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Determine the specific heat of an unknown metal when 25.0 g of the metal, initially at 80.0?C is added to 100.0 mL of water initially at 20.0?C. The final temperature of the mixture is 21.6?C.
Calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic: a) a balloon is heated by adding 850J of heat. It expands,
Synthesize 2-butanol from an aldehyde and a grignard reagent.Show two possible routes to the product.
Write a series of nuclear equations to represent the bombardment of Al-27 with a neutron to form a product that then undergoes an alpha decay followed by a beta decay
Give equations for the reaction of aspirin with the following: a. acetyl chloride/ pyridine b. methanol/HCl/heat c. sodium bicarbonate, room temperature d
A 5 m^3 tank comtains methane. the initial temperature and pressure are P=1bar T=18 degrees C. calculate the P following the each of the successive steps using the ideal gas law
consider 25.0 g of water at 21.7degc that are mixed with 25.0 g of water at 43.3degc in a foam cup calorimeter. the
Define the terms exothermic and endothermic. In a calorimetric experiment, how does one determine whether a reaction is one or the other?
a piece of galena has a volume of 3.9 cm3. if the density of galena is 7.5 gcm3 what is the mass in kg of that piece of
The healthcare provider recommends that she take the Benedict's test. Assume that the glucose levels of the patient are high. State the composition and the properties of the ketohexose derived from fruit jam.
Which of the following ionic compounds has the largest lattice energy (i.e., the lattice energy most favorable to a stable lattice)?
The sugar in deoxyribonucleic acid, DNA, is called 2-deoxy-D-ribose. This sugar has two stereocenters. 2-Deoxy-D-ribose has how many diastereomers
what is the cutoff temperature at which the reaction is
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