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Semenov [28]
2 years ago
12

What could have caused the mass to be higher than the initial mass​

Chemistry
2 answers:
ivann1987 [24]2 years ago
6 0

Answer:

Possibly the addition of oxygen from the atmosphere

Explanation:

Amanda [17]2 years ago
6 0
The oxygen comes from the atmosphere
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Calculate the pH of a solution whose H3O+ concentration is 2.1 x 10-3 M. Is the solution acidc, basic, or neutral?
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Substituting the given values, we get

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pH =  - (-2.678)

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