The manual considers a wide range of problems in the theory of analytical chemistry and statistical processing of measurement results using programmable microcalculators and large computers of a single series. Contains information necessary for programming and their implementation, as well as the texts of programs for calculating titration curves, precipitation solubility, optimal conditions for photometric determination, and t. d. The textbook on the use of computers in chemical-analytical calculations is an addition to the book B. P. Vasiliev's "Analytical Chemistry" (M.) , High School, 1989). The publication of the manual is caused by the urgent need for this kind of literature due to the increasing practical use of computers in the educational process and research work. The manual, if necessary, briefly outlines the mathematical foundations of programming in relation to the calculation of chemical equilibriums and the solution of analytical problems. as well as statistical processing of analysis results using computers and programmable microcalculators such as "Electronics" . On this basis, the principles of machine calculation of equilibrium and solving other problems are considered, the drafting of specific programs is described in sufficient detail and the programs themselves are given with an indication of the conditions for their application. Having mastered the above material, the student can independently draw up programs for calculating various situations that arise in the conditions of practical solution of analytical problems, searching for optimal conditions for conducting a reaction or performing measurements.