Titrations

What is the endpoint of a titration

• Where the amount of acid and base are balanced according to the equation

• Where there is no base

• At the end

I am titrating 1M HCl with 1M NaOH.  I have 25mL of HCl. How much NaOH will I need?

• 2.5mL

• 5mL

• 25mL

• 50mL

Tags

NGSS.HS-PS1-7

For the acid-base titration combination of NaOH with 0.79 mol HCl, find the number of moles of NaOH that would be the chemically equivalent amount of HCl.

• 0.79 mol

• 1.6 mol

• 0.38 mol

• 3.2 mol

Tags

NGSS.HS-PS1-7

A process used to find the molarity of an acid or base solution.

• molarity

• titration

• endpoint

• neutralization

Determining the unknown concentration of a solution is performed during what laboratory technique?

• titration

• filtration

• evaporation

• distillation

A chemist claimed that in Experiment 2, the pH of the sample solution was greater at a value of 0.2 mL of titrant added than at a value of 1.8 mL of titrant added. Do the results of Experiment 2 support this claim?

• No; at a value of 0.2 mL of titrant added, the sample solution was yellow, and at a value of 1.8 mL of titrant added, the sample solution was blue.

• No; at a value of 0.2 mL of titrant added, the sample solution was blue, and at a value of 1.8 mL of titrant added, the sample solution was yellow.

• Yes; at a value of 0.2 mL of titrant added, the sample solution was yellow, and at a value of 1.8 mL of titrant added, the sample solution was blue.

• Yes; at a value of 0.2 mL of titrant added, the sample solution was blue, and at a value of 1.8 mL of titrant added, the sample solution was yellow.

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If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution, what is the concentration of HCl?

• 0.043 M

• 23.148 M

• 0.231 M

How many milliliters of 0.360 M H₂SO₄ are required to neutralize 25 mL of 0.1 M Ba(OH)₂?

• 6.944 mL

• 0.144 mL

• 0.069 mL

Calculate the volume of a 0.15 M Ba(OH)2 solution required to completely neutralize 45 ml of a 0.29 M HNO3 solution.

• 43.5 ml

• 87 ml

• 23.3 ml

• 51.9 ml

Tags

NGSS.HS-PS1-7

What is the concentration of a HCl solution if 24.7 ml of HCl are completely neutrilized by 35.8 ml of a 0.25 M NaOH solution?

• 0.362 M

• 3.62 M

• 0.172 M

• 35.4 M

Tags

NGSS.HS-PS1-7