If tin reacts with sodium hydroxide according to the reaction:
Sn + NaOH → Na₂SnO₂ + H₂,
How many moles of hydrogen are liberated from the complete reaction of 3.47 × 10⁴ kg of tin metal in excess sodium hydroxide?

Question

Quizplus · Accepted Answer

The molar mass of tin (Sn) is approximately 118.71 g/mol. First, convert 3.47 × 10^4 kg of tin to grams, which is 3.47 × 10^7 g. Then, calculate the moles of tin: 3.47 × 10^7 g / 118.71 g/mol ≈ 2.92 × 10^5 moles. According to the balanced reaction, 1 mole of tin produces 1 mole of hydrogen, so 2.92 × 10^5 moles of tin will produce 2.92 × 10^5 moles of hydrogen.

If Tin Reacts with Sodium Hydroxide According to the Reaction