BACKGROUND READING. Look up Experiment 24 in the given link of the textbk: https
ID: 813758 • Letter: B
Question
BACKGROUND READING. Look up Experiment 24 in the given link of the textbk:
https://books.google.com/books?id=X3KX6p8hnlIC&pg=PA286&lpg=PA286&dq=Describe+the+chemistry+that+was+occurring+in+the+experiment+between+the+time+when+solutions+A+%26+B+were+mixed+and+STOP+TIME&source=bl&ots=AelJicDAuP&sig=XyqE58u6YuXLpsD0VSxKHedSYdc&hl=en&sa=X&ei=ouMHVcDOCoj8oQTv2oKoBg&ved=0CCkQ6AEwAQ#v=onepage&q=Describe%20the%20chemistry%20that%20was%20occurring%20in%20the%20experiment%20between%20the%20time%20when%20solutions%20A%20%26%20B%20were%20mixed%20and%20STOP%20TIME&f=false
c) - When doing the kinetic trial , Susan forgot to include the deionized water. Will this omission hasten or delay the formation of the blue color in the trials (Exclusive of Trial 6)? Explain.
-When doing the kinetic trial, Oscar mistakenly omitted the sodium thiosulfae solution. How will this omission change the appearance of the resultant solution (from mixing solutions A&B) from that of a correctly completed expiernment? Explain your reasoning.
- When doing the kinetic trial, Peyton mistakenly omitted the starch solution from the kinetic trials. How will this omission change the appearance of the resultant solution (from mixing solutions A&B) from that of a correctly completed expiernment? Explain your reasoning.
- Of the three chemists above, Which chemist will have the most accurate results? Explain.
d) State the effect that each of he following changes has on the reaction rate in this experiment (increase, decrease, or no effect). (Assume no volume change for any of the concentration changes.)
- An increase in the H2O2 concentration. Explain.
- An increase in the volume of water in solution A. Explain.
- An increase in the Na2S2O3 concentration. Explain.
-The subsititution of a 0.5% starch solution for one at 0.2%. Explain.
e) The temperature of the warm water bath is recorded too high. How will this technique error affect the reported activation energy for the reaction ---- too high or too low? Explain.
Explanation / Answer
e)Too high,Activation energy is the amount of energy for the reaction to take place so if the bath is actually colder than recorded, the amount of kinetic energy the particles have is actually less and not as much energy is needed for a reaction to occur. Therefore the reported activation energy would be too high.
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