I am stuck on this question: 0.0345 grams of hydrochloric acid is reacted with 0.05 grams of ethene. 0.0022 grams of ethyl chloride is obtained. What is the percentage yield of ethyl chloride? Leave your answer to one decimal place.
because it's grams, i think. like when you work out concentration, its moles= concentration x Volume. but it can also be Mass= Concentration x Volume. it depends on the question. i think it could be the same for moles though.