Many scientists think that this single event caused the extinction of most the dinosaurs which led to the rise of mammals which
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pH of solution = 13.033
<h3>Further explanation</h3>Given
2.31 g Ba(OH)₂
250 ml water
Required
pH of solution
Solution
Barium hydroxide is fully ionized, means that Ba(OH)₂ is a strong base
So we use a strong base formula to find the pH
[OH ⁻] = b. Mb where
b = number of OH⁻ /base valence
Mb = strong base concentration
Molarity of Ba(OH)₂(MW=171.34 g/mol) :
Ba(OH)₂ ⇒ Ba²⁺ + 2OH⁻(b=valence=2)
[OH⁻]= 2 . 0.054
[OH⁻] = 0.108
pOH= - log 0.108
pOH=0.967
pOH+pH=14
pH=14-0.967
pH=13.033
Answer:
Mass of NO produced is "6.5 g".
Explanation:
The given reaction is:
⇒
Now,
⇒
⇒
⇒
- We shouldn't have to acknowledge the sum of H₂O as it would be in excess. It's going to mot finish resolving answer.
- We provided 0.65 mol of NO₂, of which 3 mol of NO₂ = 1 mol of NO was previously given.
Accordingly,
is created.
So,
The mass of NO will be:
=
=
=