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- inorganic chemistry - Colour of VO3^-? - Chemistry Stack Exchange
To aquire the yellow colour of vanadium ion, it must be present in a 5+ oxdiation state This can be acheived (according to my textbook) by adding dilute sulfuric acid to $\\ce{NH4VO3}$, then follo
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- transition metals - Does tetraoxidovanadium (VO4+) ion exist . . .
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- inorganic chemistry - Effect of H+ concentration on equilibria . . .
Considering the two equilibriums below, when the $[\\ce{H+}]$ decreases, my book says that equilibrium \\eqref{rxn:2} will shift to the left by a greater extent compared to equilibrium \\eqref{rxn:1}
- inorganic chemistry - Why is the vanadium (3+) ion paramagnetic . . .
I know that the electron configuration of vanadium is [Ar]4s23d3 [A r] 4 s 2 3 d 3 None of the electrons in the 3d subshell are paired Once it loses these three electrons, shouldn't the remainder of the electrons be paired? How can VX3+ V X 3 + be paramagnetic if it loses all its unpaired electrons?
- inorganic chemistry - Color difference among oxovanadium species . . .
Why dioxovanadium [VOX2]X+ [V O X 2] X + is pale yellow, whereas orthovanadate [VOX4]X3− [V O X 4] X 3 is colorless? Both of them should be colorless if we ignore charge transfer for a moment, because in both cases vanadium is at +5 oxidation state Now considering the charge transfer is the reason for the pale yellow color of dioxovanadium species, why orthovanadate does not show charge
- redox - Can the 5+ and 4+ oxidation state of Vanadium ion exist . . .
Most likely, vanadium cannot exist as a 4+ or 5+ ion except as part of a covalently bound species such as VOX2+ V O X 2 + or VOX2X+ V O X 2 X + However, its heavier congeners niobium and tantalum form minerals whose structure indicates at least partial ionic bonding in the +5 oxidation state One such mineral is Schiavinatoite, a niobium-tantalum borate in which the niobium or tantalum (in
- reaction between Iron (ii) and Vanadium (v) - Chemistry Stack Exchange
When we reduce Vanadium (V) using iron(II), why are we adding 85% Phosphoric acid? After the above reduction, if we are going to titrate the mixture with Potassium permanganate, why are we adding
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