Answer to Question #261270 in Chemistry for jay

Question

how many molecules of h2 are produced when 332 atoms of Na reacts?

Answer 1

2Na + 2H₂O = 2NaOH + H₂

1 mole of matter contains 6.02214076 × 10²³ of chemical units.

332 atoms of Na equal to: 332 / (6.02214076 × 10²³) = 55 x 10^-23 moles.

According to the equation, n (H₂) = 1/2 x n (Na) = 1/2 x 55 x 10^-23 = 27.5 x 10^-23 moles.

The amount f H₂ molecules equals to: 27.5 x 10^-23 x 6.02214076 × 10²³ = 166