4. A 150.0 ml sample of 0.250 M HCN is titrated with 50.0 ml of 0.200 M NaOH. What are the concentrations of HCN and CN. in solution after the neutralization reaction occurs? HCN + NoOH 2 NoCN +H0 Net Ionc HCMay OH Ca) = CN To) + H,Oe)

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**Chemistry Titration Problem**

*Problem Statement:*

A 150.0 mL sample of 0.250 M HCN is titrated with 50.0 mL of 0.200 M NaOH. What are the concentrations of HCN and CN⁻ in the solution after the neutralization reaction occurs?

*Chemical Equation and Explanation:*

The neutralization reaction is represented as follows:

\[ \text{HCN} + \text{NaOH} \rightleftharpoons \text{NaCN} + \text{H}_2\text{O} \]

The net ionic equation for the reaction is:

\[ \text{HCN} + \text{OH}⁻ \rightleftharpoons \text{CN}⁻ + \text{H}_2\text{O} \]

This equation shows that hydrocyanic acid (HCN) reacts with hydroxide ions (OH⁻) from sodium hydroxide (NaOH) to form cyanide ions (CN⁻) and water (H₂O). This is a typical example of an acid-base neutralization reaction.
Transcribed Image Text:**Chemistry Titration Problem** *Problem Statement:* A 150.0 mL sample of 0.250 M HCN is titrated with 50.0 mL of 0.200 M NaOH. What are the concentrations of HCN and CN⁻ in the solution after the neutralization reaction occurs? *Chemical Equation and Explanation:* The neutralization reaction is represented as follows: \[ \text{HCN} + \text{NaOH} \rightleftharpoons \text{NaCN} + \text{H}_2\text{O} \] The net ionic equation for the reaction is: \[ \text{HCN} + \text{OH}⁻ \rightleftharpoons \text{CN}⁻ + \text{H}_2\text{O} \] This equation shows that hydrocyanic acid (HCN) reacts with hydroxide ions (OH⁻) from sodium hydroxide (NaOH) to form cyanide ions (CN⁻) and water (H₂O). This is a typical example of an acid-base neutralization reaction.
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