Pre-Ap Chem Midterm

Front

What is molarity?

Back

Molarity is defined as moles of solute per liters of solution.

Front

What is the molar mass of NaOH?

Back

The molar mass of NaOH is 40.00 g/mol.

Front

What do atoms with high electronegativity do?

Back

Atoms that have a high electronegativity hold on to their electrons more tightly.

Front

Which atom has the largest atomic radius?

Back

Francium has the largest atomic radius.

Front

What is the ideal gas law constant (R)?

Back

R = 0.0821 L⋅atm∕mol⋅K.

Front

What is the formula for calculating molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

What is the relationship between pressure and volume in gases?

Back

Pressure and volume are inversely related (Boyle's Law): P1V1 = P2V2.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in an atom's nucleus.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic).