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Following sodium fusion and fracture of the test tube into 15 mL of deionized water (in a 50 mL beaker), the next step is to ________.     Add phenolphthalein indicator and perform a titration     Filter the solution to remove insoluble material and glass fragments     Perform the chemical test for formation of lead sulfide (PbS)     Perform any of the three chemical tests for sulfur, nitrogen, or a halogen     Discard the solution into the sink and clean the beaker

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What is Arsenics specific heat at room temperature?

Chemistry

Aluminum (molar mass = 26.9815 g/mol) is refined from its oxide ore, Al2O3. If the electrical current that is flowing is 750.00 A, how long will it take to deposit 503.36 grams of aluminum? Report your answer in hours with 1 decimal place precision. Your Answer: Your Answer

The amount of iron in a meteorite is determined by a redox titration using KMnO4 as the titrant. A 0.4185-g sample is dissolved in acid and the liberated Fe3+ quantitatively reduced to Fe2+ using a Walden reductor. Titrating with 0.02500 M KMnO4 requires 41.27 mL to reach the end point.(a) Determine the %w/w Fe2O3 (MW = 159.69 g/mol) in the sample of meteorite.(b) Determine the %w/w Fe3O4 (MW = 231.533 g/mol) in the sample of meteorite.

In the following reaction which element got oxidized : 3HNO3 (aq) + Als) Al* + 3NO2(9) + 30H a. Aluminum ( Al) O b. Hydrogen (H) O c. Nitrogen (N) O d. Oxygen (O) ge e Syllabus Jump to... wge jlalu tey Student (Log out)

Electrolysis is a type of redox reaction. The electroloysis of sea water is one potential process for production hydrogen gas used as a fuel. During the electrolysis of sea water, a secondary side reaction is possible due to sufficient salt concentrations. In this reaction, aqueous sodium chloride undergoes a redox reaction to produce sodium and chlorine gas. wwww a. Write the balanced molecular equation showing the electrolysis of sodium choloride. Use phase labels b. Write the oxidation half reaction c. Write the reduction half reaction d. How many electrons are transferred in this reaction?

A 100 ml sample of pond water was analyzed using Winkler method to determine its oxygen demand. It took 32.4 ml of 0.0100 M Na2S2O3 to react with Iodine. Calculate the oxygen for this pond water.

3c₂2- 1 Tap here or pull up for additional resources + 2 (s) OH- Complete and balance the following redox reaction in acidic solution H₂O₂(aq) + Cr₂O72- (aq) → O₂(g) + Cr³+ (aq) 3 O Reset e (1) H* Question 14 of 14 e 5 LO Cr 6 MacBook Air H 7 个 • x H₂O 8 H₂O* 9 (aq) H₂O O Submit

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35dm3 of hydrogen is produced at a total pressure of 1 atm by the action of acid on a metal. Calculate the workdone by the gas in pushing back the atm in a. dm3 atm b. joules.