Help with dilution?
I have this concentration - 20mg of salt in 50ml of water. If I dilute it in 1 liter of water - what's the mg/l of salt I'm left with?
I have this concentration - 20mg of salt in 50ml of water. If I dilute it in 1 liter of water - what's the mg/l of salt I'm left with?
Lôn
Favorite Answer
20mg in 50 ml
becomes 20mg in 1050 ml (1.05 litres)
This is 20000/1050 = 19.05 mg per litre.
Trevor H
You have exactly the same mass of salt . That is 20mg
The final solution will be 20mg/L.
That is assuming you meant to say that you dilute the 50mL to 1.0L
But if you do as you seem to say - add a further 1.0L water to the 50mL
Then
Final volume = 50mL + 1.0L(1,000mL) = 1050mL
20mg in 1050mL solution = 20mg*1000mL / 1050mL = 19mg/L