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Explain how many grams of water at 25 C must be poored on the above ice no water in flask initially, if we want that-
a) All the content freezes to -2 C;
b) The final temperature is 0C and half of the added water freezes;
c) The final temperature is 0C and half of the ice melts;
d) The final temperature is +2C.
Explain what is the entropy change in these processes?
If 2.50 g CuSO4 are dissolved in 8.0 x 10^2 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)4^2+, and NH3 at equilibrium
Calculate the equilibrium constants of the dissociation and the standard enthalpy of dissociation at the mean temperature.
Express the concentration of a 0.0260 M aqueous solutioin of fluorire, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
Compare and contrast solid-phase DNA synthesis with enzyme-catalyzed DNA synthesis. Please separately describe the similarities and differences between the two.
Drag the flask and drop it on the lower half of the burette to connect them. Open the Data window and click on the flask. Click the Pushpin icon in the blue bar of the Data window to lock its display to the flask's contents.
a weak acid ha is found to ionize 17.8 when mixed at a concentration of 0.3 moll. what is the value of ka for this
calculate the wavelength of the photon emitted when an electron drops from 4d obital to a 2p orbital in a hydrogen atom
Express the pressure values numerically in atmospheres, separated by commas. Enter the partial pressure of methane first, then ethane, then propane.
What is the reaction type as well as the number of ATP, NADH, FADH2, and CO2 generated in each reaction of glycolysis per glucose molecule
Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.00 cm^2
how many calories are required to raise the temperature of a 150.g sample of gold from 25 Degrees C to 175 Degrees C
What volume of 0.550 M Na3PO4 is required to precipitate all the lead(II) ions from 160.0 mL of 0.700 M Pb(NO3)2?
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