MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price:

There are no items in this cart.
Continue Shopping
                   

why dichromate ions are used as breath analyzer?????????\


 



3 years ago

Share

Answers : (1)

                                        

When the user exhales into a breath analyzer, any ethanol present in their breath is oxidized to acetic acid at the anode:


CH3CH2OH(g) + H2O(l) → CH3CO2H(l) + 4H+(aq) + 4e-


At the cathode, atmospheric oxygen is reduced:


O2(g) + 4H+(aq) + 4e- → 2H2O(l)


The overall reaction is the oxidation of ethanol to acetic acid and water.


CH3CH2OH(l) + O2(g) → CH3COOH(l) + H2O(l)


The electrical current produced by this reaction is measured by a microprocessor, and displayed as an approximation of overall blood alcohol content

3 years ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
why there is ahydride gap in 7 th 8 th and 9 th groups of d block
 
 
Hydrogen combine with many element forming hydride in which its oxidation state is -1. The 7th8thand 9thgroup of d and f block donot form any hydrides with hydrogen because these elememt...
  img
Sunil Kumar FP 9 months ago
how many coordinate isomers are possible of compound [Cu9NH3)4][PtCl4]?
 
 
Coordinate isomers differ in the distribution of ligands between metal ions in complex compound [PtNH3)4][CuCl4] is the possible coordinate isomer
  img
Harishwar 3 months ago
 
Hi Student,I Information is Missing in the question.
  img
Harishwar 3 months ago
What is the difference between didentate ligand and ambidentate ligand?
 
 
Bidentate ligand A bidentate ligand has two points at which it can attach to the central atom. One example of such a ligand is: oxalate ion The two single-bonded oxygen atoms can each donate...
  img
Raheema Javed 6 months ago
 
Didentate or Bidentate ligands are the logands which makes bonds with the metal ion in two places. It make two bonds with two different portion of its structure. Ambidentate ligands are the...
  img
Aziz Alam 7 months ago
 
a bidentate is one which combines from 2 different sites simultaneously....but ambidentae is one which can combine from 2 sites but at a time only one site can combine(ambidentate ar...
  img
Harishwar 7 months ago
how to convert methano to ethanol
 
 
CH3-OH + HBr ------> CH3Br + H2O CH3BR + (CH3)2Cu-Li+ ------> CH3-CH3 + CH3BrCu+Li- CH3-CH3 + heat -----> CH2=CH2 CH2=CH2 + H2SO4 + H2O ------>CH3-CH2-OH approve if useful approve if useful
 
ng29 one month ago
 
add PBr 5 and then KCN and hydrolyse to form aceitic acid and then reduce by LiAlH 4
 
daksh one month ago
1) 10 g of argon gas is compressed isothermally and reversibly at a temperature of 27 0 C from 10 Lit to 5 Lit. Calculate q and ∆H for this process. Ans: q = + 103.99 calories and ∆H = 0
 
 
The process is isothermal, T=constant. Change in internal energy(dU)=0 from 1 st law q= dU + dW q= dW ispthermal work done= nRT ln(V2/V1) You can use the above equation to find the q and dH....
  img
Ramreddy 6 months ago
 
The process is isothermal, T=constant. Change in internal energy(dU)=0 from 1 st law q= dU + dW q= dW ispthermal work done= nRT ln(V2/V1) You can use the above equation to find the q and dH....
  img
Ramreddy 6 months ago
 
this is a simple question and you can get good things from solving this so just try
 
britto george one month ago
NCl3 is endothermic,nf3 is exothermic?
 
 
The NN bond energy is huge (-ve) and formation will only be thermodynamically allowed if X-X is low -ve (the F-F bond strength is anomalously small) and the N-X bond energy is high (-ve)....
  img
Harishwar 3 months ago
 
the reason lies in the difference of size . N-Cl bond is weak and N-F bond is strong. So it is exothermic
  img
Suraj Prasad 3 months ago
View all Questions »