how many moles of magnesium phosphate contains 0.25 moles of oxygen atoms?
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3(po4)2, will contain 0.25 mole of oxygen atoms? 1 mole of Mg3(PO4)2 (molecule) contains 3 moles of Mg atoms, 2 moles of P atoms and 2X4 moles of O atoms. = 0.03125 moles.
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So, we have a mass of 32 grams. We can also use the periodic table to determine that the Mr of oxygen is 16. So there are 2 moles of Oxygen present.
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The first step is to determine the mass of the oxygen in the oxide. We obtain this value by subtracting the mass of the phosphorous in the beginning from the mass of the oxide. 0.4400g – 0.1920g = 0.2480g of oxygen The next step is to convert both the mass of the phosphorous and oxygen to moles.
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number of moles of phosphorus molecules = 124/124 = 1 mole. One mole contains 6.023 x 10 ^ 23 particles. =24.092x 10^23 atoms of phosphorus. Seems it helps.
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64 gm of Oxygen comprises of 3.556 moles. One mole of any substance has 6.022140857×10^23 molecules.
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the no of moles of oxygen atom in the sample is. Answer: Ammonium phosphate is (NH4)3 PO4. it has 12 hydrogen atoms and 4 oxygen atoms.
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A mole of oxygen molecules contains 2 moles of oxygen atoms. For elements that exist as molecules, it is best to explicitly state whether molecules or atoms are meant. Thus "1 mole of oxygen molecules" means 6.022 x 1023 O2 molecules, or 2 x 6.022 x 1023 O atoms; "1 mole of oxygen atoms" means 6.022 x 1023 O atoms.
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For example, one atom of magnesium weighs 24.31 amu (atomic mass units). However, one mole of magnesium weighs 24.31 g. (Moles were planned that way!)
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How many moles of O atoms do you have when you have 1.20 x 1024 N2O5 molecules? I Nzo5 11.
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Answer and Explanation: The above compound is called calcium phosphate. There are eight oxygen atoms in the above formula: Ca3(PO4)2 C a 3 ( P O 4 ) 2 .
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The Periodic Table tells us that the molar mass of oxygen is 15.99 g⋅mol−1 , and the molar mass of magnesium is 24.31 g⋅mol−1 .
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In one mole of atomic oxygen, O, there are 6.022 x 10^23 atoms O. In one molecule of O2, the form of oxygen that we breathe, there are two oxygen atoms.
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For elements that exist as molecules, it is best to explicitly state whether molecules or atoms are meant. Thus "1 mole of oxygen molecules" means 6.022 x 1023 O2 molecules, or 2 x 6.022 x 1023 O atoms; "1 mole of oxygen atoms" means 6.022 x 1023 O atoms.
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These are different things. A mole of oxygen molecules contains 2 moles of oxygen atoms.
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Macroscopic View, In one mole of P2O5, two moles of phosphorus and five moles of oxygen are present.
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The correct answer to this question is D; the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen is P2O5.
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As you can see, magnesium oxide contains the most elemental magnesium of 60%. And 23% of this can be absorbed. Magnesium citrate, for example, contains only 11% elemental magnesium. And only 30% of this is absorbed.