Recent content by googol
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Back Titration of Ethanol in Vodka with Excess Dichromate Solution
no first i took 2ml of pure vodka, and added it to a volumetric flask & filled it to the mark. The fe(11) solution, I took 4grams Fe, put it into a volumetric flask and filled it to the mark- googol
- Post #5
- Forum: Biology and Chemistry Homework Help
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Back Titration of Ethanol in Vodka with Excess Dichromate Solution
Oh sorry, the volume of the solutions for both was a 100mL .. because we put 4 grams of each (iron and dichromate) into separate volumetric flasks and then filled the volumetric flasks to the mark (to the 100ml mark) ... For the vodka, I initially took 2ml (undiluted) and added it to a...- googol
- Post #3
- Forum: Biology and Chemistry Homework Help
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Back Titration of Ethanol in Vodka with Excess Dichromate Solution
In the reaction of Vodka (ethanol) w/ excess dichromate solution volumes: Diluted vodka = 5ml 6.0M H2SO4 = 3ml K2Cr2O7 = 5ml In the back titration of excess dichromate with iron(ll) solution, the volume "delivered" of iron(ll) solution in order to titrate the excess dichromate is...- googol
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- Replies: 5
- Forum: Biology and Chemistry Homework Help
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Producing Phosphoric Acid: Calculating Percent Yield
Approximately 12 million kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers, detergents, and agents for water treatment. Phosphoric acid can be prepared by heating the mineral fluoroapatite (Ca5(PO4)3F) with sulfuric acid in the presence of water. Ca5(PO4)3F + 5H2SO4 +...- googol
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- Acid Percent Percent yield Yield
- Replies: 1
- Forum: Biology and Chemistry Homework Help
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Kinematics in 1 dimension - 2 objects interlinked, find time
A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.5 m/s^2; after 4.1 seconds he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant velocity of...- googol
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- 1 dimension Dimension Kinematics Time
- Replies: 1
- Forum: Introductory Physics Homework Help