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goldenfox [79]
3 years ago
9

The element sodium occurs naturally as a light solid with shiny metallic appearance. The diagram shows what will happen when a p

iece of pure sodium is placed in water. This indicates rat the properties of the element in the saw column on te periodic table as sodim have
Chemistry
1 answer:
Zepler [3.9K]3 years ago
4 0

Answer:

asdfghjkl;'

Explanation:

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Calculate the pH of a 0.10 M HCN solution that is 0.0070% ionized.
Anastaziya [24]

Answer:

D) 5.15

Explanation:

Step 1: Write the equation for the dissociation of HCN

HCN(aq) ⇄ H⁺(aq) + CN⁻(aq)

Step 2: Calculate [H⁺] at equilibrium

The percent of ionization (α%) is equal to the concentration of one ion at the equilibrium divided by the initial concentration of the acid times 100%.

α% = [H⁺]eq / [HCN]₀ × 100%

[H⁺]eq = α%/100% × [HCN]₀

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