7.6 Reactions and Solutions

Question 1

what is unit 7 about

Answer 1

the need to deal with molar concentration in a quantitative manner in conjunction with balanced equations

Question 2

How do you determine the concentration of ions from a single salt after a reaction

Answer 2

Firstly… Determine the molarity

Secondly… Use the balanced dissociation equation to determine the concentration of each ion

Question 3

how do you determine the concentration of each ion after a reaction with two salt reactants

Answer 3

First write the dissociation equation for each substance and have a careful look at the types of ions formed

Determine the number of moles of each substance

Determine the number of moles of each ion

Determine the concentration of each ion

Question 4

What’s the other method to determine the concentration of each ion after a reaction with two salt reactants

Answer 4

Write the dissociation equation for each substance and determine which ions are present in the resulting solution

Use dilution factors to determine the final concentration(after mixing the two solutions together) of each substance

Using the dissociation equations, determine the final concentration of each ion