A. zn2 + 2e- --zn(s)
zinc oxide is reduced therefore it's an oxidizing agent
Answer:
e) 1000 μg
Explanation:
When we need to change of units is very important to know equivalence and use conversion factors to change from one unit to another unit.
1Ton = 1000Kg
1Kg = 1000g
1g = 1000mg
1mg = 1000 μg
In this case, always 1mg will be equal to 1000 μg as well as 2mg will be 1000μg
This is a strong base / week acid reaction.
NaOH + CH3COOH
The equilibrium of this reaction is very displaced to the right leading to the formation of the products
Na CH3COO + H2O
Na CH3COOH is a ionic compound which in solutionn will be as Na (+) and CH3COOH(-)
=> CH3COOH + NaOH = CH3 COO(-) + Na(+) + H2O
So, the predominant species in the solution are the ions Na(+) and CH3COO(-).
In general, in an strong base / weak acid titration, the predominant species present at the stoichiometric point will be the cation of the strong base (Na+ in this case) and the conjugate base of the weak acid (the anion of the weak acid, which is CH3COO- in this case).
The answer is predominantly Na(+) and CH3COO(-); predominantly because it is an equlibrium which means that the rectants will also br present.
