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jekas [21]
3 years ago
14

Which formula represents an ionic compound? 1) NO 2) KCI 3) HCI 4) CO,

Chemistry
1 answer:
AfilCa [17]3 years ago
7 0

Answer:

2)KCl

Explanation:

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Answer:

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Explanation:

<em>∵ [H₃O⁺][OH⁻] = 10⁻¹⁴. </em>

[OH⁻] = 1.5  x 10⁻⁹ M.

∴ [H₃O⁺] = 10⁻¹⁴/[OH⁻] = 10⁻¹⁴/(1.5  x 10⁻⁹ M) = 6.66 × 10⁻⁶ M.

∵ pH = - log[H₃O⁺]

<em>∴ pH = - log(6.66 × 10⁻⁶ M) = 5.17. </em>

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