- #1
steven10137
- 118
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Hi all, I have 2 short questions, that have caused me trouble in my study.
Firstly,
What is generally considered to be a highly concentrated solution?
eg. 250mL acid in 10L water.
This is 250E-3/10 = 0.25/10 = 0.025 M.
Would that be considered a concentrated solution? as it seems very low ...
Secondly,
In a sample of ground water, iron in the form of Fe2+ was found to have concentration 9.00E-3 M. Assuming the density of water is 1.00 gmL-1, what is the concentration of Fe2+ in ppm?
Now I'm not really sure what is going on here, but given the Fe2+ has a molar concentration of 9.00E-3, surely there is a way to convert that to gL-1 and then to mg/kg (ppm solute/solvent form)?
am i correct?
(just need to be lead on the right track there ...)
cheers
Steven
Firstly,
What is generally considered to be a highly concentrated solution?
eg. 250mL acid in 10L water.
This is 250E-3/10 = 0.25/10 = 0.025 M.
Would that be considered a concentrated solution? as it seems very low ...
Secondly,
In a sample of ground water, iron in the form of Fe2+ was found to have concentration 9.00E-3 M. Assuming the density of water is 1.00 gmL-1, what is the concentration of Fe2+ in ppm?
Now I'm not really sure what is going on here, but given the Fe2+ has a molar concentration of 9.00E-3, surely there is a way to convert that to gL-1 and then to mg/kg (ppm solute/solvent form)?
am i correct?
(just need to be lead on the right track there ...)
cheers
Steven