What Is the Hydroxide-Ion Concentration in a Solution Formed by Combining

question 59

Multiple Choice

What is the hydroxide-ion concentration in a solution formed by combining 200.mL of 0.15 M HCl with 300.mL of 0.091 M NaOH at 25°C?
HCl(aq) + NaOH(aq) $\to$ NaCl(aq) + H₂O(l)

• A) 1.7 \(\times\) 10^-13 M
• B) 0.091 M
• C) 1.9 \(\times\) 10^-12 M
• D) 0.055 M
• E) 1.0 \(\times\) 10^-7 M

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