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A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the energy of the wave.
A cylinder of propane gas at 25oC has a volume of 32.0 liters. The pressure of the gas in the cylinder is 9 atm. To what temperature (in oC) must the gas be heated to increase the pressure by 2 atm? Assume ideal behavior
Calculate q,w,delta U and Delta H for each segment and for the cycle in which the direction of each process is reversed. In the graph all it says is the P initial =16.6 bar and Vinitial=1.00L and P final=16.6 bar and V final =25L
Molecular and ionic equations, What would be the proper balanced molecular and net ionic equations for each of these neutralization reactions?
Compute the enthalpy change, , for this reaction per mole of (Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )
Find the pH of a 0.15 M solution of ammonia, NH3. Kb = 1.8*10^-5
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
How much heat is required to warm 221 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
A fellow student is having trouble understanding polar covalent bonds, non-polar covalent bonds, and ionic bonds. Describe how you would help your the fellow student
how much energy is liberated when 366 g of mercury (c=0.139j/g degrees celsius)cools from 77.0 C to 12.0 degrees celsius?
How much heat is required to warm 1.20 kg of sand from 26.0 0C to 100.0 0C?
Calculate the molar solubility of AgBr in a 1.00 M aqueous solution of ammonia. Then calculate the solubility of AgBr in pure water, and compare the two solubilities. (Ksp for silver bromide is 7.7x10 -13 and Kf for Ag(NH3)2+ is 1.6x10^7)
what volume of a 0.37 M Mg(NO3)2 solution contains 87g of Mg(NO3)2.
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