How many molecules are there in 45.0 grams of CH ? I
How many molecules are there in 150.0 grams of CzHs?

There are 1.8021 ⋅ 1024 molecules of CH4 in 48 grams of CH4. To answer this question, you must understand how to convert grams of a molecule into the number of molecules. To do this, you have to utilize the concepts of moles and molar mass. A mole is just a unit of measurement. Avogadro's number is equal to 6.022 ⋅1023 molecules/mole. i think please dont complain to me if its wrong im sorry

Explanation:

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.