What is pH scale? from Chemistry Equilibrium

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Equilibrium

Short Answer Type

161. How is ionic product of water affected if an acid or base is added to water at the same temperature?

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162. Which factor determines the strength of an acid?

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163. Select strong electrolytes, weak electrolytes and non-electrolytes cut of HCl, NH₄OH, urea, KOH, NaCl, sugar, CH₃COOH.

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164.

How does degree of dissociation of a weak acid (HA) vary with concentration?
Or
What is Ostwald’s dilution law?

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165. What is pH of a solution?

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166. What is pH scale?

Hydronium ion concentration in molarity is more conveniently expressed on a logarithmic scale known as the pH scale.

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167. What is the range of pH value of:
(i) acids (ii) bases?

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168. What is ionic product of water?

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169. Write a mathematical representation of Ostwald’s dilution law.

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170. Acetic acid is highly soluble in water but is ionised to a small extent. Is it a strong or weak electrolyte ?

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