Answer:
11.4
Explanation:
Step 1: Given data
Step 2: Write the dissociation equation
NH₃(aq) + H₂O(l) ⇄ NH₄⁺(aq) + OH⁻(aq)
Step 3: Calculate the concentration of OH⁻
We will use the following expression.
Step 4: Calculate the pOH
We will use the following expression.
Step 5: Calculate the pH
We will use the following expression.
Answer:
S₂O₂
Explanation:
The multiplying prefix di- means "two."
Thus, a molecule of disulfur dioxide has two atoms of sulfur and two atoms of oxygen.
The formula is S₂O₂.
Explanation:
The chemical equation of the reaction that occurs when reacts with
is
→
moles of
requires
moles of
.
mole of
requires
moles of
.
Given that we have moles of
.
moles of
requires
moles of
.
But we have moles of
.
So, will be consumed first.
So, is the limiting reagent.