Concentrations of Solutions (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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What does concentration measure?
What does concentration measure?
How much solute in a certain volume of solvent
High vs low concentration solutions
High vs low concentration solutions
High has more solute; low has less solute
Common unit for concentration
Common unit for concentration
g/dm³ (grams per cubic decimetre)
Convert 1 dm³ to cm³
Convert 1 dm³ to cm³
1000 cm³
Concentration formula (g/dm³)
Concentration formula (g/dm³)
25 g NaCl in 1 dm³ - concentration
25 g NaCl in 1 dm³ - concentration
25 g/dm³
Concentration formula (mol/dm³)
Concentration formula (mol/dm³)
0.5 mol in 2 dm³ - concentration
0.5 mol in 2 dm³ - concentration
0.25 mol/dm³
When to use g/dm³
When to use g/dm³
When mass of solute is known
When to use mol/dm³
When to use mol/dm³
When amount of solute measured in moles