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If all of the quantities stated actually reacted, the law of the conservation of mass shows that the mass of carbon dioxide produced would be 40 - 18 or 22 grams.
0.8 grams.
16 grams or 32 grams, depending on what you're looking at.The mass of one mole of oxygen atoms is about 16 grams, but oxygen gas exists as a molecule (O2) so 1 mole of (O2) is 32 grams.
340 grams
18 grams
67.5 grams of H2O
If all of the quantities stated actually reacted, the law of the conservation of mass shows that the mass of carbon dioxide produced would be 40 - 18 or 22 grams.
0.8 grams.
Also 10 grams.
Also 10 grams.
The mass of 2.000 mol of oxygen atoms is 32.00 grams.
The percentage of oxygen is 54,84 %.
16 grams or 32 grams, depending on what you're looking at.The mass of one mole of oxygen atoms is about 16 grams, but oxygen gas exists as a molecule (O2) so 1 mole of (O2) is 32 grams.
what is the mass in grams of oxygen, is needed to complete combustion of 6 L of methane?
If 20g of mercury oxide were heated, the combined mass of oxygen and mercury would be 20 grams.
First find the percentage by mass of oxygen in water. The formula for water is H2O, showing that water contains two hydrogen atoms for every atom of oxygen. The gram atomic masses of hydrogen and oxygen are 1.00794 and 15.9994 respectively. Therefore, the percentage of oxygen in water is 100{15.9994/[15.9994 + 2(1.00794)]} or about 88.8 %, to the justified number of significant digits; the ratio of the maximum mass of water that can be made from a given mass of oxygen is 1/0.888 or about 1.126; and the answer to the question is this number multiplied by the stated mass of oxygen, or 24.9 grams, to the justified number of significant digits.
I believe you would divide the kg by 88.8 to get 1%, then multiply by 100 to get the total mass. If you want it in grams then multiply by 1000. The answer ends up as 2759 grams. Feel free to correct me if you think I am wrong.