Question

to the separatory funnel and shake a rate the layers (Step 3), Return the mu we aqueous layer with 10 ml of dichloromethane observations in your laboratory notebook dichloromethane layers and return the ane layers and return them to the separatory funne With 10 mL of IM NaOH (Step 8). Describe w OF IM NaOH (Step 8). Describe what happened in yo . Separate the layers (Step 9) and extract the organ e times (Steps 10 - 13). Record your observations in your laboratory WP) and extract the organic layer with 10 mL of IM Did your ex w your experimental findings agree with your predictions? If not, work predictions? If not work with you to figure out why they disagree. Bue o top Waste Disposal - Week One www car Blue cuer Aqueous waste should be collected in bottles in hood 19. uld be collected in bottles in hood 19. Organic waste should be pl. in the appropriate container in the lab. Hory notebook. Cuc per Post-Lab Questions Week One: 1. Nile Blue in acid solution is a protonated imine with a pk is given below. Most protonated imines have pka values for the conjugate acid of Nile Blue and use them to explain why it is less acidic than a whe top s in your laboratory notebook our promoure labor i ut Lotte imine. (re ution is a protonated imine with a pka 10.1. The structure of an imine Ost protonated imines have pka values of 7-8. Draw resonance structures seorate C 2. imine Complete the separation scheme (page 83) for the compounds shown below that are dissolved in an ether solution. These compounds were all used in Part II To simply separation scheme, the structures of the molecules have been abbreviated. AH is used for the structure of benzoic acid. Note that H represents the carboxylic acid hydrogen. The molecule ethyl-4-aminobenzoate has been given the abbreviation :B.The: is representative MO protonate imine ether solution HN ethyl 4-aminobenzoate nathalene
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Answer 1

Nile Blue HAN ple 7-8 pla 10.1 TUBO Because of Entented ring Elechon density is high, which stabilizes the charge on CCater) on Wibogen.. din Normal inines sech donation is Extensive. In Nile Bleue $ the charged in species is stable. N Efter solution AH - b Neu. AH is a adic, in basic Conditan a o is formed.. - Add Base; mane solection balle by adding Nadu, AH becomes charged and goes into aqueous phase Step! BH. R- Step 2 add Alid, make solution acidic, Belome positively charged and goes into a queans R-NH2 Phar acidic a lidic - remains 5:43 - naphalene beeng neitter basi enor in Ether solution Corganic phases VI TH