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A container with 0.221 L of water is placed in a microwave and is then radiated with electromagnetic energy that has a wavelenth of 11.7 cm. The temperature of the water then rose by 65.5 0C. Calculate the number of photons that were absorbed by the water. Assume water has a density of 1.00 g/ ml and its specific heat is 4.184 J/ G 0C
Compound A (C10H16O3) is insoluble in H2O, but soluble in bicarbonate solution. It yields a 2,4-dinitrophenylhydrazone derivative. Catalytic hydrogenation of Compound A
What is the percent ionization of a 0.177 M solution of this acid?
To determine the volume of a gas using ideal gas law and evaluate the number of moles of a gas using ideal gas law.
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
A piece of magnesium with a mass of .2 grams is added to 50mL of 1 molarity of HCL at a temperature of 28 degrees celcius. When the magnesium disolves the solution reache a temperature 46 degrees celcius.
Ammonia gas reacts with hydrogen chloride according to the reaction given below, which must also be balanced. if 7.00g of NH3 is reacted with 12.0g of HCl in a 1.00L container at 25C
Consider a process carried out on 1.00 mol of a monatomic ideal gas by the following pathway from state A to state B. Pathway
What simple compund reacts with carboxylic acid to make lidocaine? Identify and draw the structures of two simpler compounds one from which should be a carboxylic acid, from which you could make lidocaine.
Calculate the molarity of a solution prepared by dissolving 78.6 g of KF in enough water to produce 225 mL of solution.
Determine the molar concentration of Na+ in a solution in which 6.315+/-0.004g of Na3PO4 has been added to 1000.0+/-0.4mL
Assume that the kinetic energy of a 1500kg car moving at 95 km/h can be converted entirely into heat. What amount of water could be heated from 20 C to 50 C by the car's energy?
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