Review for Chem 'Test 3b'

Front

How many grams of potassium nitrate (KNO3) are needed to react with 0.901 moles of sulfuric acid (H2SO4)?

Back

182 grams of potassium nitrate.

Front

Strong acids necessarily have _________ conjugate bases.

Back

weak.

Front

True or false: a neutral solution has equal amounts of H+ and OH-.

Back

True.

Front

According to the Brønsted-Lowry theory, what can an acid do?

Back

An acid can donate protons.

Front

What causes acid rain?

Back

Interaction of water vapor with sulfur oxides and nitrogen oxides.

Front

Define a strong acid.

Back

A strong acid is one that completely dissociates in solution, releasing all of its protons.

Front

What is the pH of a neutral solution at 25°C?

Back

7.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

pH is the negative logarithm of the hydrogen ion concentration.

Front

What is a conjugate base?

Back

A conjugate base is the species that remains after an acid donates a proton.

Front

What is the formula for calculating moles from grams?

Back

Moles = grams / molar mass.