What is the oxidation number of Cr in Cr2O72 −?
In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion. We assign -2 as the oxidation number for each oxygen, and x as the oxidation number of each chromium and write the following equation: 2x + 7(-2) = – 2… x = +6.
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What is the oxidation number of cr2 o7 2?
The dichromate ion has a charge of 2−, as indicated by its formula, Cr2O72−. The oxidation number of chromium in the dichromate ion is +6.
What is cr2o7?
Description. Dichromate(2-) is a divalent inorganic anion obtained by removal of both protons from dichromic acid. It is a chromium oxoanion and a divalent inorganic anion. It is a conjugate base of a hydrogen dichromate.
Why k2cr2o7 is orange in acidic and yellow in basic?
It’s colour changes from orange to yellow due to formation of chromate (cro4-2) while in basic med. It again changes from yellow to orange. Aakash EduTech Pvt. Ltd.
What is the N factor of k2 cr2 o7?
Potassium dichromate in an acidic medium is a strong oxidizer. It means it gains electrons during redox reaction. There is overall gain of 6 electrons. That means n-factor for this reaction is 6.
What is the equivalent weight of K2Cr2O7 in acidic medium?
What is the equivalent weight of feso4?
So, the molecular weight of ferrous sulphate is 151.8. -Equivalent weight of ferrous sulphate = molecular weight of ferrous sulphate/ involved electron. So, equivalent weight of ferrous sulphate which is present as reductant is 151.8 which is equal to the molecular weight of ferrous sulphate.
What is the equivalent weight of Fecl3?
In Fecl2, Fe has +2 valency whereas in Fecl3,Fe has +3 valency. Iron (atomic weight 55.845) has an equivalent weight of 27.9225 in ferrous compounds (valence 2) and 18.615 in ferric compounds (valence 3).
What is equivalent weight of oxygen?
Hydrogen has atomic weight 1.008 (rounded to three decimal places) and always assumes valence 1 in compounds, so its equivalent weight is 1.008. Oxygen has an atomic weight of 15.999 and always assumes valence 2 in compounds, so its equivalent weight is 7.9995.
What is the N factor of FeSO4?
n factor is defined for compounds involved in redox reactions as Numberif moles of electrons lost or gained by one mole of the given substance. In the above reaction, Fe+2 is changing to Fe+3. So only one electron is involved. n factor of FeSO4 = 1.
What is n factor of KCl?
Answer: N factor of kcl is 1 please as branliest.
What is the N factor of kmno4?
The n-factor is known as the change per molecule in the oxidation state of an atom in a substance. Was this answer helpful?…Thank you.
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What is the N factor of AgNO3?
AgNO3 – Mol. mass = 108 + 14 + 48 = 170g/mole !!! Equivalent weight = molar wt. / n- factor !!! and n factor for AgNO3 is 1 !!!
What is n factor?
For acids, n-factor is defined as the number of H+ ions replaced by 1 mole of acid in a reaction. For bases, n-factor is defined as the number of OH– ions replaced by 1 mole of base in a reaction. Note that n-factor is not equal to its acidity i.e. the number of moles of replaceable OH– ions present in 1 mole of base.
What is equivalent weight of silver nitrate?
What is n factor of o2?
n factor of oxygen molecule is 2.
Can n factor be zero?
n factor for acids is its basicity,ie, no of replaceable hydrogen ion per molecule. For a base number of OH- ions that a molecule of base could give is n-factor. Therefore, n-factor is zero.
What is the N factor of H 3 PO 2?
Answer: N factor of is 3. N factor of is 2.
What is the N factor of H 3 PO 3?
But for now know it as a thumb rule. Therefore, since H3PO3 has only two H attached to O, its n-factor is 2 and not 3.
What is the Valency of H 3 PO 4?
Phosphoric acid, or H3PO4 , has a total of 32 valence electrons, 5 from the phosphorus atom, 6 from each of the four oxygen atoms, and 3 from each of the hydrogen atom.