Advertisements
Advertisements
प्रश्न
How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?
उत्तर
When an acid is diluted, the concentration of hydronium ions (H3O+) per unit volume decreases. This means that the strength of the acid decreases.
Concentration of hydronium ions =`"Volume of solute (acid)"/"Volume of solution"`
APPEARS IN
संबंधित प्रश्न
What do we observe on pouring acetic acid on red and blue litmus papers?
(A) Red litmus remains red and blue litmus turns red.
(B) Red litmus turns blue and blue litmus remains blue.
(C) Red litmus turns blue and blue litmus turns red.
(D) Red litmus becomes colourless and blue litmus remains blue.
When acids react with metal, which gas is liberated?
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with iron filings.
Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.
On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue-green.
On the basis of the above reaction, what can you say about the nature of copper oxide?
What ions are present in the solutions of following substances? (write the symbols only)
Nitric acid
What is the chemical formula of washing soda?
What does a soda-acid type fire extinguisher contain? How does it work? Explain the working of a soda-acid fire extinguisher with the help of a labelled diagram.
State two uses each of the following compounds:
Sodium hydroxide
Explain the following:
Lead carbonate does not react with dilute HCl.
Answer the following question.
Identify the acid and base which form sodium hydrogen carbonate. Write the chemical equation in support of your answer. State whether this compound is acidic, basic, or neutral. Also, write its pH value.
Write any four physical properties of acids.
Which of the following gives the correct increasing order of acidic strength?
Which of the following statements is not correct?
Which of the following are present in a dilute aqueous solution of hydrochloric acid?
Vinegar is ______ in taste.
Which acid is present in milk?
Can we taste acids and bases to identify them?
On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution ______.