How many moles of hydrogen gas contained in 9.03x1023?

Answer 1

Given/Known:

1mole of H2 = 2.01588g H2

1mole of H2 = 6.022 x 1023 molecules H2

1) Convert molecules of H2 to moles of H2 by doing the following calculation.

9.4 x 1025 molecules H2 x (1mol H2/6.022 x 1023 molecules H2) = 156mol H2

2) Convert the moles of H2 to mass in grams of H2.

156mol H2 x (2.01588g H2/1mol H2) = 314g H2

Answer 2

9.03 X 1023 atoms/molecules H2 (1 mole H2/6.022 X 1023)

= 1.50 moles hydrogen gas

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Answer 3

9.4x1025 molecules of H2 contain 312,18 g hydrogen.

Answer 4

3.12 g of h2

Answer 5

This mass is 489 g.