For the reaction 2Na+2H2o—>2NaOH+H2 how many Grams of sodium hydroxide are produced from 3.0 moles of water?
回答 (3)
2017-12-18 4:05 pm
Balanced equation for the reaction :
2Na + 2H₂O → 2NaOH + H₂
Mole ratio H₂O : NaOH = 2 : 2 = 1 : 1
No. of moles of H₂O reacted = 3 mol
No. of moles of NaOH produced = (3 mol) × 1 = 3 mol
Molar mass of NaOH = (23.0 + 16.0 + 1.0) g/mol = 40.0 g/mol
Mass of NaOH produced = (3 mol) × (40.0 g/mol) = 120 g
2Na + 2H₂O → 2NaOH + H₂
Mole ratio H₂O : NaOH = 2 : 2 = 1 : 1
No. of moles of H₂O reacted = 3 mol
No. of moles of NaOH produced = (3 mol) × 1 = 3 mol
Molar mass of NaOH = (23.0 + 16.0 + 1.0) g/mol = 40.0 g/mol
Mass of NaOH produced = (3 mol) × (40.0 g/mol) = 120 g
2017-12-18 12:33 pm
120 g NaOH
2017-12-18 12:29 pm
How much Sodium?
收錄日期: 2021-04-18 18:01:09
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