Chemical Forums
Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: Win,odd Dhamnekar on April 06, 2023, 11:08:36 AM
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1)MnCO3 (s)+ HI(aq) :rarrow:
Answer: MnCO3 (s) +2HI(aq) :rarrow: MnI2 (aq)+H2O(l) +CO2(g)
2)CoO (s) + O2(g) :rarrow:
Answer: 6CoO(s) +O2 (g) :rarrow: 2Co3O4(s)
3)La(s) + O2(g) :rarrow:
Answer: 4La(s) + 3O2(g) :rarrow: 2La2O3(s)
4)V(s) + VCl4(s) :rarrow:
Answer:V(s) + VCl4(s) :rarrow: 2VCl2(s)
5)Co(s) + xsF2(g) :rarrow:
Answer: Co (s) + xsF2(g) :rarrow: CoFxs(s)
6)CrO3(s) + CsOH (aq) :rarrow:
Answer:CrO3(s) + 2CsOH(aq) :rarrow: Cs2CrO4(aq) + H2O(l)
Please note that in reaction 5), xs represents an excess of F2. The product will be a cobalt fluoride with a stoichiometry that depends on the amount of F2 used.
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1. correct
2. Why no Co2O3
3.correct
4.what about with VCl3
5.what about with CoF3
6. What about with Cs2Cr2O7
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6. What about with Cs2Cr2O7
CsOH suggests alkaline conditions.
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1. correct
2. Why no Co2O3
3.correct
4.what about with VCl3
5.what about with CoF3
6. What about with Cs2Cr2O7
Your answers for questions 2,4 5,6 are also correct. 🤩
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6. What about with Cs2Cr2O7
CsOH suggests alkaline conditions.
And CrO3 suggest acidic condition. The question is which compound is in excess.