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A certain titration is carried out using the following unbalanced equation:
H2SO4(aq) + NaOH (aq) --> H2O (l) + Na2SO4(aq)
If 37.89 mL of 2.0 M sodium hydroxide are used to titrate a 45.00 mL sample of sufuric acid, what is the molarity of the acid?
Enter only the number rounded to the correct number of significant figures; do not enter any units.
phenylacetic acid c6h5ch2cooh is one of the substances that accumulates in the blood of people with phenylketonuria an
If we could take IR spectra on decanedioyl chloride and the product that you made, which of these two molecules would you expect to show higher C=O stretching frequency. Why
Compound A is a water-soluble liquid that gives positive 2,4- dinitrophenylhydrazine and iodoform tests and a negative Tollens test. The IR spectrum of A has bands at 2950, 1720 and 1370 cm-1.
acetic acid has a Ka of 1.8x10^-5. what is the pH of a buffer solution containing .15 M CH3COOH(acetic acid) and .15 M CH3COO^-?
The percent composition by mass of an organic compound is: 32.01%C, 4.03%H, and 63.96%O. if its molarcular mass is 150 amu, what should be its molecular formula
A syringe filled with air can be used to test the relationship between the temperature and the volume of a sample of gas. The syringe has a movable plunger that allows an enclosed sample of gas to be held at a constant external pressure, so the ga..
From your calculation of the specific rotation for L-erythrose 4-phosphate in Q4. above determine the specific optical rotation, [?]D for D-erythrose 4-phosphate? A) -100 B) -10 C) 100 D) 10 E) -1
The Lyman series in the hydrogen atom corresponds to transitions that originate from the n=1 level in absorption or that terminate in the n=1 level for emission. Calculate the energy, frequency, and wavelength of the least and most energetic transiti..
whats the difference between adding zinc metal to iodine with water and acetic acid vs. adding zinc metal to iodine
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. M(OH)2 (s) M^2+ (aq) + 2OH- (aq) Ksp=2e-16 M(OH)2 (s) + 2OH- (aq) M(OH)4 ^2- (aq) Kf=0.03 Estimate the solubility of M(OH)2 in a solution buffered at pH= 7.0, 10.0, and 1..
a common driving force in displacement reactions? a. precipitation b. evolution of a gas c. formation of a weak or nonelectrolyte d. the transfer of electrons
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
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