he is not making calcium acetate. he is making a sodium, calcium, acetate, chloride solution.
To match sodium acetate to calcium chloride, you want 2 sodium acetates for each calcium.
calcium chloride is 110 g/mole
sodium acetate is 82 g/mole
So mix them at a ratio of 164 g anhydrous sodium acetate per 110 g anhydrous calcium acetate.
Any volume iof water you want as long as everything dissolves.
