104. Solving a chemistry problem
Seller: Derkach
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Product description
- To coagulate 0.05 arsenic sulfide sol, one of the following electrolyte solutions can be added: 0.005 l 2n. NaCl; 0.005 l 0.03n. Na2SO4; 0.04 L 0.0005 N Na4[Fe(CN)6]. Which of the following electrolytes has the lowest coagulation threshold?
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