The amount of a substance in a certain volume of solution

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What is a solute

The substance that's dissolved

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What is a solvent

The liquid in which something is dissolved

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What is a solution

A mixture made of a solute dissolved in a solvent

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How do you calculate concentration using mass

Mass of solute divided by volume of solution

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How do you increase concentration

By adding more solute

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How do you decrease concentration

By adding more solvent

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What units is concentration using mass given in

Typically, g/dm cubed

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What is uncertainty in measurements

When you repeat an experiment multiple times, you get a range of answers. You use them to calculate a mean, but the greater the range of your results, the greater the uncertainty

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What is precision in measurements

How detailed the measurement is (more decimal places, smaller units)

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What is accuracy in measurements

How close to the truth the answer is, so repeating an experiment and taking a mean will be more accurate

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What is another unit of concentration (besides g/dm cubed)

Mol/dm cubed

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How do you calculate concentration in mol/dm cubed

Amount of solute divided by volume of solution

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How do you convert concentration from g/dm cubed to mol/dm cubed

Concentration in g/dm cubed divided by the Mr

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How would you calculate the concentration of an unknown substance using the concentration of a known substance in a reaction in mol/dm cubed

Work out how many moles of the known substance you have, then use a balanced equation of the reaction to calculate the moles of the unknown substance, and use this to calculate concentration

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How would you calculate the concentration of an unknown substance using the concentration of a known substance in a reaction in g/dm cubed

Calculate the concentration in mol/dm cubed, and the Mr, then convert into g/dm cubed

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