what effect would a temperature change have on the results for the reaction between NaOH and...
DATA I. Determining the Effect of Temperature lO 5 l.om Solution concentrations: [crystal violet]- [NaoH] = Ice Bath Temperature O.5℃ Reaction time 3:15 wn (trial 1) 3:27 trial2) Reaction time 4 sec-(trial 1) /s--(trial2) I. Determining the Rate Law for the reaction of NaOH and crystal violet. Hot Water Bath Temperature 55 C
What effect do you suspect the following will have on your judgment of the Gram reaction of an organism? Staining a thick smear made from an uneven cell suspense What will be observed and why? Using in old Grimm's crystal, violet preparation connecting crystallized dye: Substitution aqueous crystal violet for the Gram's Crystal violet:
12. The reaction between 1.0 x 104 M crystal violet and 1.0 M NaOH was monitored with UV-Vis spectroscopy. The reaction can be considered as an elementary reaction. I C25H30N3+(aq) + OH-(aq)- C2sH310N3(aq) From the experiment after 1000 s the [CV+) decreased to 50% of the initial concentration. What is the time required to consume 90% of the crystal violet?! A) B) 3322 s 5336 s 1100 s 705 s 3001 s D) E)
Pre-laboratory assignment Exp. 4 Rate Law 4. What is the color change to be observed between the reaction of crystal violet and sodium hydroxide? 5. Why is it necessary to react the sodium hydroxide in a greater concentration than the concentration of crystal violet?
why is an additional 3.00 mL of NaOH added to the reaction solution, beyond what is required for neutralization? A. To ensure that HCl is present in excess. B. To increase the temperature change that results from the reaction. C. To decrease the temperature change that results from the reaction. D. To ensure that NaOH is present in excess.
The rate of the crystal violet/NaOH reaction is given by the following generalized rate law: Rate = k’[CV+]y where k’ is the pseudo rate constant defined by k’ = k [OH-]x , where k is the actual rate constant The actual rate constant can be calculated using the pseudo rate constant and the [OH-] present in the reaction mixture. If the reaction mixture is prepared by mixing 5.0 mL of 1.00 x 10-4 M crystal violet solution with 5.0 mL...
1. The formula of crystal violet is C25H30N3Cl. Write a balanced molecular equation, using this formula, for the reaction of crystal violet with NaOH. Then writethe balanced net ionic equation.2. The structure of the crystal violet cation is shown in number 1. Which atom in this structure has a 1+ formal charge? Where is located?
1. What would be the effect on the enthalpy change determined if the temperature probe read 1.0°C lower than the true temperature? Explain. (2 pts)
What would be the effect on the enthalpy change determined if the temperature probe read lower than the true temperature? Explain? (this is just asking for an overall trend, nothing that requires specific data)
what effect would the following have on the reaction between salicylic acid and acetic anhydride? Support your reasoning by drawing the mechanism for the reaction and incorporating them in the mechanism. 1. anhydride sodium acetate 2.pyridine 3. boron trifluoride and 4. concentrated sulfuric acid