The amount of I−3(aq) in a solution can be determined by titration with a solution containing a known concentration of S2O2−3(aq)
(thiosulfate ion). The determination is based on the net ionic equation

2S2O2−3(aq)+I−3(aq)⟶S4O2−6(aq)+3I−( aq)

Given that it requires 35.1 mL
of 0.420 M Na2S2O3(aq)
to titrate a 25.0 mL
sample of I−3(aq),
calculate the molarity of I−3(aq)
in the solution.

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

Building glycogen from glucose molecules is an example of

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.