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The molar enthalpy of vaporization of water is 44.012 kJ mol-1. Under an applied pressure of 1 atm, water boils at 373.15 K. The safety value of a kitchen pressure cooker is set to release when the pressure reaches 2 atm. When food containing water is cooked inside this pressure cooker, what is the cooking temperature? please show work. rate lifesaver
A 283-g sample of nickel at 100.0°C is placed in 100.0 mL of water (density = 1.00 g/mL) at 22.0°C. What is the final temperature of the water?
A line in the Balmer series of hydrogen has a wavelength of 434 nm. From what state did the electron originate? Ni=? In what region of the electromagnetic spectrum is this line observed?
conversion of 20 ATP molecules to cAMP per second. (Assume that each G protein activates a single unique adenylyl cyclase.) Calculate the number of moles of cAMP that are produced per second. Enter your answer to at least two significant figures.
How many grams of ethylene glycol (automobile antifreeze, {rm C_2H_6O_2}) dissolved in 3.30 {rm kg} of water is needed to lower the freezing point of water in an automobile radiator to 24.5^circ {rm C}?
What is the energy of a C-C bond in kJ/mole? Explain. How does this amount of energy compare?
undergoes a uniform negative acceleration for 1.5 s, andthen comes to rest. Whatdoes the spring scale register (a)before the elevator starts to move?
how many moles of H2SO$ must eb used to produce 6.5 mol of water..?? Someone posted this question before and somehow NaOH
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
A 93-L sample of dry air cools from 145 degrees celicus to -22 degrees celicus while the pressure is maintained at 2.85 atm. What is the final volume?
The following table lists molar concentrations of several ions in seawater. Using a density of 1.022 g/mL for seawater
if 6.73 g of Na2CO3 is dissolved in enough water to make 250 ml of solution, what is the molarity of the sodiam carbonate?
According to the second law of thermodynamics, the change in the entropy of the universe (DeltaSuniv) during a spontaneous reaction
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