Asked by Loren
When 24g of Magnesium reacts with oxygen gas the only product is magnesium oxide. If 40g magnesuim is produced how much oxygen was consumed?
Answers
Answered by
DrBob222
2Mg + O2 ==> 2MgO
You must mean if 40 g magnesium OXIDE are produced and you must be using 24 for the atomic mass Mg and 40 as molar mass MgO. In those circumstances.
mols Mg = 24/24 = 1 mol and that will produce 40 g MgO.
mols O2 consumed = 40g MgO x (1 mol O2/2 mol MgO) = 40 x 1/2 = 20 mols O2.
Then grams O2 = mols x molar mass.
You must mean if 40 g magnesium OXIDE are produced and you must be using 24 for the atomic mass Mg and 40 as molar mass MgO. In those circumstances.
mols Mg = 24/24 = 1 mol and that will produce 40 g MgO.
mols O2 consumed = 40g MgO x (1 mol O2/2 mol MgO) = 40 x 1/2 = 20 mols O2.
Then grams O2 = mols x molar mass.
Answered by
Tshepang
THE PRODUCT OF MAGNESIUM +OXYGEN LOOK LIKE IS (soft /hard) IN A FORM OF A (LIQUID /SOLID /GAS) AND IS (WHITE /BLACK /YELLOW) IN COLOUR
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