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Why could the percent composition of a nucleophilic substitution not be determined using a refractometer? by measuring the refractive index?
The venom of biting ants contains formic acid, HCOOH (Ka=1.80*10^-4 at 25 C). What is the pH of a 0.0065 M solution of formic acid?
to determine the order of reaction with respect to io3- use system 3 as the starting system and select another system
multiply this new K value for reaction 3 by the k value for reaction 2 to "add" the k values together in order to determine the K value of reaction 1.. From the K value of reaction 1, i converted it to E standard. would this be the correct way to ..
when doing a synthesis of 2-chloro-2-methylbutane 1. Why must the reaction be carried out at room temp 2. Why is the crude product washed with sodium bicarbonate
Which of the following IS NOT an example of a colligative property. A. vapor pressure reduction B. boiling point elevation C. freezing point reduction D. all of these are colligative properties
A 1.00 L solution of HCl is used to completely react with 300. mL of a KOH solution whose density is 1.1 g/L. What is the molarity of the HCl solution?
How do you calculate the pH of a solution given the concentration of OH- ions?
How many grams of 1-(chloromethyl)-3-methylcyclopentane and triphenyl phosphine would you need to create 0.560 g of (3-methylcyclopentyl)methyl) triphenylphosphonium assuming an 82% yield for the reaction
Aspirin has a pKa of 3.49 and that of acetic acid is 4.74. Explain the difference in acidity using the concept of resonance forms.
At what pH does the tripeptide, Ala-Val-Cys, have a net charge of -0.8? A. pH = 4.4 B. pH = 6.0 C. pH = 7.6 D. pH = 8.8 E. pH = 10.8
the balloon reaches an altitude of 100m, where the pressure was 658 mmHg and the temperature was -8c. what was the volume in liters of the ballon at these conditions?
Calculate: A) mL of NaOH needed to reach the equivalence point B) pH of the solution before the addition of any NaOH C) pH of the solution after the addition of 15.0 mL of NaOH
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