how many hydorgen molecules contain in 36 gm of water?

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how many hydorgen molecules contain in 36 gm of water?

2006-10-15 19:25:17 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

4 answers

36 g of water = 2 moles
1 mole of H2 in a mole of H20

2 moles

2006-10-15 19:37:28 · answer #1 · answered by feanor 7 · 0⤊ 0⤋

Molar Mass of water=18
36/18=2
1 mol H2 per H20
2 moles H2
multiply 2 by 6.02*10^23 to get number of molecules
ans=12.04*10^23 You can do all of these calculations with more sig figs if you want

2006-10-16 02:48:39 · answer #2 · answered by jvcc06 3 · 0⤊ 0⤋

find out the weight of one molicule and convert it to grams than times by 36.

2006-10-16 16:33:13 · answer #3 · answered by Me + Me = BANG! 2 · 0⤊ 0⤋

2 moles = 1.204 x 10^24 mlcls.

2 mole of ANYTHING!

2006-10-16 02:56:50 · answer #4 · answered by MrZ 6 · 0⤊ 1⤋