how many grams is one mole of oxygen?
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One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.
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Oxygen gas is O2 . O2 has a molar mass of 32g/mol . ∴ There are 1.25 moles of O2 in 40g of oxygen gas.
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32 g of oxygen is two moles of oxygen atoms. That's approximately 2 x 6 ^23 oxygen atoms.
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There is a unique relationship between molar mass and atomic weight: Oxygen's atomic weight is 16.00 amu. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom!
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Well, one mole is equal to Avogadro's Number, or 6.02210 x 10^23 particles. Since you are not talking about the amount of oxygen atoms in 3 moles of O2, no extra multiplication is needed to compensate for that. 3 moles x (6.02210 x 10^23) O2 molecules per mole = 1.80663 x 10^24 O2 molecules.
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1. There are 16 grams of oxygen in 18 grams of water. We can see from the formula for water, H2O, there are twice as many hydrogen atoms (each of atomic mass 1) as oxygen atoms (each of atomic mass 16).
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Use the units to get answers like this: (6.02*10^23 molecules O2 / 1 mole O2) * (2 atoms O) / (1 molecule O2) * (1 mole O2 / 16 grams O2) → your answer in units of atoms O.
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Answer and Explanation: The number of molecules of oxygen in 23 moles of oxygen is 1.385 x 1025 molecules of oxygen.
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The number of molecules of oxygen in 23 moles of oxygen is 1.385 x 1025 molecules of oxygen.
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To use our old friend water as an example: One mole of Water is composed of 1 mole of Oxygen and two moles of Hydrogen. The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g.
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The calculation for oxygen is really similar. Again, there's two oxygens in the compound. So, there would be 31.998 grams per mole of oxygen in hydrogen peroxide. We divide that by the total mass of the compound, multiply it by 100%, and get the mass percent of oxygen in hydrogen peroxide being about 94%.
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1 Answer. 3 moles of Oxygen atoms weigh 48.00 grams.
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Therefore, there will be 6.022×1023 oxygen atoms in 1 mole, or 18 g of water.
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›› More information from the unit converter The answer is 15.9994. We assume you are converting between grams Oxygen and mole. You can view more details on each measurement unit: molecular weight of Oxygen or mol The molecular formula for Oxygen is O.
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The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CO2, or 44.0095 grams.
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Oxygen has a molar mass of 16.0 g mol−1 , so 1 mole of oxygen atoms has a mass of 16.0 g . Therefore, carbon dioxide has a percent composition of 72.7% oxygen, i.e. for every 100 g of carbon dioxide you get 72.7 g of oxygen.
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Answer and Explanation: There are 6.022×1023 6.022 × 10 23 atoms in 16 grams of oxygen.