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An air conditioner is a refrigerator with the inside of the house acting as a cold reservoir and the outside atmosphere acting as the hot reservoir. Assume that an air conditioner consumes 1.50 X 103 W of electrical power, and that it can be idealized as a reversible Carnot refrigerator. If the coefficient of performance of this device is 2.50, how much heat can be extracted from the house in a 24 hour period?
What volume of 0.25 M HNO3 (aq) reacts with 4.8 ml of 0.150 M Na2CO3 (aq) when the two solutions are mixed?please show work step by step.
10 grams of potassium chlorate (KClO3) is heated and decomposed, what mass of oxygen gas will be formed?
the mass of the flask is measured when the outside of the flask is wet. However in part B.3 the outside of the flask is dried before its mass is measured.
A quantity of N2 occupies 62.2 L at a particular temperature and pressure. Its density is 0.900 g/L. How many moles of N2 are in the container?
Calculate the number of moles of solute present in each of the following solutions: a)245 mL of 1.50 M HNO3 b) 50.0 mg of an aqueous solution tha tis 1.25 m NaCl c) 75.0 g of an aqueous solution that is 1.50% sucrose by mass
Consider the following on data on Bell Lake, Based on the Ksp for Al(OH)3 of 1 x 10-33 what are the highest theoretical concentrations of Al3+ at these pH values, in µg /L?
In the acid-base reaction between Sr(OH)2 and HNO3, 0.75 L of 0.85 M Sr(NO3)2 is formed upon the reaction of 0.515 L of HNO3 solution and excess Sr(OH)2.
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
Consider two DNA molecules: one 400 base pairs long, the other 800 base pairs long. Assuming that each is a rigid rod of diameter 25 Å, with a length of 3.4 Å per base pai.
Calculate the molar concentration of illinic acid and of its conjugate base illinate ion (in moles/L; M) in a 3 M illinate buffer at pH 7.5. The pKa of illinic acid is 6.7.
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
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