A student dissolves 20 g of potassium chloride in 100 cm3 of water in a beaker. What is the concentration of the solution in g/dm3?
Question
A student dissolves 20 g of potassium chloride in 100 cm3 of water in a beaker. What is the concentration of the solution in g/dm3?
Solution
To calculate the concentration of a solution in g/dm3, you need to know the amount of solute (in grams) and the volume of the solvent (in cubic decimeters).
Here's how you can calculate it:
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First, convert the volume from cm3 to dm3. There are 1000 cm3 in 1 dm3, so 100 cm3 is equal to 0.1 dm3.
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Then, use the formula for concentration which is: Concentration = Amount of solute (g) / Volume of solvent (dm3)
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Substitute the given values into the formula: Concentration = 20 g / 0.1 dm3
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Solve the equation to find the concentration. The concentration of the solution is 200 g/dm3.
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