111. Solving a chemistry problem
Seller: Derkach
Price: 1.18 USD
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Product description
Calculate the sample to prepare 250 ml of the arsenic standard solution. 0.001 mg of arsenic in a sample taken gives a noticeable dark brown color by reaction with the reagent. A.m. arsenic 74.92. Mm. arsenic oxide 197.84.
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.