Jonathan Jagaba

Life begin where fear ends..

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Jonathan provided a contribution 11 months ago

Question 9 | Chemistry Past Questions

Propane and Carbon(iv)oxide diffuse at thesame rate bcos they have thesame relative molecular mass
Propane C3H8=36+8=44g/mol
CO2=12+16×2=12+32=44g/mol
Explanation provided by Jor Jagaba

Jonathan provided a contribution 11 months ago

Question 4341 | Chemistry Past Questions

When an secondary alcohol is treated with acidified KMnO4, or K2Cr2O7, they yield an alkanone
Explanation provided by Jor Jagaba

Jonathan provided a contribution 11 months ago

Question 112 | Chemistry Past Questions

K2Cr2O7
+1×2+Cr2+(-2×7)=0
+2+Cr2+14=0
Make Cr2 the subject formula by substrating 2 from both side
Cr2+14-2=0
Cr2=12
Divide both side by 2
12/2=6
Cr=+6
Explanation provided by Jor Jagaba

Jonathan provided a contribution 11 months ago

Question 4345 | Chemistry Past Questions

2-Methylprop-1-ene is an isomer of But-1-ene ,bcos all the carbon atoms present in the above isomer is four in number..
Explanation provided by Jor

Jonathan provided a contribution 11 months ago

Question 4343 | Chemistry Past Questions

The answer is Ethylpropanoate bcos the fxnal group here is Ester (ROR`),in IUPAC name the Cpd at R' is first name follow by the R.