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Construct a simulated 1H NMR spectrum for 1,1-dichloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. Items may be used more than once. Peak heights do not represent integration.
The weak acid HZ has a ka of 2.55*10^-4. What is the pH of a .075 M HZ? What is the pOH of .045 M HZ?
if i have 0.621 mole of potassium chlorate that decomposes by heat, what is the amount of the oxygen in moles?
For the same atoms at the lattice points, which lattice exhibits the lowest density? (please explain your reasoning) (A) body-centered cubic (B) face-centered cubic
The compound noradrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for noradrenaline?
under anaerobic conditions lactic acid builds up due to the following reaction. A) prochiral b) archiral c) chiral d) both archiral and prochiral
Calculate the standard free energy change for silver sulfate dissolution at 25 degrees Celsius.
An aqueous solution is made by dissolving 24.5 grams of manganese(II) chloride in 466 grams of water.
the active ingredient in toothpaste is sodium fluoride, an anticavity agent. a 170 g tube of toothpaste lists the concentration of sodium fluoride a s0.24%. how many grams of sodium fluoride are in a toothpaste.
2A(g) + 3B(g) → A2B3(g) If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)
A mixture of nitrogen and liquid ethanol in a closed constant-volume container has a partial pressure of 101 mm Hg of nitrogen and 66.2 mmHg ethanol at 27 C (300 K)
Calculate the final temperature of 37 mL of ethanol initially at 11 degrees C upon absorption of 624 J of heat. (density of ethanol =0.789 g/mL).
A 100.0-g sample of water at 27.0oC is poured into a 75.0-g sample of water at 89.0oC. What will be the final temperature of the water?
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