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4 is a moderately weak acid.

Taking into account that 0 is the most powerful of acids and that 7 is a neutral substance.

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13y ago
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11y ago

yes, the pH is less than 7

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10y ago

Yes, the pH level is less than 7.

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Q: A solution of an acid in water has a pH of 4 which is slightly acidIs this a solution of weak acid?
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