In today’s experiment, you will determine the total concentration of calcium and magnesium ions in a hard water sample using EDTA in a solution buffered to a pH of 10.
Water Hardness: Determination with EDTA
Using a Volumetric Pipet
Squeeze the pipet bulb and do not force the pipet into the bulb.
Squeeze the pipet bulb and place the silicone end over the top of the pipet. Do not force the pipet into the bulb.
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