An 8.925 g sample of a compound containing only carbon, hydrogen, and oxygen gives 9.258 g of carbon dioxide and 5.351 g of water after complete combustion of the sample in dioxygen. What is the mass percentage of hydrogen in the sample

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

56 moles of   lieter in chemistry

i think its 100

i hope this !