Theoretical organic chemistry / by Julius B. Cohen.

  • Julius B. Cohen
Date:
1902
Catalogue details

Licence: Public Domain Mark

Credit: Theoretical organic chemistry / by Julius B. Cohen. Source: Wellcome Collection.

    46/604 (page 26)
    26* THEORETICAL ORGANIC CHEMISTRY ch. it 8. By what methods can a carbon compound be shown to contain (a) nitrogen, (b) chlorine, (r) phosphorus? (Lond. Int. M.B. 1899.) 9. Describe any method commonly used for the determination of sulphur in an organic compound. (B. E, Elem. IS92.)1 10. In the estimation of nitrogen by the soda-lime method, 0'2io2 gram of benzamide was taken and the evolved ammonia absorbed in 25 c.c. of half-normal sulphuric acid solution ; the residual acid required 21 '52 c.c. of half-normal soda (NaOH) solution for neutralisa¬ tion. What was the percentage amount of nitrogen in the benzamide ? (B.E. Hons. 1891.) 1 B.E. = Board of Education, formerly the Sc'ence and Art Department, South Kensington.