Answer:
9.2-g of ethanol
Explanation:
The question is asking for us to solve for the mass of ethanol given the moles of it.
We can do this by going from mol -> grams using the <u>molar mass of ethanol</u> (46.068g).
Start off with the moles given (0.20mol) and multiply it by the molar mass of ethanol (46.068g).
This would give the mass of 9.214-g, but since our question has only 2 significant figures, round off your final answer to the same number of sig. figs.
So your final answer would be 9.2-g of ethanol.
***Molar mass is calculated by adding the masses of each element (found in periodic table) by how many times they are in the molecules.
