Chemical equation material
physical properties
Theortical
% yield
Actual=1.86
1-Aniline2-HCl3.2-Naphthol4.NaOH5.NaNO1.3gm2ml1.4gm20ml1.7gm Rrosedure: 1- Place abeet 1/3 g of aniline in a pre-weighed 10mL round-botiom flwk. Recond the actual weight of aniline. 2. Ndd 2ml of of concentratod HCE Swarl the flakk in an ice water bath. 3- To a clean and dry test tube, place 1.7 gm NaNO2 (from burente) to 10ml. water. Clatl this selotion in the ice-water bath. 4. Weigh 1.40 z of presaphthol in a 50mL beaker then ald 20mL of 104% NaOH, Stir the mixture with a glass nod until a homogeneoes solutice 0ccurs. Chill this solstion in the ice-water bath. 5. Ween all thee mistures are coolod to aboent 0 " C, une aidrepeer to transfer the NaNO2 whition inte the round boticen flask eenaining the aniline solution. Stir the micture thoroughly. Do not add the NaNO, solution too fast becanse the interal temperafure should be below 10C - 6. Tramer the reaction wikture freen the rocisd-bettom flak into the beaker coetaining fi-naphechol. Stir the mivare to avoid ageregation of ted precipitales. 7- Stir the mithate in the ise-water bach for 3-5 munutek. 8. Vacuum filter the procipitates and wash the filtrate with colS wates. 9. Allow the precipitaies to dry ee the vacum fileration se fir a fre minutes. Trmenfer this peodact inao a $0mL. Fickmeyer flask. t6- Hecryatline the rrude pendast in chaool. If - Vackant filier the arystals and weth them with cold ethatol. 12. Dry the erysials co a pre. wcighend wathen glasas. 13. Weiph and recond the yield of the reerystallired prialaet. 14- Determiae the melting para of the froduct. 15. Sobmer the product in a planic bag no your instructor 1-Aniline2-HCl3.2-Naphthol4.NaOH5.NaNO1.3gm2ml1.4gm20ml1.7gm Rrosedure: 1- Place abeet 1/3 g of aniline in a pre-weighed 10mL round-botiom flwk. Recond the actual weight of aniline. 2. Ndd 2ml of of concentratod HCE Swarl the flakk in an ice water bath. 3- To a clean and dry test tube, place 1.7 gm NaNO2 (from burente) to 10ml. water. Clatl this selotion in the ice-water bath. 4. Weigh 1.40 z of presaphthol in a 50mL beaker then ald 20mL of 104% NaOH, Stir the mixture with a glass nod until a homogeneoes solutice 0ccurs. Chill this solstion in the ice-water bath. 5. Ween all thee mistures are coolod to aboent 0 " C, une aidrepeer to transfer the NaNO2 whition inte the round boticen flask eenaining the aniline solution. Stir the micture thoroughly. Do not add the NaNO, solution too fast becanse the interal temperafure should be below 10C - 6. Tramer the reaction wikture freen the rocisd-bettom flak into the beaker coetaining fi-naphechol. Stir the mivare to avoid ageregation of ted precipitales. 7- Stir the mithate in the ise-water bach for 3-5 munutek. 8. Vacuum filter the procipitates and wash the filtrate with colS wates. 9. Allow the precipitaies to dry ee the vacum fileration se fir a fre minutes. Trmenfer this peodact inao a $0mL. Fickmeyer flask. t6- Hecryatline the rrude pendast in chaool. If - Vackant filier the arystals and weth them with cold ethatol. 12. Dry the erysials co a pre. wcighend wathen glasas. 13. Weiph and recond the yield of the reerystallired prialaet. 14- Determiae the melting para of the froduct. 15. Sobmer the product in a planic bag no your instructor
