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How many oxygen atoms are present in a water sample containing 4.5 x 1023 hydrogen atoms?
Wiki User
∙ 10y ago
You must mean; how many grams of O ( one atom oxygen )
1.23 X 10^24 molecules H2O (1 mole H2O/6.022 X 10^23)(1 mole O/1 mole H2O)(16 grams/1 mole O)
= 32.7 grams of oxygen
Wiki User
∙ 13y ago
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What is the ratio of hydrogen to oxygen in this sample of four water molecules?
2:1 ratio. There would be eight atoms of hydrogen and four atoms of oxygen.
How many grams of carbon dioxide are present in a sample containing 80.0 moles of CO2?
80,0 moles of CO2is equal to 3 520,8 g.
A sample of water contains 3.6 moles of hydrogen atoms How many molecules of water are present in this sample?
3.6 moles hydrogen atoms (1 mole water/2 mole H)(6.022 X 1023/1 mole water molecules) = 1.1 X 1024 molecules of water =======================
A 134.50 g sample of aspirin is made up of 6.03 g of hydrogen 80.70 g of carbon and 47.77 g of oxygen What is the percent by mass of each element in aspirin?
4.5 % hydrogen 60% carbon 35.5% oxygen to find say, the percentage of hydrogen, take the amount of hydrogen(6.03) and divide it by the total amount(134.50) with this new answer (.044832714) move the decimal over twice, and round to the highest tenths place. i hope this helps you.
If 9.0g of water contain 1.0g of hydrogen what mass of oxygen is contained in 36g of water?
What an odd question. Well, whatever. The question shows that 1/9 of the solution is hydrogen. So it must be said that 8/9 is water (assuming the sample comprises solely of hydrogen and water)36/9 = 44 x 8 = 32So 32g of it is oxygen.
What is the ratio of hydrogen to oxygen in this sample of four water molecules?
2:1 ratio. There would be eight atoms of hydrogen and four atoms of oxygen.
How hydrogen detected in the carbon and hydrogen test?
To test for hydrogen in the given substance, a dry sample is needed. Burn it in excess of oxygen. If the vapour turns white copper sulfate into blue colour, it indicates that there is water in present in the vapour. Hence, the organic compound contains hydrogen.
In a sample of silicon dioxide the mass of oxygen is 60g. what is the mass of silicon present?
No
How do you distinguish between nitrogen oxide and oxygen using a chemical test?
Use a sample of pyrogallol (C6H6O6) in the sample followed by a combustion reaction. This compound absorbs oxygen present.
How many oxygen an hydrogen atoms are in bleach?
Household bleach is an aqueous solution of sodium hypochlorite, so it's NaClO in H2O. In order to tell you how many oxygen and hydrogen atoms are in a sample of bleach, I would need some more information like volume and molarity (concentration.)
How many grams of carbon dioxide are present in a sample containing 80.0 moles of CO2?
80,0 moles of CO2is equal to 3 520,8 g.
Is carbon monoxide an element or a compound mixture?
Pure carbon monoxide is a compound, containing equal numbers of carbon and oxygen atoms in any sample of the compound.
How is a sample oxygen different from a sample of a water?
Oxygen is just O and water is H2O
Is hydrogen peroxide a mixture or a pure substance?
H2O2 is a covalent compound, as a pure sample of it cannot be split into other separate compounds by physical means. However, the bottle labeled "Hydrogen Peroxide" in your medicine cabinet is actually a mixture (it's about a 3% solution of hydrogen peroxide the compound in water).
What happens when oxygen is prepared from hydrogen peroxide without adding a catalyst?
Hydrogen peroxide purchased from a store or science supply house has been stabilized so that expected loss due to spontaneous decomposition into oxygen and water is less than 3% per year. Without adding a catalyst, you will have to wait a very long time to collect the oxygen from a sample of hydrogen peroxide.
A sample of water contains 3.6 moles of hydrogen atoms How many molecules of water are present in this sample?
3.6 moles hydrogen atoms (1 mole water/2 mole H)(6.022 X 1023/1 mole water molecules) = 1.1 X 1024 molecules of water =======================
A 134.50 g sample of aspirin is made up of 6.03 g of hydrogen 80.70 g of carbon and 47.77 g of oxygen What is the percent by mass of each element in aspirin?
4.5 % hydrogen 60% carbon 35.5% oxygen to find say, the percentage of hydrogen, take the amount of hydrogen(6.03) and divide it by the total amount(134.50) with this new answer (.044832714) move the decimal over twice, and round to the highest tenths place. i hope this helps you.
