JAMB - Chemistry (2018 - No. 52)

Calculate the pH of 0.05 moldm\(^{-3}\) H\(_2\)SO\(_4\)

1.30

1.12

1.00

0.30

解释

Recall from pH formula pH = -Log [H+]

H2SO4 → 2H+ + SO42-

2H+ → 2 X0.05 = 0.1

pH= -Log [0.1] = 1

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