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Calculate the percent composition of each element (H, C, N, O) in ammonium carbonate and acetic acid (CH3COOH) to four significant figures.
a chemical reaction release 1240 J of energy. the energy is all absorbed by water (423 g) containing the reactants. if water was initially at 19.6 degrees, what will be it final temperature
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
Caffeine, C8H10N4O2, is a stimulant found in tea and coffee. A sample of the substance was dissolved in 41.5 g of chloroform, CHCl3, to give a 0.0940 m solution.
A 130 mL stock solution contains 1.5 M CuF2. When 13 mL of the stock solution is diluted to 25 mL, what will the concentration of F- ions be?
At what Kelvin temperature will the reaction proceed 4.50 times faster than it did at 309 K?
What factor determines whether a carbon atom in a compound is chiral? Draw the Lewis structure for each of the following functional groups: alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine.
Before the collision what is the complete Eigen-function of the molecule? assuming the surface is located at x=0, and V (x =0)=0 and tha tthe molecule is located at a position X>>0. which means the molecule can be treated as a free mass in the re..
A two-component mixture of volatile liquids was separated by gas chromatography using a 15 meter capillary column. The separation was insufficient with this column to see resolution of both fractions.
at 1 atm, how much energy is required to heat 55.0 grams of water at -24.0 degrees Celsius to water at 157.0 degrees Celsius
How many grams of silver nitrate does it take to react completely with 7 mol Cu?
How much heat in Kilojoules must be removed from a glass of water that contains 100G if water to lower its temperature from 30C to 15C.
Examples are BrCl, IBr, BrF, and ClF. Which compound is expected to have the highest boiling point aqt any given pressure? Please explain why
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