Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

18. Aqueous Equilibrium

Titrations: Weak Acid-Strong Base

General Chemistry

18. Aqueous Equilibrium

Titrations: Weak Acid-Strong Base

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Multiple Choice

What is the initial concentration of formic acid (HCOOH) in the solution before titration?

0.175 M

0.195 M

0.20 M

0.1105 M

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Verified step by step guidance

Understand that the problem is asking for the initial concentration of formic acid (HCOOH) in a solution before titration. This is a typical question in acid-base chemistry where you need to determine the concentration of an acid in a solution.

Recognize that the given options are potential concentrations of formic acid. The problem does not provide additional data or context, such as volume or moles, which are typically needed to calculate concentration. Therefore, this problem seems to be asking for a conceptual understanding or selection of the correct initial concentration from the given options.

Recall that concentration is defined as the amount of solute (in moles) divided by the volume of solution (in liters). The formula for concentration is:

C = \frac{n}{V}

, where

n

is the number of moles and

V

is the volume.

Consider the context of the problem. If this is a multiple-choice question, the correct answer is likely one of the given options. The problem states 'The correct answer is: 0.195 M', which suggests that this is the initial concentration of formic acid before titration.

Reflect on the importance of understanding the initial conditions in a titration problem. Knowing the initial concentration of the acid is crucial for calculating the pH and understanding the titration curve, which helps in determining the equivalence point and the amount of titrant needed.