The pH scale is a measure of the concentration of in a solution. hydrogen ions s

Question

The pH scale is a measure of the concentration of in a solution. hydrogen ions sulfate ions oxygen ions neutral ions A base is a(n). Acids make litmus paper turn. The traditional definition of acids is based on the observations of. Which of the following is NOT a strong acid? A water solution whose pH is 4 is. What is the pH of a neutral solution? Another term used for a basic solution is a(n) solution. A completely dissociates and has a high pH value. strong acid weak acid strong base weak base A species that is formed what a base gains a proton is a. conjugate base conjugate acid strong base strong acid

Explanation / Answer

I will answer these questions and update on the reasons

1.

In chemistry, pH is a numeric scale used to specify the acidity or basicity (alkalinity) of an aqueous solution. It is roughly the negative of the logarithm to base 10 of the concentration, measured in units of moles per liter, of hydrogen ions.

1) A) hydrogen ions

2) A base is an proton acceptor and react with acids to form salts,

B) proton acceptor

3) Acids make litmus paper turn Red

A) Red

4) The traditional definition of acids

a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind.

Arrhenius extended this theory by suggesting that acids are neutral compounds that ionize when they dissolve in water to give H+ ions and a corresponding negative ion.

4) C) Arrhenius

5) The definition of strong and weak acid are

In aqueous solution of a stron acid essentially ionizes 100%. In contrast, a weak acid only partially dissociates.

so the correct answer for this question is

5) B) CH3COOH

6) Pure water has a neutral pH of 7. pH values lower than 7 are acidic, and pH values higher than 7 are alkaline (basic).

So as per this pH of 4 will be acidic

6) C) Acidic

7) As per the definition given above is

D) 7

8) As per the definition given above

A) Alkaline

9) Pure water has a neutral pH of 7. pH values lower than 7 are acidic, and pH values higher than 7 are alkaline (basic).

So a high pH value is obtained from a base

Complete dissociation is observed for a strong base

9) C) Strong base

10)

A conjugate pair refers to acids and bases with common features. These common features include the equal loss/gain of protons between the pairs. Conjugate acids and conjugate bases are characterized as the acids and bases that gain or lose protons, respectively.  In an acid-base reaction, an acid plus a base reacts to form a conjugate base plus a conjugate acid.

Acid + Base Conjugate Base + Conjugate Acid

10) B) conjugate acid

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