I guess nobody will help me with what "part water" means??
If you want clarifying on that is it for example say
1g compound and 1g water would be 1part compound and 1 part water?
I'll take a site or ANYTHING that can help me with this on what this means...
Can ANYBODY help me out?
6 answers
Yes, on a w/w basis, each is one part. You have to be careful with parts, sometime it is w/w, sometime w/v
But what would 1part compound and 1 part water mean?
Would it refer to 1g compound and what amount water?
I don't know what what "parts water" means in terms of grams or volume =(
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Merck Index ex.
Sodium Sulfate
solubility listed is: Sol in ~3.6 parts water
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Would it refer to 1g compound and what amount water?
I don't know what what "parts water" means in terms of grams or volume =(
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Merck Index ex.
Sodium Sulfate
solubility listed is: Sol in ~3.6 parts water
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Try to find another source for the solubility. When I get confused about notations/conventions in some source I always try to find alternate sources. Also, you can look up a well known solubility (like NaCl )in the source you are using and compare with the known value to decipher the notation.
Thankies Count Iblis, I think I'll do that =D
Christina--
Don't make this so difficult.
solubility
1 part compound+ 3.6 parts water.
1 g compound + 3.6 g water (if it's w/w)
1 g compound + 3.6 mL water (if it's w/v). It makes little difference which definition you choose for the about sign in front of the 3.6 means it is approximately that solubility. And as I said before, 1 g in 3.6 grams is approximately 1 g out of 5(if we round 1 + 3.6 = 4.6 to 5.0) = about 20%.
Liquid compounds often are reported as v/v so that would be 1 mL compound + 1 mL water if water is the solvent. So a definition in parts can be w/w, w/v, or v/v.
Don't make this so difficult.
solubility
1 part compound+ 3.6 parts water.
1 g compound + 3.6 g water (if it's w/w)
1 g compound + 3.6 mL water (if it's w/v). It makes little difference which definition you choose for the about sign in front of the 3.6 means it is approximately that solubility. And as I said before, 1 g in 3.6 grams is approximately 1 g out of 5(if we round 1 + 3.6 = 4.6 to 5.0) = about 20%.
Liquid compounds often are reported as v/v so that would be 1 mL compound + 1 mL water if water is the solvent. So a definition in parts can be w/w, w/v, or v/v.
I don't want to make it difficult but reporting it as 1part compound and 1 part water on my chart in my lab book it's kind of not acceptable.
Okay I appreciate your commenting on my post Dr.Bob =)
Okay I appreciate your commenting on my post Dr.Bob =)
1 answer