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acid base titration lab answers Titration Acid Formula Base Formula Volume of Acid, VA Molarity of Acid, MA Volume of Base, VB End, or Equivalence Point, pH #1 HCl NaOH 25. 00 0.1353 18. 50 7 Reaction Equation HCl + NaOH ---> ___NaCl_____ + ___H 2 O_____ #2 HNO 3 KOH 25.00 0.1644 19.40 7 Reaction Equation
HNO 3 + KOH - --> ___KNO 3 _____ + ___ H 2 O_____
Calculations Use the equation, Molarity acid x Volume acid = Molarity base x Volume base: MA•VA = MB•VB Titration #1: Molarity of Base, MB = MA•VA VB Titration # 2 : Molarity of Base, MA = MB•VB VA Titration #1: MB = ____0.1828_________ M Titration #2: MA = ____0. 2119 _________ M
Titration Lab, Interactive Simulation Quiz, Learning Check
- When a strong base and a strong acid combine, what is the pH of the salt that is created? a. 1.0 b. 7.0 c. 10.0 d. Depends on the reactants
- What two products are formed when an acid and a base combine? a. double displacement c. acid & base b. base and salt d. salt & water
- What is the purpose of using an indicator for a titration? a. To be able to see when the reaction is complete c. To be able to better focus the eyes on the reaction b. To determine when the reactants are fully ionized d. To make the procedure more visually interesting
- What advantages are there to doing a virtual titration as opposed to a titration in the lab? a. Lets students play on the computer c. Safer, more efficient, lower cost b. None, would rather do the hands-on lab d. To sharpen computer skills
- Which of these is a strong acid? a. CH 3 COOH c. NH 3 b. C 6 H 12 O 11 d. HCl
- Which of these is a strong base? a. CH 3 COOH c. NH 3 b. NaOH d. HCl
- Acid – base reactions are often ________________________. a. Double displacement c. Combustion b. Redox d. Synthesis
- Which of these is an indicator? a. Ammonium sulfate c. Lactose c. Ribonucleic Acid d. Phenolphthalein
- What is the purpose of a titration? a. To generate colorful reactions c. To determine the concentrations of unknown solutions b. To help pass Chemistry course d. To determine the identity of unknown compounds
- What is another name for “endpoint”? a. Balance point c. Stoichiometric point b. Equivalence point d. Final point Fill in answers here.
