An individual educational development trajectory can be considered as a certain sequence of activity components aimed at realizing one's own goals of cognition. At the same time, it must correspond to the capabilities, abilities, motivation, and interests of a person. This activity is carried out with the organizing, coordinating, consulting support of the teacher and in cooperation with parents
Methods of titrimetric analysis are necessary to establish the qualitative and quantitative composition of the desired substance or ion. Let's analyze their varieties, main characteristics














