AP Chemistry Flashcards: Introduction To Titration

What this deck covers

This deck focuses on Introduction To Titration, giving you a quick way to review the definitions, rules, and examples that matter most for AP Chemistry.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Find the molarity if $0.025$ mol of solute is in $0.5$ L solution.

Answer: $M = 0.05$ M. Using $M = \frac{n}{V} = \frac{0.025}{0.5}$.

Flashcard 2: What equipment is used to measure precise volumes in titration?

Answer: Burette. Graduated glassware provides accurate volume readings.

Flashcard 3: What is titration used for in chemistry?

Answer: To determine the concentration of a solution. Quantitative analysis relies on neutralization reactions.

Flashcard 4: Which compound is often used as a primary standard?

Answer: Potassium hydrogen phthalate (KHP). Monoprotic acid with stable, known molecular weight.

Flashcard 5: Calculate the molarity of a solution if $25$ mL of $0.1$ M solution is diluted to $100$ mL.

Answer: $M = 0.025$ M. Using dilution formula $M_1V_1 = M_2V_2$.

Flashcard 6: What is the pKa of an indicator?

Answer: The pH at which half of the indicator is deprotonated. Determines optimal indicator transition range.

Flashcard 7: Identify the main advantage of using a pH meter in titration.

Answer: Provides precise pH measurement. Digital measurement eliminates visual interpretation errors.

Flashcard 8: Identify the type of error minimized by using a burette.

Answer: Measurement error. Graduated scale reduces volume reading uncertainty.

Flashcard 9: What color change indicates the endpoint in a phenolphthalein titration?

Answer: Colorless to pink. Indicates basic pH reached at endpoint.

Flashcard 10: Which titration technique requires a secondary reaction to find concentration?

Answer: Back titration. Uses excess reagent followed by reverse titration.

Flashcard 11: Identify the point where the titration is complete.

Answer: Equivalence point. Moles of acid equal moles of base added.

Flashcard 12: What is the purpose of a titration curve?

Answer: To visualize pH changes during titration. Graphical representation shows neutralization progress.

Flashcard 13: Determine the molarity if $1$ mol solute is in $1$ L solution.

Answer: $M = 1$ M. Direct application of molarity definition.

Flashcard 14: What is back titration?

Answer: A technique to determine excess reagent concentration. Indirect method when direct titration isn't feasible.

Flashcard 15: What is the formula for calculating molarity?

Answer: $M = \frac{\text{moles of solute}}{\text{liters of solution}}$. Standard concentration unit in analytical chemistry.

Flashcard 16: Which piece of glassware is crucial for titration accuracy?

Answer: Burette. Graduated markings enable precise volume delivery.

Flashcard 17: What is the role of a pipette in titration?

Answer: To measure and transfer precise liquid volumes. Delivers exact volumes for accurate analysis.

Flashcard 18: Which indicator is suitable for a strong acid-strong base titration?

Answer: Phenolphthalein. Color change matches equivalence point pH.

Flashcard 19: Calculate the volume of $0.1$ M HCl needed to neutralize $50$ mL of $0.1$ M NaOH.

Answer: 50 mL. Equal molarity and volume gives 1:1 stoichiometry.

Flashcard 20: Which type of titration involves a precipitation reaction?

Answer: Precipitation titration. Forms insoluble product to determine concentration.

Flashcard 21: Calculate the molarity if $0.5$ mol solute is in $2$ L solution.

Answer: $M = 0.25$ M. Using $M = \frac{n}{V} = \frac{0.5}{2}$.

Flashcard 22: What is the pKa of an indicator?

Answer: The pH at which half of the indicator is deprotonated. Determines optimal indicator transition range.

Flashcard 23: What is a buffer solution's role in titration?

Answer: To resist pH changes. Maintains pH stability during reaction.

Flashcard 24: Find the molarity if $0.025$ mol of solute is in $0.5$ L solution.

Answer: $M = 0.05$ M. Using $M = \frac{n}{V} = \frac{0.025}{0.5}$.

Flashcard 25: Which compound is often used as a primary standard?

Answer: Potassium hydrogen phthalate (KHP). Monoprotic acid with stable, known molecular weight.

Flashcard 26: Calculate the molarity of a solution if $25$ mL of $0.1$ M solution is diluted to $100$ mL.

Answer: $M = 0.025$ M. Using dilution formula $M_1V_1 = M_2V_2$.

Flashcard 27: What is titration used for in chemistry?

Answer: To determine the concentration of a solution. Quantitative analysis relies on neutralization reactions.

Flashcard 28: What equipment is used to measure precise volumes in titration?

Answer: Burette. Graduated glassware provides accurate volume readings.

Flashcard 29: What is the relationship between titration and stoichiometry?

Answer: Stoichiometry relates reactant-product mole ratios. Mole ratios determine equivalent amounts needed.

Flashcard 30: What is the significance of a titration curve's inflection point?

Answer: Indicates the equivalence point. Steepest slope marks neutralization completion.