Module 6.2 Solutions & Molarity

Question 1

When a compound dissolves in another material it forms a homogeneous mixture called a ?

Answer 1

Solution

Question 2

Solutes

Answer 2

component in a solution that is in smaller amount

ex. salt water solution, less salt so it is the solute

Question 3

Solvent

Answer 3

component in a solution that is in larger amount

ex. salt water solution, more water so it is the solvent

Question 4

Molarity formula = ?

Answer 4

M=
grams (solute) / molecular weight (solute)
———————————————————
ml (solution) / 1000

Question 5

Molarity

25 grams of NaCl (MW=58.5) dissolved to make 550 ml solution

Answer 5

M= 25g / 58.5mw = 0.427.. / (550/1000) = 0.777