Answer:
Explanation:
Here, we want to get the volume of barium hydroxide that must be used
From the balanced equation of reaction, 1 mole of barium hydroxide produced 2 moles of water
x moles of barium hydroxide will produce 5.5 moles of water
To get the value of x, we have it that:
[tex]\begin{gathered} 1\text{ - 2} \\ x\text{ - 5.5} \\ \\ 2\times x\text{ = 5.5 }^\times1 \\ x\text{ = }\frac{5.5}{2} \\ \\ x\text{ =2.75 moles} \end{gathered}[/tex]Mathematically:
[tex]\begin{gathered} number\text{ of moles = volume }\times\text{ molarity} \\ volume\text{ = }\frac{number\text{ of moles }}{molarity} \end{gathered}[/tex]From the question, the molaity is 0.125 M
Thus, we have the number of moles as:
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