Chemistry S2 Final Exam Review

Front

What happens to the moles of solute when a solution is diluted?

Back

The moles of solute remain the same.

Front

What happens to the liters of solvent when a solution is diluted?

Back

The liters of solvent increase.

Front

What happens to the molarity of a solution when it is diluted?

Back

The molarity of the solution decreases.

Front

How many moles of water are produced from 5.40 moles of hydrogen in the reaction 2 H₂ + 1 O₂ → 2 H₂O?

Back

5.40 moles H₂O.

Front

What is the complete electron configuration for chlorine?

Back

1s2 2s2 2p6 3s2 3p5.

Front

What is the definition of a solvent?

Back

A solvent is the substance that dissolves the solute.

Front

What is the definition of a solute?

Back

A solute is the substance that is dissolved.

Front

What is the formula to calculate heat energy (Q) required to change the temperature of a substance?

Back

Q = mass × specific heat capacity × change in temperature.

Front

How many joules of heat are needed to raise the temperature of 35.0 grams of aluminum from 36°C to 67°C?

Back

972 J.

Front

What is the specific heat capacity of aluminum?

Back

0.90 J/g°C.