CH-760
Concentration
Chemistry · Secondary 3 · Medium · Concentration
A 1.00 dm³ solution contains 9.65 g of sodium thiosulfate pentahydrate, Na₂S₂O₃·5H₂O. What is the concentration of Na₂S₂O₃ in mol/dm³?
(Relative atomic masses: Na = 23, S = 32, O = 16, H = 1)
(Relative atomic masses: Na = 23, S = 32, O = 16, H = 1)
- 0.019 mol/dm³
- 0.039 mol/dm³
- 0.24 mol/dm³
- 0.40 mol/dm³
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