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.0152 mol of salicylic acid from 2.1 g of salicylic acid
.0424 mol of acetic anhydride from 4.0 mL of acetic anhydride
Based on the amounts of reagents specified in this experiment, calculate the theorectical yield of asprin (180g/mol) in terms of moles and grams.
What is the freezing point of a solution of 224 g of ethylene glycol (C2H6O2) dissolved in 1000 g of water?
A sample containing both enantiomers is found to have an observed rotation of +0.87 degrees in a one dm tube at a concentration of 0.025 g/mL. What is the optical purity of the sample? What is the % of the dominant enantiomer in this sample?
When 2.00 mol of NOCl(g) was heated to 225 degrees celcius in a 400L steel reaction vessel, the NOCl partially decomposed according to the equation 2 NOCl(g) -->2 NO(g) + Cl2(g)
A solution containing 100 g of an unknown liquid and 900 g water has a freezing point of - 3.33 oC. What is the molar mass of the liquid? Kf = 1.86oC/m
The endpoint in the titration is "overshot" A. is the reported molar concentration of the hydrochloric acid solution too high or too low. EXPLAIN
The equilibrium constant Kc for the decomposition of phosgene, COCl2, is 4.63 x 10^-3 at 527 deg. C
How much work is done in kilojoules for the reaction of 6.40 of acetylene at atmospheric pressure if the volume change is -2.76.
One of those bands consists of radio waves with a wavelength near 20.m . Calculate the frequency of these radio waves. Be sure your answer has the correct number of significant digits.
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
Produce a buffer solution that has a pH of 5.32. You already have a solution that contains 10 \rm mmol (millimoles) of acetic acid. How many millimoles of acetate
A steel tank has a volume of 438 liters and is filled with 0.885 kg of Oxygen. Calculate the pressure of oxygen at 21 degrees Celsius.
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