Given the following data Dissolved Oxygen Titration Data Trial 1 Preparation of titrant 0.4455 g Na2S203 5H20 in 50.0 mL water Mass of water sample used (g) 5.21 g Initial mass of NazS203 soln and Beral pipet(g) 12.40 g Final mass of Na2S203 soln and Beral 12.20 g pipet(g) MW of Na2S203•5H2O 248.11 g/mol MW of Na2S203 158.11 g/mol MW of O2 32 g/mol Calculate the following: a) Concentration of Na2S203•5H20 in mol/g c) DO of sample (ppm)

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Given the following data
Dissolved Oxygen Titration Data
Trial 1
Preparation of titrant
0.4455 g NazS203•5H20 in 50.0 mL water
Mass of water sample used (g)
5.21 g
Initial mass of Na2S203 soln and
Beral pipet(g)
12.40 g
Final mass of Na2S203 soln and Beral
pipet(g)
12.20 g
MW of Na2S203•5H2O
248.11 g/mol
MW of NazS203
158.11 g/mol
MW of O2
32 g/mol
Calculate the following:
a) Concentration of Na2S203•5H20 in mol/g
c) DO of sample (ppm)
Final answer: 3 significant figures
Transcribed Image Text:Given the following data Dissolved Oxygen Titration Data Trial 1 Preparation of titrant 0.4455 g NazS203•5H20 in 50.0 mL water Mass of water sample used (g) 5.21 g Initial mass of Na2S203 soln and Beral pipet(g) 12.40 g Final mass of Na2S203 soln and Beral pipet(g) 12.20 g MW of Na2S203•5H2O 248.11 g/mol MW of NazS203 158.11 g/mol MW of O2 32 g/mol Calculate the following: a) Concentration of Na2S203•5H20 in mol/g c) DO of sample (ppm) Final answer: 3 significant figures
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