The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

Rate equations

I’m really confused by this question and can’t understand why in the mark scheme it says you would measure out 10 cm^3 of each solution as surely when you do that the concentration would be 0.3 not 0.1 requiredB7263CE9-2788-4273-8B8A-3C280DFAEEF8.jpg.jpeg638A8237-1D77-48CF-A2E3-4134A30EE206.jpg.jpeg
When it says dilute each solution does it mean to dilute it to 0.1 mol dm^-3
Original post by Hannahkisley
I’m really confused by this question and can’t understand why in the mark scheme it says you would measure out 10 cm^3 of each solution as surely when you do that the concentration would be 0.3 not 0.1 requiredB7263CE9-2788-4273-8B8A-3C280DFAEEF8.jpg.jpeg638A8237-1D77-48CF-A2E3-4134A30EE206.jpg.jpeg


If you add 10ml of each solution then you end up with 30ml, i.e. you have increased the volume by a factor of 3 for each substance, without altering the number of moles of each. Hence the new concentrations will be 1/3 the original.

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you