How many moles of hydrogen molecules (h2) are present in 9 x 1023 molecules of hydrogen?

1,5 moles of H₂

Explanation:

Avogadro's number is defined as a constant that relates the number of particles presents in 1 mole. This number is 6,022x10²³.

Thus, 9x10²³ molecules of hydrogen are:

9x10²³ molecules of hydrogen × (1 mole / 6,022x10²³molecules) =

1,5 moles of H₂

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answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.