halves
• 3 Stays the same
• 4 Becomes four times

For a first order reaction, the half-life:

• 1 Depends on the starting concentration
• 2 Is independent of the starting concentration
• 3 Doubles each half-life
• 4 Is zero

Which is the expression for Kc of the reaction N2O4 <-> 2NO2?

• 1 [NO2] / [N2O4]
• 2 [N2O4] / [NO2]^2
• 3 [NO2]^2 / [N2O4]
• 4 [NO2]^2 x [N2O4]

In a buffer solution, pH = pKa when:

• 1 [A-] is twice [HA]
• 2 [A-] equals [HA]
• 3 [HA] is zero
• 4 The solution is neutral

Hess's law says that the enthalpy change of a reaction:

• 1 Depends on the path taken
• 2 Is the same whether it takes place in one step or several
• 3 Is always negative
• 4 Depends only on the catalyst

Which solution has the highest boiling point at the same molality?

• 1 Glucose
• 2 Urea
• 3 Sodium chloride
• 4 Calcium chloride