ANA 110 · Analytical Chemistry Practice
Session 7 · Hour 1 · A hold that selects
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Hold the hardness
0/6
A ligand holds a metal
A chelate holds with more than one tooth
EDTA is a six-tooth hold
A buffer holds the pH for the join
Calcium and magnesium are hardness
A metal indicator is the witness
CheckName EDTA’s job. Then write hardness as calcium plus magnesium. Buffer the pH. Hold the metal. The colour is the witness.