Chemistry, 21.04.2020 19:04, annette211pdd8v9
The quantity of antimony in a sample can be determined by an oxidationâreduction titration with an oxidizing agent. A 7.79 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb3+(aq). The Sb3+(aq) is completely oxidized by 32.7 mL of a 0.135 M aqueous solution of KBrO3(aq). The unbalanced equation for the reaction is BrOâ3(aq)+Sb3+(aq)â¶Brâ(aq)+Sb5+(aq) (unbalanced) Calculate the amount of antimony in the sample and its percentage in the ore.
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Chemistry, 22.06.2019 17:30, sheazy3709
The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?
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Chemistry, 22.06.2019 21:30, shiannethorn
How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh â na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l
Answers: 3
The quantity of antimony in a sample can be determined by an oxidationâreduction titration with an o...
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