A compound C, H,Oz is found to be 71.95% by-mass carbon, 12.08% by-mass hydrogen, and 15.97% by-mass oxygen. A separate experiment shows that the
molecular weight of C, H,O2 is 300.5 g/mol. Determine the molecular formula of the
compound (i. e., determine the values of the subscripts x, y, and z).

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.

16

explanation:

the marks go by 4s