how many hydrogen atoms are present in 2.84 moles of water
2 answers
2.84 moles x (Avogadro's #, molecules per mole) x 2 (atoms/molecule)
approximately 3.384 times 10 to the 24
(3,384,000,000,000,000,000,000,000)
(3,384,000,000,000,000,000,000,000)