Advertisements
Advertisements
Question
Water is never added to acid in order to dilute it why?
Advertisements
Solution
If water is added to a concentrated acid, the heat generated causes the mixture to splash out and cause severe burns, as it is an exothermic process. Thus, water is never added to acid to dilute it.
APPEARS IN
RELATED QUESTIONS
What happens to the temperature of the solution when an acid is neutralised?
Which chemical is injected into the skin of a person during the nettle leaf hair sting?
How can the effect of this sting be neutralised?
Give two examples of the following:
oxy-acid
Name an acid used as an eyewash.
Define an acid.
Write the balanced equations for the reaction required to convert insoluble lead (II) oxide into insoluble lead chloride.
While playing in a park, a child was stung by a wasp. Some elders suggested applying paste of baking soda and others lemon juice as remedy. Which remedy do you think is appropriate and why?
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
Write the important uses of hydrochloric acid and sulphuric acids.
Select an oxide which dissolves in water forming an acid.
