2007-01-08 07:05:01 · 6 answers · asked by furlong 29 1 in Science & Mathematics ➔ Chemistry
It would be bit heavier. The balanced equation for the synthesis of magnesium oxide is 2Mg + O2 >>> 2MgO. If you reacted 5g of Mg completely with oxygen, your product MgO would weigh about 8.29 g.
2007-01-08 07:53:49 · answer #1 · answered by AskerOfQuestions 3 · 1⤊ 0⤋
No, it would not be heavier when mixed with oxygen. However, if it were to be made to combine with oxygen (e.g. by burning), then, yes, it would be heavier. Each mole of magnesium would produce one mole of magnesium oxide:
Mg(s) + ½ O2(g) ----> MgO(s)
Since the molar mass of magnesium is 24 and that of magnesium oxide is 40, that means that 24g of magnesium would produce 40g of magnesium oxide, or 5g of Mg would produce 8·33g of MgO, i.e. a 67% increse in mass.
2007-01-08 16:45:55 · answer #2 · answered by deedsallan 3 · 0⤊ 0⤋
One mol Mg reacts with one mol O to yield one mol MgO.
24.31g Mg reacts with 15.99g O to yield 40.30g MgO.
Divide throughout by 5:
5g Mg reacts with 3g 0 to yield 8g MgO;
It would be approximately 3g heavier.
2007-01-08 16:03:42 · answer #3 · answered by BB 7 · 1⤊ 0⤋
Yes, as it will combine to make magnesium oxide (MgO).
2007-01-08 15:14:08 · answer #4 · answered by teachbio 5 · 1⤊ 0⤋
yes like pinacolada with coke n choke with butter hehe
2007-01-08 15:08:24 · answer #5 · answered by x-..lauren..-x 2 · 0⤊ 0⤋
see answer by deedsalla could not have put it better
2007-01-09 08:14:29 · answer #6 · answered by Daedalus 3 · 0⤊ 0⤋