136. Solving a chemistry problem
Seller: Derkach
Price: 1.20 USD
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Product description
Calculate the concentration of magnesium (mmol/dm3), which determines the hardness of water, if 18.45 cm3 of 0.0500 M solution of complexone III is used up to a blue color when titrating 100 cm3 of a sample at pH=9.7 in the presence of black T chromogen to a blue color.
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.