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Polar molecules are responsible for the absorption of mircowave energy by food items. Draw the Louis structure for each of the following substances, state which ones will absorb microwaves and why.
a. CS2 (Carbon Disulfide)b. CCl4 (Carbon Tetrachloride)c. CH3CH2CH2OH (Propyl alcohol (propanal))
Lactic acid has one acidic hydrogen atom in its structure. A 0.10 M solution of lactic acid has a pH of 2.44. Calculate the Ka of lactic acid.
closed container and the mixture is ignited the reaction products are CO2 and H2O. If 61.6 g of CO2 are actually produced in the reaction , what is the percent yeild of CO2?
if ammonia is obtained in 90% yield based on hydrogen, how many tons of hydrogen are necessary to produce 100 Mg of ammonia?
when 0.120 mol of carbonis burned in a closed vessel with 6.90g of oxygen. how many grams of carbon dioxide can form??
One mole of an ideal gas at 25C and 1 bar is allowed to expand adiabatically against a constant external pressure of 1.00 bar from 1.00 dm^3 to 10.00 dm^3. Calculate the final temperature
How many grams of nickel nitrate, Ni(NO3)2, must be dissolved to prepare 200 mL of a 0.152 M aqueous solution of the salt.
what is the final volume of the air saturated with water vapor if the total pressure is maintained at 1 bar? what are the mole fractions of N2, O2, and H20 in the moist air? Assume all gases are ideal
benzene ring with a 2 carbonyl joined by an O in the middle and a iso propal group is on the other carbonyl. (would be a symmetric anhydride if it weren't for the benzene and isop-ropral substituents on the two carbonyls)
suppose 45.0 g of water at 85 degree celcius is added to 105.0 g of ice at 0 degree celcius. The molar heat of fusion of water is 6.01 kJ mol-1, and the specific heat of water is 4.18 J/g degree celcius.
If 17.8 grams of KOH dissolve in enough water to make a 198-gram solution, what is the concentration in percent by mass.
a v 535 ml at 1.00 atm. what is the volume at 675 torr?b v 2.07 l at 110.9 kpa. what is the volume at 0.992 atm?c v
A 2.00 gram sample of unknown gas is placed into a 296 mL flask at 17°C and found to have a pressure of 717 torr. What is the pressure (in kPa) if the sample is moved into a 200 mL flask at 352K
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