Bio, GC, & OC question help please

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Troyvdg

Dentistry not Debtistry
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For the bio question inorganic molecules could be 1st because they make up ammonia, water, etc.. so obviously they had to be there first? lol I remember getting this question right but idk if what I said was correct! haha
 
why'd you take the questions down? i also needed some help with those problems...can you put em back up please?

the main question i remember is the one about a solution of X with a given density Y with something like 20% by weight of X...what is the molarity? My question is...on that type of problem, i can get molaRITY but what do you do for molaLITY? what's the conversion for L and kg?? isn't it just 1L equals 1 kg???

thanks
 
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