Question

If each of these represents a concentration of [H3O+]
, which one is most acidic?(1 point)
Responses

1 x 10−3
1 x 10−3

1 x 10−5
1 x 10−5

1 x 10−8
1 x 10−8

1 x 10−13

Answer 1

To determine the acidity based on the concentration of \([H_3O^+]\), we need to remember that a higher concentration of \([H_3O^+]\) means a more acidic solution.

The given concentrations are:

- \(1 \times 10^{-3}\)
- \(1 \times 10^{-5}\)
- \(1 \times 10^{-8}\)
- \(1 \times 10^{-13}\)

Comparing these values, \(1 \times 10^{-3}\) has the highest concentration of hydronium ions, which means it is the most acidic solution.

Therefore, the most acidic concentration is **\(1 \times 10^{-3}\)**.