Hey Madoudou
The correct answer is option B (sulfate)
The reason is because "Sulfate" has a negative sign.
In order for it to be a cation, it must have positive sign such as "iron(lll)ion
I hope this helps~
It can take 49 days, I could be wrong. What do you mean in this question?
Answer:
0.025536g
Explanation:
no. of mole = mass/Mr
mass = Mr × no. of mole
= [23 + 1 + 12 + 3(16)] × 3.04×10^-4
= 0.025536g
= 0.0255g (3 significant figures)
Answer:
Space exploration thus supports innovation and economic prosperity by stimulating advances in science and technology, as well as motivating the global scientific and technological workforce, thus enlarging the sphere of human economic activity.
Answer: When the reaction reaches equilibrium, the cell potential will be 0.00 V
Explanation:
Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.
The equilibrium is dynamic in nature and the reactions are continuous in nature. Rate of forward reaction is equal to the rate of backward reaction.
The standard emf of a cell is related to Gibbs free energy by following relation:
![\Delta G=-nFE^0](https://tex.z-dn.net/?f=%5CDelta%20G%3D-nFE%5E0)
The Gibbs free energy is related to equilibrium constant by following relation:
![\Delta G=-2.303RTlog K](https://tex.z-dn.net/?f=%5CDelta%20G%3D-2.303RTlog%20K)
For equilibrium ![\Delta G=0](https://tex.z-dn.net/?f=%5CDelta%20G%3D0)
Thus ![0=-nFE^0](https://tex.z-dn.net/?f=0%3D-nFE%5E0)
![E^0=0](https://tex.z-dn.net/?f=E%5E0%3D0)
Thus When the reaction reaches equilibrium, the cell potential will be 0.00 V