Rockhurst 2024 Chemistry Review Second Semester

Front

What does 'n' stand for in the ideal gas law equation PV = nRT?

Back

n stands for the number of moles.

Front

What laboratory glassware is used for precise titration?

Back

A burette.

Front

How many sets of parentheses are needed for the problem: 'How many grams of H2O are needed to make 4.5 mol of HNO3?' (3 NO2 + H2O → 2 HNO3 + NO)?

Back

2 sets.

Front

What is the equation for Molarity (M)?

Back

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

Front

What does (aq) after NaCl(aq) mean?

Back

It means that NaCl is in solution.

Front

What is the definition of molar mass?

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

What is the formula for calculating the number of moles from mass?

Back

Number of moles = mass (g) / molar mass (g/mol).

Front

What is the principle behind titration?

Back

Titration is a technique used to determine the concentration of a solution by reacting it with a solution of known concentration.

Front

What is the significance of the ideal gas law?

Back

The ideal gas law relates pressure, volume, temperature, and number of moles of a gas, allowing for calculations involving gas behavior.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance being dissolved, while a solvent is the substance that dissolves the solute.