Answer:
pH= 3.82
Explanation:
Sodium ethanoate or sodium acetate (CH3COONa) ionises completely.
Ethanoic acid or acetic acid (CH3COOH), ionises partially because it is a weak acid.
MA= output force/input force
MA= 100N/20N
MA= 50
The last row going across
The formula of butane is C4H10 but I don't how many atoms it contains though