CHEMICAL PROBLEMS With Key FOR USE IN COLLEGES AND SCHOOLS BY T. E. THORPE, B.Sc. (VICT.), PH.D. F.R.S. REVISED AND ENLARGED BY W. TATE, Assoc. N.S.S. (HONOURS), F.C.S. WITH A PREFACE BY SIR H. E. ROSCOE, B.A. PH.D. F.R.S. M.P. NEW EDITION London MACMILLAN AND CO. AND NEW YORK 1891 The Right of Translation and Reproduction is Reserved Copies Received 1870-1874. First Edition Printed for MACMILLAN & Co., 1874. With Key 1878. Reprinted 1880, 1881, February and December 1882, 1885, April and December 1888, 1890. New Edition 1891. PREFACE THE following complete series of Questions and Problems in Elementary Chemistry will prove a great boon to those engaged either in teaching or in learning the science. They were prepared by my friend DR. THORPE, with special reference to our junior classes in Owens College, in which my "Elementary Chemistry" is used; but they will of course also be available where any other modern text-book is employed. My experience has led me to feel more and more strongly that by no method can accuracy in a knowledge of Chemistry be more surely secured than by attention to the working of well-selected problems, and Dr. Thorpe's thorough acquaintance with the wants of the student is a sufficient guarantee that this selection has been carefully made. I intend largely to use these Questions in my own classes, and I can confidently recommend them to all teachers and students of the science. HENRY E. ROSCOE. Oct. 15, 1870. 237344 |