From my understanding all you are doing is converting liters to grams. It says you have one leader of hydrogen peroxide. 1 liter equals 1000 grams. And if it is asking how many grams are in 1 liter hydrogen peroxide then the answer would be 1000 grams
I'm sorry but you didn't put an excerpt, so how do you expect anyone to answer your question? In the future please have all of the materials so people can actually answer your question. Thanks - DK
1. moral that the poem is trying to teach
2. mood that the poem conveys