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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: rafarock077 on November 04, 2018, 04:20:50 PM

Title: Need some help in redox
Post by: rafarock077 on November 04, 2018, 04:20:50 PM

My teacher give me the equation and im going crazy, its a redox btw:


CH3-CH2-CH2-OH + Cr2O7K2 + SO4H2  :rarrow: propanoic acid + Cr2(SO4)3 + SO4K2 + H2O

im losing my s#*$ in this

Title: Re: Need some help in redox
Post by: sjb on November 04, 2018, 04:43:40 PM

What is being oxidised, and what is being reduced? Can you write half equations for each?

Title: Re: Need some help in redox
Post by: rafarock077 on November 04, 2018, 04:50:25 PM

idk how propanol and propanioic acid get ionize but im sure that propanol get oxidised and Cr2 O7 K2 get reduced

Title: Re: Need some help in redox
Post by: sjb on November 08, 2018, 07:07:11 AM

Consider then

RCH₂OH -> RCO₂H in the presence of acid (the ethyl is unchanged so we can ignore it for simplification). Can you balance this?