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Ineedhelpwchem
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Help Quick I have a test

Post by Ineedhelpwchem »

Using reference table G

1) How many grams of KClO3 are needed to saturate 50 grams of water at 90 degrees C?

2) If 60 grams of NaNO3 are dissolved in 100 grams of water at 20 degrees C, how many additional grams of NaNO3 are needed to saturate the solution at 60 degrees C?
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ChenBeier
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Re: Help Quick I have a test

Post by ChenBeier »

There is no reference table G.
Ineedhelpwchem
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Re: Help Quick I have a test

Post by Ineedhelpwchem »

table g.gif
table g.gif (37.99 KiB) Viewed 1806 times
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table g.gif
table g.gif (37.99 KiB) Viewed 1806 times
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ChenBeier
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Re: Help Quick I have a test

Post by ChenBeier »

Read the curve.
In 1. case the intersection of the curve of KClO3 at 90 °C will be at 52 g. The question asks for 50 g water so its about the half 26 g.
In 2. case the intersection at 60 ° C of NaNO3 is at 125 g . 60 g is already in, so add 65 g more.
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Re: Help Quick I have a test

Post by Ineedhelpwchem »

Thank you!
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