Question

7. How many moles of sucrose are dissolved in 350 mL of solution if the solution concentration is 0.150 M?

Answer 1

Step-by-step explanation:

Molarity is an expression of the concentration of a solution. We define molarity as the relationship established between the amount of substance in the solute and the volume of a solution. It is expressed by the following formula:

M = n/V

where:

M = molarity (mol/L)

n = number of moles of the solute

V = volume of the solution

So the question tells us that sucrose is the solute.

To find out, we need to use the formula.

We have:

M = 0.150

n = we will find out

V = 350 mL = 0.35 L

So:

M = n/V

n = M*V

n = 0.15*0.35

n = 0.0525 moles

Answer: 0.0525 moles of sucrose