Answer:
21.5mL of a 0.100M HCl are required
Explanation:
The sodium phenoxide reacts with HCl to produce phenol and NaCl in a 1:1 reaction.
To solve this question we need to find the moles of sodium phenoxide. These moles = Moles of HCl required to reach equivalence point and, with the concentration, we can find the needed volume as follows:
<em>Mass NaC6H5O:</em>
1.000g * 25% = 0.250g NaC6H5O
<em>Moles NaC6H5O -116.09g/mol-</em>
0.250g NaC6H5O * (1mol/116.09g) = 2.154x10⁻³ moles = Moles of HCl required
<em>Volume 0.100M HCl:</em>
2.154x10⁻³ moles HCl * (1L/0.100mol) = 0.0215L =
<h3>21.5mL of a 0.100M HCl are required</h3>
Here is the graph, hopefully the next person can get it
Hey,
A compound is a substance that is made of two or more type of atoms chemically bonded together.
So this means that they are joined together by a chemical reaction.
And of those options PF3 H2SO4 H2O And CO are compounds as you can see they are made of two different type of atoms
Hope this helps !!
The question is incomplete; the complete question is;
Why will the conjugate base of a weak acid affect pH? Select the correct answer below: O it will react with hydroxide
O it will react with water
O it will react with hydronium
O none of the above Content attribution
Answer:
O it will react with hydronium
Explanation:
If we have a weak acid HA, the weak acid ionizes as follows;
HA(aq) ----> H^+(aq) + A^-(aq)
A^- is the conjugate base of the weak acid.
H^+ interacts with water to form the hydronium ion as follows;
H^+(aq) + H2O(l) ----> H3O^+(aq)
The pH=[H3O^+]
But the conjugate base of the weak acid reacts with this hydronium ion thereby affecting its concentration and the pH of the system as follows;
A^-(aq) + H3O^+(aq) ------> HA(aq) + H2O(l)
