How many moles of magnesium sulfate are dissolved in 5 dm3 of 0.5 mol/dm3 solution?2.5 moles5 moles0.25 moles0.5 moles
Question
How many moles of magnesium sulfate are dissolved in 5 dm3 of 0.5 mol/dm3 solution?2.5 moles5 moles0.25 moles0.5 moles
Solution
The number of moles of a substance in a solution can be calculated using the formula:
Moles = Molarity x Volume
Where:
- Molarity is the concentration of the solution in moles per decimetre cubed (mol/dm^3)
- Volume is the volume of the solution in decimetre cubed (dm^3)
Given:
- Molarity = 0.5 mol/dm^3
- Volume = 5 dm^3
Substituting these values into the formula gives:
Moles = 0.5 mol/dm^3 x 5 dm^3 = 2.5 moles
So, 2.5 moles of magnesium sulfate are dissolved in 5 dm^3 of 0.5 mol/dm^3 solution.
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