6.3 Molarity

Question 1

Finding the concentrations of substances in mixtures typically expressed as:

Answer 1

Molarity (unit = molar)

Question 2

Solutions

Answer 2

Homogenous Mixtures

Question 3

What substance is present in greatest amount of moles?

Answer 3

SOLVENT

Question 4

What substance is present smallest amount of moles?

Answer 4

SOLUTE

Question 5

SOLUTE + SOLVENT =

Answer 5

SOLUTION

Question 6

More solute particles PER volume of solution gives a a more…

Answer 6

CONCENTRATED solution

Question 7

Fewer solute particles per volume of solution gives a more…

Answer 7

Dilute solution (LESS concentrated)

Question 8

What are the different ways a solution can be expressed?

Answer 8

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

Mass Percent = mass of solute/ mass of solution * 100

Parts Per Million (ppm) = mass of solute/ mass of solution * 1 x 10^6 ppm

Question 9

Molarity is the number of moles of solute in exactly…

Answer 9

1 liter (1L) of the solution.

Question 10

A higher molarity indicates…

Answer 10

A higher concentration (more moles of solute per volume of solution).