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Experiment 1: What Household Substances are Acidic or Basic?
Table 1: pH values of common household substances
    Substance
    pH Guess
    pH Paper
    Vinegar
    5
    2.2
    Sodium bicarbonate (NaHCO3)
    10
    8.3
    Lemon Juice
    5
    2.0
    Green Tea
    7
    6.2
    Milk
    7
    6.7
    Sulphuric acid (H2SO4)
    4
    1
Questions
1. Compare and contrast acids and bases in terms of their H+ ion and OH- ion concentrations.
The key difference between acid and base is that when an acid is dissolved into water then it releases H+ ions while, a base liberates OH- ions after its dissolution into water. In other words, a solution that consists of a number of hydronium ions but few hydroxide ions is known as; acidic and a solution which contains numerous hydroxide ions and little hydronium ions is called as; basic.
2. Name two acids and two bases you often use.
Sulphuric acid (H2SO4) and Acetic acid (CH3COOH) are those acids which are often used by me in daily life whereas; Sodium bicarbonate (NaHCO3) and Detergent are the bases applied by me in a...