2007-09-22 03:20:19 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
2 H2 + O2 ===> 2 H2O
So, two moles of hydrogen gas makes two moles of water. That would be, with 100% conversion, 36 grams of water.
2007-09-22 03:30:06 · answer #1 · answered by Dave_Stark 7 · 0⤊ 0⤋
all of those problmes have an identical format so i will do in basic terms the 1st: initiate with what you be conscious of: 4.2 moles H2. then multiply by ability of the mole ratio so as to cancel the contraptions. then multiply by ability of the molar mass. so: 4.2 moles H2 * (2 mole Na / a million mole H2) * (22.9 g Na / a million mole Na) = 192.36 --> with 4 sig figs: 192.4 g Na
2017-01-02 12:50:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
molecular weight H2O = 18 g/mol
2 mol of H2 gives 1 mol of H2O
thus 18 grams of H2O
2007-09-22 03:29:10 · answer #3 · answered by Anonymous · 0⤊ 1⤋
it is 18 grams still.
2007-09-22 03:24:38 · answer #4 · answered by Anonymous · 0⤊ 1⤋