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Hydrogenation of a liquid triacylglycerol converts: a. the ester group to a ketone group, b. the ester group to a carboxylic group, c. the alkene group to an alkane group, d. the ester group to an alkene group
Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.
Calculate the enthalpy of the reaction: 2NO(g) + O2(g) --> 2NO2(g) given the following reactions and enthalpies of formation: 1/2 N2(g) + O2(g) --> NO2(g), delta H *A = 33.2 kJ 1/2 N2(g) + 1/2O2(g) --> NO(g), delta H *B= 90.2 kJ
A stainless steel spoon weighs 25.2 g and is at a temperature of 18.5 oC. It is immersed in 81.7 mL of hot coffee (T = 84.0 oC) in a Thermos flask.
Why is lip gloss long lasting containing petroleum? How many metric tonnes of 5%-S coal would be required to yield the H2SO4 needed to produce a 2.0-cm rainfall of pH 2.00 over an area of 100 square kilometers?
What is the pH change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.140 M with no change in volume?
Draw the structure of methyl red, and explain why it absorbs in the visible region of the spectrum. using resonance, explain why the acid form has a wavelength of max absorption at longer wavelength
Solid ammonium nitrate (NH4NO3) and solid calcium chloride were placed in water and the mixture was stirred. What is the precipitate?
An object has a mass of 5.95g. Assuming the density of water is 1 g/mL, what is the volume of the object including air?
Determine the pressure (in atm) inside the can if a metal can of 1.00 qt contains 0.150 grams of Helium at a temperature of 20 degrees Celsius also explain Is this pressure greater or less than standard atmospheric pressure?
There are 0.30 mol SrCl2 in every liter of solution. Calculate the number of moles of SrCl2 that were added. What is the limiting reactant?
The compound As2I4 is synthesized by reaction of arsenic metal with arsenic triiodide. If a solid cubic block of arsenic (d 5.72 g/cm3) that is 3.03 cm on edge is allowed to react
What is the molar mass of adrenaline in a solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49?
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