Unit 9 REV: Solutions, Concentration, & Acid/Base

Front

What is the pH range of a base?

Back

A base has a pH greater than 7.

Front

Define Molarity (M).

Back

Molarity is defined as the number of moles of solute per liter of solution.

Front

What color does phenolphthalein turn in a basic solution?

Back

Phenolphthalein turns pink in a basic solution.

Front

What is the dissociation equation for PbCrO4?

Back

PbCrO4(s) ↔ Pb²⁺(aq) + CrO₄²⁻(aq)

Front

What is the pH range of an acid?

Back

An acid has a pH less than 7.

Front

What happens to blue litmus paper in an acidic solution?

Back

Blue litmus paper turns red in an acidic solution.

Front

What is the formula for calculating Molarity?

Back

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

Front

What is the effect of a strong acid on pH?

Back

A strong acid will lower the pH significantly, often below 3.

Front

What is the physical state of PbCrO4 in its solid form?

Back

PbCrO4 is a solid (s) at room temperature.

Front

What does a pH of 10 indicate about a solution?

Back

A pH of 10 indicates that the solution is basic.