Measuring solubility and concentration Flashcards
1
Q
What is concentration?
A
The amount of solute that is dissolved in a known volume of solvent. Moles per litre.
2
Q
How is concentration calculated?
A
C= n/v
3
Q
How can concentration be expressed?
A
Concentration in grams per litre (gL−1) = mass of solute in grams volume divided by (V) of solution in litres
4
Q
What is Grams per liter: g L-1?
A
The amount of grams per liter. Can be found by multiplying the concentration by the substance’s molar mass.
5
Q
What is ppm?
A
Parts per million = solute in ūg (10^-6) divided by amount of solution in ml
6
Q
How to calculate the concentration of chloride ions in MgCl2?
A
- Find the mole of the compound
- Multiply this mole by the number of ions of chloride
