2-methylocta-4,6-dien-1-amine The top picture shows 2-methylocta-4,6-dien-1-amin

Question

2-methylocta-4,6-dien-1-amine

The top picture shows 2-methylocta-4,6-dien-1-amine. The bottom shows an incorrect separation scheme of 2-methylocta-4,6-dien-1-amine.  

a.) Identify all of the mistakes in the incorrect separation scheme. Keep in mind that there will be more than one mistake in the scheme. For each mistake, give a detailed, scientific explanation of why it is incorrect.

b.) Draw a correct separation scheme to isolate 2-methylocta-4,6-dien-1-amine from the provided second molecule (NaCl). Make sure to indicate the phase of each chemical in every step (s, l, g, aq) AND write the separation technique used in each step (ie: vacuum filtration). The list below gives the reagents available in the lab. Use any of the reagents below to isolate the compounds. Remember that the simplest separation scheme is the best one. Try to avoid unnecessary steps.

10% aqueous NaOH, H2O, 5% aqueous NaHCO3, H3PO4, 6M HCl, anhydrous Na2SO4, 5% HCl, anhydrous MgSO4, Diethyl ether (ether), Saturated NaCl, CH3OH, Sodium borohydride (NaBH4), lithium aluminum hydride (LiAlH4), NaCl solid

Explanation / Answer

(a). Mistakes in the incorrect separation scheme are:

1. Distillation is done when we have two liquid substances. Here NaCl is present in solid form, so distillation is not preferred here for separation scheme.

2. Solid NaCl can't be ionized into its constituent ions unless it is dissolved in proper solvent or it is present in molten state.

3. Instead of using distillation process for separation scheme, filtration process could be correct scheme.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.