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Related Concept Videos

Titration Calculations: Strong Acid - Strong Base02:28

Titration Calculations: Strong Acid - Strong Base

33.9K
Calculating pH for Titration Solutions: Strong Acid/Strong Base
A titration is carried out for 25.00 mL of 0.100 M HCl (strong acid) with 0.100 M of a strong base NaOH. The pH at different volumes of added base solution can be calculated as follows:
(a) Titrant volume = 0 mL. The solution pH is due to the acid ionization of HCl. Because this is a strong acid, the ionization is complete and the hydronium ion molarity is 0.100 M. The pH of the solution is then:
33.9K
Strong Acid and Base Solutions03:22

Strong Acid and Base Solutions

35.7K
A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial concentration of acid. For example, 0.20 M hydrobromic acid will dissociate completely in water and produces 0.20 M of hydronium ions and 0.20 M of bromide ions.
35.7K
Titration of a Strong Acid with a Strong Base01:23

Titration of a Strong Acid with a Strong Base

10.5K
During the titration of a strong acid with a strong base, pH calculations are primarily based on the concentration of residual hydronium or hydroxide ions. Initially, a strong acid like hydrochloric acid fully dissociates, creating hydronium and chloride ions, resulting in a low pH. The addition of a strong base like sodium hydroxide alters the concentration of hydronium ions by neutralizing them. As more base is added, the pH gradually increases. At the equivalence point, all hydronium ions...
10.5K
Titration Calculations: Weak Acid - Strong Base03:55

Titration Calculations: Weak Acid - Strong Base

49.3K
Calculating pH for Titration Solutions: Weak Acid/Strong Base
For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be represented as:
49.3K
Titration of a Weak Base with a Strong Acid01:20

Titration of a Weak Base with a Strong Acid

9.0K
The titration curve of a weak base like ammonia with a strong acid like hydrochloric acid is the mirror image of the titration curve of a weak acid with a strong base.
Using the ICE table and substituting the Kb value, we calculate the initial pH of 50 mL of 0.1 M ammonia to be 11.11. Addition of 25 mL of 0.1 M hydrochloric acid to this solution of ammonia results in a buffer with an equal concentration of ammonia and ammonium ions. The pH of this buffer can be calculated by substituting these...
9.0K
Titration of a Weak Acid with a Strong Base01:30

Titration of a Weak Acid with a Strong Base

4.5K
In titrating a weak acid with a strong base, different calculation methods are applied at various stages. Initially, the pH of a weak acid like acetic acid is calculated using its dissociation constant (Ka) and an ICE table. Upon addition of a strong base such as sodium hydroxide, a buffer forms, and its pH is determined using the Henderson-Hasselbalch equation. As more base is added and the titration reaches the halfway point, the pH becomes equal to the pKa of the acid, indicating equal...
4.5K

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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Studying for a doctorate: developing a strong voice.

Lesley Kay

    The Practising Midwife
    |December 15, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Embarking on doctoral studies offers intellectual excitement but presents a long, challenging journey. This article shares personal experiences and practical advice for navigating the complexities of doctoral research.

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    Area of Science:

    • Doctoral Studies
    • Higher Education Research
    • Academic Journey

    Background:

    • Doctoral study is a significant academic pursuit.
    • It involves intellectual stimulation and personal growth.
    • However, it is often characterized by prolonged effort, frustration, and isolation.

    Purpose of the Study:

    • To share personal experiences of doctoral study.
    • To provide insights into the 'what, why, when, and how' of doctoral-level research.
    • To offer practical considerations for prospective doctoral candidates.

    Main Methods:

    • Qualitative reflection on personal doctoral journey.
    • Analysis of the inherent challenges in doctoral research.
    • Development of practical decision-making tools for candidates.

    Main Results:

    • Doctoral study combines the excitement of independent research with significant challenges.
    • Key challenges include managing uncertainty and the lack of closure.
    • Personal reflection highlights the demanding nature of the process.

    Conclusions:

    • Doctoral research is a dual experience of intellectual reward and personal hardship.
    • Prospective students must weigh the excitement against the arduous nature of the journey.
    • Self-assessment through practical challenges is crucial for deciding on doctoral pursuit.