[FONT=Geneva, Arial, Helvetica, sans-serif][SIZE=+1]if u have 78 grams of something and they want u to find percent yield. then why is it written 78 g over 78g/mole.....
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- Thread starter jd399
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Not sure if I understand your question properly, but every time they write something as g/m, they are referring to molar mass of the compound. In this case, the molar mass of the compound is 78g/1mole (meaning that 1 mole of the compound weighs 78gr). Now, if you have 78gr of a compound that has a molar mass of 78gr/mole, then you essentially have 1 mole of that compound. Why?
78gr of compound A x (1mole/78gr) = 1 mole ....You've essentially cancelled out the gr.
If this doesn't make sense, post the actual question so I can walk you through it and get the answer.
