Classify NaNO2 into one of the following categories: strong acid, strong base, weak acid, weak base, or none of above. (Note: Ka of HNO2 = 4.5 x 10-4) a. Strong Acid b. Strong Base c. Weak Acid d.

Question

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31.07.2022 - 02:27

Classify NaNO2 into one of the following categories: strong acid, strong base, weak acid, weak base, or none of above. (Note: Ka of HNO2 = 4.5 x 10-4) a. Strong Acid b. Strong Base c. Weak Acid d.

Question:

A

Classify {eq}NaNO_2 {/eq} into one of the following categories: strong acid, strong base, weak acid, weak base, or none of above. (Note: {eq}K_a of HNO_2 = 4.5 times 10^{-4} {/eq})

B

Determine the pH of 2.00 M {eq}NaNO_2 (aq) {/eq}. (Note: {eq}K_a of HNO_2 = 4.5 times 10^{-4} {/eq})

a. pH = 1.52

b. pH = 5.18

c. pH = 8.43

d. pH = 8.82

e. pH = 12.48

Answers (0)

Reta April 5, 2023 в 22:48

The correct answer is (b) compound. Table salt, also known as sodium chloride (NaCl), is a compound made up of two elements, sodium (Na) and chlorine (Cl), chemically bonded together in a fixed ratio of 1:1. Therefore, it cannot be classified as an element or homogeneous or heterogeneous mixture. Energy is not a substance, and hence it cannot be classified as a type of matter. Hence, the answer (f) none of the above is also incorrect in this case.

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