how many atoms are present in mno2 molecule?
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MnO2 : One atom of Manganese , Two atoms of Oxygen , so 3 atoms in total ....
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The electron configuration in noble gas shorthand for a neutral Mn atom is [Ar]3d54s2 . The electron configuration for a Mn3+ ion is [Ar]3d4 .
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There are 6 of these molecules. H2O is a molecule made of H for hydrogen and O for oxygen. There are 12 of these molecules. The smaller number is the number of atoms of the element to the left of it.
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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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Looking at the products, the Mn2+ ion now has oxidation number +2. This decrease in the oxidation number tells us that the Mn atom has been reduced. Therefore, the compound in which it is found (MnO2) is the oxidizing agent!
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5 unpaired electrons for the 3d orbital of manganese (Mn).
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Molecular formula of ozone is hence we can say that one molecule of ozone contains 3 atoms of oxygen. Now atomic mass of oxygen is 16, and molecular mass of ozone is 48 because it contains 3 oxygen molecules.
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Explanation: Mn has [ Ar ] 3d(5) 4s(2) CONFIGURATION . NOW THESE FOUR ELECTRONS CAN BE ARRANGED IN THE FOLLOWING WAYS : tg(3) eg(1) OCTAHEDRAL weak field 4.
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So, 2moles of O2 contains 2× 6.023×10^23 molecule= 12.046 ×10^23 molecule . Now, 1 molecule of oxygen contains 2 atoms. Hence, 2mole of O2 contains 2 ×2 ×6.023 ×10^23 atoms = 24.
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A mole of CO2 contains 12.044 X 1023 oxygen atoms. We can find this answer by first determining how many molecules of CO2 we have in a mole.
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There are three atoms in a water molecule. 2 atoms of hydrogen and 1 oxygen atom. There 2 hydrogen and one oxygen atom so total 3 atom.
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Molecule: group of two or more atoms held together by chemical bonds. So, minimum 2 atoms are required to form a molecule. E.g. An oxygen molecule ( O2 ) contains 2 oxygen atoms.
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H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it. So one molecule of hydrogen peroxide weighs in at 34.02 u. The periodic table provides you with individual atomic masses. If you know the number and type of elements in a molecule you can add up the individual masses to find the molecular mass or molecular weight.
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Answer Electronic configuration of Mn2+ is [Ar]18 3d5. Electronic configuration of Fe2+ is [Ar]18 3d6. It is known that half-filled and fully-filled orbitals are more stable.
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These are different things. A mole of oxygen molecules contains 2 moles of oxygen atoms.
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The sum of individual atoms can be used to find the mass of a molecule. The mass of hydrogen peroxide, H2O2 would be calculated like this: H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it.
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The chemical formula for potassium oxide is K2 O, meaning the molecule is made of two potassium atoms and one oxygen atom.