Three salt solutions are to be used in an experiment, a 0.5g/dm³ solution (solution 1), a 1.5g/dm³ solution (solution 2) and a 2.5g/dm³ solution (solution 3). Which solution will contain the fewest salt particles in a particular volume?
Answers
Answer:
solution forms when a solute dissolves in a solvent. The concentration of a solution is a measure of how 'crowded' the solute particles are. The more concentrated the solution, the more particles it contains in a given volume.
Calculating concentration
The concentration of a solution can be calculated using:
the mass of dissolved solute in grams, g
the volume of solution (or solvent) in cubic decimetres, dm3
The units for concentration can also be shown as g dm-3, but this means the same as g/dm3.
Worked example
8 g of sodium hydroxide is dissolved in 2 dm3 of water. Calculate the concentration of the sodium hydroxide solution formed.
concentration =
concentration =
concentration = 4 g/dm3
Answer:
Solution
Explanation:
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