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### Topic: Meaning of this  (Read 665 times)

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#### pleasehelpthankyou

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##### Meaning of this
« on: October 31, 2020, 07:52:37 AM »
In a table I found for solubility values it says "the solubility is 100 times the mass of anhydrous compound soluble in a unit mass of water", can anyone tell me what is meant by this, in particular when it talks about the "unit mass of water". I would be so grateful for any response.

#### AWK

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##### Re: Meaning of this
« Reply #1 on: October 31, 2020, 08:55:04 AM »
In which units do you most often express solubility.
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#### pleasehelpthankyou

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##### Re: Meaning of this
« Reply #2 on: October 31, 2020, 08:58:51 AM »
in g/100g, however the values seem to be a percentage and some are greater than 100, therefore I wondered whether this had something to do with "unit mass" that it mentions.

#### AWK

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##### Re: Meaning of this
« Reply #3 on: October 31, 2020, 09:20:05 AM »
Quote
in g/100g
Well, you already have a unit mass of water.

What to do when most of the solubilities are small, like 0.02, 0.3, etc. Maybe multiply by some number (eg. 100, 1000) so that all values ​​are integers?
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#### pleasehelpthankyou

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##### Re: Meaning of this
« Reply #4 on: October 31, 2020, 11:21:57 AM »
Thanks for the reply. What I am struggling to understand is what "unit mass of water" essentially means?

#### Corribus

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##### Re: Meaning of this
« Reply #5 on: October 31, 2020, 03:35:59 PM »
grams of [whatever] per 1 gram of water (or whatever units you like).
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

#### jackandersonaj1

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##### Re: Meaning of this
« Reply #6 on: November 05, 2020, 08:27:32 AM »
in g/100g

#### AWK

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##### Re: Meaning of this
« Reply #7 on: November 05, 2020, 08:57:33 AM »
in g/100g
grams od substance per a 100 g unit mass of water
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