SZF IOS · Chemistry

Acids, Bases and Salts

pH, indicators, neutralisation, common salts, properties and uses.

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  • Q1 · Acids, Bases and Salts · MEDIUM

    During a neutralisation reaction, 20 mL of hydrochloric acid (HCl) of a certain concentration exactly neutralises 30 mL of sodium hydroxide (NaOH) solution of concentration 0.1 M. What is the concentration of the HCl solution?

  • Q2 · Acids, Bases and Salts · HARD

    A sample of rainwater collected from an industrial area has a pH of 4. Another sample collected from a forest area has a pH of 6. Compare the hydrogen ion concentration in the industrial area rainwater to that in the forest area rainwater.

  • Q3 · Acids, Bases and Salts · EASY

    What is the pH value of pure water at 25°C?

  • Q4 · Acids, Bases and Salts · EASY

    Which indicator turns pink in basic solution?

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