Answer:
Benzoic acid is the stronger acid
Explanation:
Weak acids do not dissociate completely in the solution. They exists in equilibrium with their respective ions in the solution.
The extent of dissociation of the acid furnising hydrogen ions can be determined by using dissociation constant of acid ().
Thus for a weak acid, HA
The is:
The more the , the more the acid dissociates, the more the stronger is the acid.
Also,
is defined as the negative logarithm of .
So, more the , less is the and vice versa
All can be summed up as:
The less the value of , the more the is and the more the acid dissociates and the more the stronger is the acid.
Given,
of acetic acid = 54.7
of benzoic acid = 54.2
of benzoic acid < of acetic acid
So, benzoic acid is the stronger acid.
In the balanced equation, we see that the ratio of is 1:2 respectively. That being said, we can then set up a proportion to solve for the number of moles of water produced from 13.35 moles of oxygen:
Then we cross multiply and solve for x:
Therefore the answer is B) 26.70 mol.
Answer:
6. 25.8 mL.
7. 16.4 mL.
8. 24.0 mL.
Explanation:
6. Determination of the volume of HCl.
Mass = 30 g
Density = 1.164 g/mL
Volume =..?
Density = mass /volume
1.164 = 30 / volume
Cross multiply
1.164 × volume = 30
Divide both side by 1.164
Volume = 30 / 1.164
Volume = 25.8 mL
7. Determination of the volume of H2SO4.
Mass = 30 g
Density = 1.834 g/mL
Volume =..?
Density = mass /volume
1.834 = 30 / volume
Cross multiply
1.834 × volume = 30
Divide both side by 1.834
Volume = 30 / 1.834
Volume = 16.4 mL
8. Determination of the volume of HNO3.
Mass = 30 g
Density = 1.251 g/mL
Volume =..?
Density = mass /volume
1.251 = 30 / volume
Cross multiply
1.251 × volume = 30
Divide both side by 1.251
Volume = 30 / 1.251
Volume = 24.0 mL
The other ion would be Oxygen or O1.
Calcium would be more reactive because it is closer to francium on the periodic table, francium is the MOST reactive element.