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1. www.bbc.co.uk › bitesize › guidesWeak acids vs strong acids [GCSE Chemistry only] - BBC

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   GCSE; WJEC; pH scale and indicators Weak acids vs strong acids [GCSE Chemistry only]. Many chemicals can be classified as being acidic, neutral or alkaline by using indicators. The pH scale is ...

   • Concentrations and strengths of acids - Higher - Acids and ...

     Indicators are used to determine if a solution is acidic or...

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3. chem.libretexts.org › Courses › University_of5.4: Factors That Determine Acid Strength - Chemistry LibreTexts

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   Feb 11, 2021 · Because fluoride is the least stable (most basic) of the halide conjugate bases, HF is the least acidic of the haloacids, only slightly stronger than acetic acid. HI, with a pK a of about -9, is one the strongest acids known. More importantly to the study of biological organic chemistry, this trend tells us that thiols are more acidic than ...

4. chemguide.co.uk › physical › acidbaseeqiaSTRONG AND WEAK ACIDS - chemguide

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   Strong acids and pH. pH is a measure of the concentration of hydrogen ions in a solution. Strong acids like hydrochloric acid at the sort of concentrations you normally use in the lab have a pH around 0 to 1. The lower the pH, the higher the concentration of hydrogen ions in the solution. Defining pH

5. www.savemyexams.com › a-level › chemistryStrength of Acids and Bases - A Level Chemistry - Save My Exams

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   Jan 7, 2011 · pH. An acid dissociates into H + in solution according to: HA → H+ + A-. The stronger the acid, the greater the concentration of H+ and therefore the lowerthepH. pH value of a strong acid & base table. The most accurate way to determine the pH is by reading it off a pH meter. The pH meter is connected to the pH electrode which shows the pH ...

6. www.bbc.co.uk › bitesize › guidesConcentrations and strengths of acids - Higher - Acids and ...

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   Indicators are used to determine if a solution is acidic or alkaline. Acids react with metals, bases and carbonates to produce salts. ... For example, hydrochloric acid is a strong acid. It ...

7. chem.libretexts.org › Bookshelves › Introductory14.7: Strong and Weak Acids and Bases - Chemistry LibreTexts

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   Sep 16, 2022 · Contributions & Attributions. 14.7: Strong and Weak Acids and Bases is shared under a CK-12 license and was authored, remixed, and/or curated by Marisa Alviar-Agnew & Henry Agnew. Acids are classified as either strong or weak, based on their ionization in water. A strong acid is an acid which is completely ionized in an aqueous solution.

8. People also ask

   How do you know if an acid is strong or weak?

   • As you will see below, the strength of an acid is related to the proportion of it which has reacted with water to produce ions. The concentration tells you about how much of the original acid is dissolved in the solution. It is perfectly possible to have a concentrated solution of a weak acid, or a dilute solution of a strong acid. Read on . . .

   STRONG AND WEAK ACIDS - chemguide

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   What is a strong acid?

   • A strong acid is one which is virtually 100% ionised in solution. Other common strong acids include sulphuric acid and nitric acid. This shows the hydrogen chloride dissolved in the water splitting to give hydrogen ions in solution and chloride ions in solution. This version is often used in this work just to make things look easier.

   STRONG AND WEAK ACIDS - chemguide

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   Why are strong acids higher than weak acids?

   • This means that the pH values of strong acids are lower than that of weak acids, which explains why the rate of reaction of strong acids with substances (such as metals, metal carbonates etc) is higher than that of weak acids. This also explains why the temperature rise during a reaction with strong acids is higher than that of weak acids.

   Weak acids vs strong acids [GCSE Chemistry only] - pH scale and ... - BBC

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   How are acids different?

   • However, acids can be very different in a very important way. Consider HCl (aq). When HCl is dissolved in H 2 O, it completely dissociates into H + (aq) and Cl − (aq) ions; all the HCl molecules become ions: \ [HCl\overset {100\%} {\rightarrow}H^ {+} (aq)+Cl^ {-} (aq) \nonumber \] Any acid that dissociates 100% into ions is called a strong acid.

   14.7: Strong and Weak Acids and Bases - Chemistry LibreTexts

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   Why does temperature rise during a reaction with strong acids?

   • This also explains why the temperature rise during a reaction with strong acids is higher than that of weak acids. Weak and strong should not be mistaken for dilute and concentrated. A dilute acid has the acid molecules mixed with a large amount of water, so that there is only a low concentration of H + ions.

   Weak acids vs strong acids [GCSE Chemistry only] - pH scale and ... - BBC

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9. www.bbc.co.uk › bitesize › guidesConcentrations and strengths of acids - Higher - Acids and ...

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   Strong acids completely dissociate into ions in solution. For example, hydrochloric acid is a strong acid. It ionises completely to form hydrogen ions and chloride ions: