In depth Triple Chemistry (3b)

  • Created by: HarveyCB
  • Created on: 06-10-18 14:38
What is concentration
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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Other cards in this set

Card 2

Front

What is a solute

Back

The substance that's dissolved

Card 3

Front

What is a solvent

Back

Preview of the front of card 3

Card 4

Front

What is a solution

Back

Preview of the front of card 4

Card 5

Front

How do you calculate concentration using mass

Back

Preview of the front of card 5
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