Chlorine is used by textile manufacturers to bleach cloth. excess chlorine is destroyed by its reaction with sodium thiosulfate, na 2 s 2 o 3 : na 2 s 2 o 3(aq) + 4cl 2g) + 5h 2 o (ako)  2 nahso4(aq) + 8hcl (aq) a. how many moles of na 2 s 2 o 3 are needed to react with 0.12mol of cl 2

1 answer
Question:

Chlorine is used by textile manufacturers to bleach cloth. excess chlorine is destroyed by its reaction with sodium thiosulfate, na 2 s 2 o 3 : na 2 s 2 o 3(aq) + 4cl 2g) + 5h 2 o (ako)  2 nahso4(aq) + 8hcl (aq)
a. how many moles of na 2 s 2 o 3 are needed to react with 0.12mol of cl 2

Answers

0.030 mol Na2S2O3 From the balanced equation, the molar ratio of Na2S2O3:Cl2 is 1:4. ∴ Moles of Na2S2O3 = 0.12 mol Cl2 x (1 mol Na2S2O3/4 mol Cl2)= 0.030 mol Na2S2O3

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