Chemistry Second Semester Exam Review

The chemical formula of aspirin is C₉H₈O₄. What is the mass of 0.200 mol of aspirin?

• 22.5 g

• 5.4 g

• 80 g

• 36.0 g

Which intermolecular force is the strongest?

• Dipole-dipole

• London dispersion

• Hydrogen bonds

Which intermolecular force is the weakest?

• Dipole-dipole

• London dispersion

• Hydrogen bonds

How many grams are in 6.50 moles of H₂SO₄?

• 638 g

• 98.1 g

• 15.1 g

• 0.0663 g

How many particles are in 6.50 moles of H₂SO₄?

• 3.91 x 10²⁴

• 1.08 x 10^-23

• 9.26 x 10²²

• 638

Tags

NGSS.HS-PS1-7

If a salt dissolves in water, water serves as the

• Solute

• Solvent

• Solution

If a salt dissolves in water, salt serves as the

• Solute

• Solvent

• Solution

What does the triple point on a phase diagram represent?

• The pressure and temperature at which a liquid ceases to exist

• Equilibrium between the three states of matter

• Equilibrium between the three states of matter and six phase changes

• The pressure at which liquid ceases to exist

What is the balanced chemical equation for the following reaction: Ba(ClO₃)₂ → BaCl₂ + O₂

• Ba(ClO₃)₂ → BaCl₂ + 2 O₂

• Ba(ClO₃)₂ → BaCl₂ + 3 O₂

• 2 Ba(ClO₃)₂ → 2 BaCl₂ + 3 O₂

• 2 Ba(ClO₃)₂ → 2 BaCl₂ + 6 O₂

The kinetic molecular theory states that ideal gas molecules

• They are in constant random motion

• Have high densities compared with solids and liquids

• Exert forces of attraction and repulsion on each other

• Have mass and take up space