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# Calculating the concentration in gdm-3 and mol dm-3. watch

1. Hello everyone. My question is below:

A solution of sodium hydroxide contains 1.00g of sodium hydroxide in 250cm3 of solution. M(NaOH)= 40 gmol-1.

Calculate the concentration of sodium hydroxide in:

a) g dm-3

b) mol dm-3

Please provide a detailed solution. Thanks
2. (Original post by dajjal619)
Please provide a detailed solution. Thanks
What have you tried to do so far? Apart from just ask us.
3. (Original post by Pigster)
What have you tried to do so far? Apart from just ask us.

Hi, i tried converting into moles and other stuff. and what all. but i cant seem to figure it out. but trust me i tried. Can you help me? i would be very grateful.
4. (Original post by dajjal619)
Hi, i tried converting into moles and other stuff. and what all. but i cant seem to figure it out. but trust me i tried. Can you help me? i would be very grateful.
Post your working. What is it you can't figure out?

The concentration is the number of moles/mass of substance in 1 dm3.
5. a) Covert 250cm3 into dm3 then do 1 gram divided by the converted volume (dm3)

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