140. Solving a chemistry problem

Product description

24, Determine the concentration of the solution (in accordance with the task number) in the indicated units according to the data given in Table 3 (solution "a" - standard, solution "b" - investigated).

Problem number 24

Detected ion or substance Mg2 +

Colored compound formation reaction

Concentration:

a) 0.1 g of MgCl2 in 250 ml of solution

b) Mg (in%) in the mineral when weighed 0.2 g in 50 ml of solution

Layer thickness cm 2.0 3.0

Optical density 0.222 0.046

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