ETHANOL (C2H5OH) HAS A DENSITY OF 0.80g/ml. IF A 10%(v/v) MIXTURE OF ETHANOL IN WATER WAS PREPARED HOW MANY GRAMS OF ETHANOL WOULD BE IN 100ML OF THE MIXTURE? (ASSUMING MIXED VOLUME IS THE SUM OF THE PARTIAL VOLUME)

Answer 1

PLEASE don't post in caps. All caps makes the post difficult to read.
10% v/v means 10 mL ethanol/100 mL soln.
So 10 mL = how many grams? mass = volume x density