cho cho 8,4 gam sắt tác dụng với dung dịch HCl loãng vừa đủ a Tính thể tích H2 thoát ra b Tính khối lượng muối thu được sau phản ứng C nếu dùng hết 200 mol dung dịch HCl thì nồng độ HCl là bao nhiêu

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

How many neutrons does an element have if its atomic number is 50 and its mass number is 166