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3. (3 pts) You accidentally add too much hydrazine solution (H2NNH2, 30 ml) to the reaction....
4. (3 pts) You accidentally add too little hydrazine (H2NNH2, 0.25 mL) to the reaction test tube and the solution is already heating to almost 100 °C. How would you correct this mistake? If left unfixed, what would you expect the effect on the yield to be? 5. (3 pts) You accidentally added half the amount of 3-nitrophthalic acid to the reaction. You have already started filtering the first product. How would you correct this mistake? If left unfixed, what...
How do you calculate the theoretical yield for luminol from 3-nitrophthalic acid? Let's say we start with 2.5 grams of 3-nitrophthalic acid. NO, O 2 2 a.) NaOH/H2O, Na2S2 220 C, 3-4 min 100 'C, 5 min NH NH b.) CH3COOH (Triethylene glycol # solvent) 3-nitrophthalic acid (Does NOT chemiluminesce.) 3-nitrophthalhydrazide Does NOT chemiluminesce.) 2 NH Luminol (Does chemiluminesce.) Figure 11.1
For the following questions, provide the best possible solution to solve common mistakes that could occur in the luminol synthesis. If you believe there is no problem, simply indicate so. Assume that all lab equipment (thermometer, heating mantle, etc) are working properly. Briefly explain your answer. The question will receive a zero if no explanation is provided! 1. (2 pts) Sketch the diagram below that would illustrate the set up for the first step of luminol synthesis. Clearly label each...
Then you can start! 3 pts When the following reaction which occurs in acidic solution is balanced, the coefficient of His: Sn + NO2 --> SnO2 + NO 0 04 O 8 012 16 3 pts Sn(s) +2 Ag (aq --> 2Ag (s) + Sn2+, Question 33 How many electrons are transferred in the following oxidation-reduction reaction? (aq) 3 pts Question 30 How do we know a complex ion formed when NH3 reacted with Cult? Aprecipitate formed. We don't know...