Answer:
Explanation:
Given:
A solution contains one or more of the following ions such as Ag, 
and 
Here the Lithium bromide is added to the solution and no precipitate forms
Solution:
Since with LiBr no precipitation takes place therefore Ag+ is absent
Here on adding 
to it precipitation takes place.
Precipitate is as follows,
Thus,
is present
When 
is added again precipitation takes place.
Therefore the reaction is as follows,
Therefore,
are present in the solution
Answer:
What does the shape of an enzyme determine? The shape of the enzyme determines which chemical reaction it will speed up. -The region on an enzyme that the substrate fits into. ... The active site of an enzyme only fits one type of substrate molecule.
Explanation:
Answer:
0.1832 moles of ethyl acetate (
)
Explanation:
1. Find the balanced chemical equation:
In the production of ethyl acetate, the acetic acid 
reacts with ethanol to produce ethyl acetate and water, that is:
2. Find the theoretical maximum moles of ethyl acetate :
As the problem says that the acetic acid is the limiting reagent, use stoichiometry to find the moles of ethyl acetate produced:
Answer:
The number of electrons is the atomic number
The answer is 7.
The equivalence point of a titration is when moles of titrant added becomes equal to the moles of sample analyte.
Calculate the pH at equivalence point for a strong acid and strong base reaction.
- The given acid is HCl which is a strong acid and the base NaOH is also a strong base.
- Calculate the moles of acid HCl:
Molarity of 
= 0.100 M
Volume of = 50 mL = 0.050 L
×
×
- At equivalence point, same moles of base are added and thus it results into complete neutralization. Thus, all the hydrogen ions of acid are neutralized by the hydroxide ions of the base forming only water and neutral salt.
- Thus, the pH at the equivalence point becomes 7 (neutral solution).
To learn more about pH at equivalence point visit:
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