If a 25.0 mL sample of phosphoric acid, H_3PO_4, is completely neutralized by 137 mL of 0.100 M...
Question:
If a 25.0 mL sample of phosphoric acid, {eq}H_3PO_4 {/eq}, is completely neutralized by 137 mL of 0.100 M KOH, what is the molarity of the phosphoric acid?
{eq}H_3PO_4 + 3 KOH \rightarrow 3 H_2O + K_3PO_4 {/eq}
Using the same chemical reaction as above, calculate how many grams of KOH are needed to neutralize 50 mL of 2.5 M {eq}H_3PO_4 {/eq}.
Phosphoric Acid:
Phosphoric acid is a weak triprotic acid with the molecular formula {eq}H_{3}PO_{4} {/eq}. The oxidation state of phosphorus in phosphoric acid is +5. Phosphoric acid is also termed as orthophosphoric acid.
Answer and Explanation: 1
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137 mL (0.137 L) of 0.100 M KOH solution contains {eq}(0.137\times 0.100) {/eq} mol of KOH or 0.0137 mol of KOH.
According to the balanced...
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Neutralization Reaction: Definition, Equation & Examples
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Chapter 4 / Lesson 6
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Learn about neutralization definition and various types of acid-base neutralization reaction examples. Understand weak acids and bases, and the applications of neutralization reaction.
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