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Explain an isolated chamber with rigid walls is divided into two equal compartments, one containing steam at 10bar and 3700C as well as the other evacuated. A valve between the compartments is opened to allow steam to pass from one chamber to the other.
Subsequent to the pressures but not the temperature in the two chambers have equalized, the valve is closed, isolating the two systems. Explain what the temperature is and pressure in each cylinder? Steam isn't an ideal gas under the conditions here
My lab is of an iodine clock reaction. I am being asked to calculate the initial rates for experiments 1, 2, and 3 from delta [S2082-]/ delta time. I know how to use the initial rate method however I am confused on how to obtain the initial concen..
in a 100 ml sample of a buffer solution the propanic acidconcentration is 0.50 molar and the sodium propanoate
calculate the number of moles of sodium carbonate present in a mixture of sodium bicarbonate sodium carbonate and a
A student in lab has 3.00 g of pure N2 in 0.541 g pure H2. The reaction happens following this equation: N2(g) + 3H2(g) → 2NH3(g) How many grams of NH3 would be produced?
Caffeine is a stimulant found in coffee and tea . A solution of caffeine in chloroform as a solvent has a concentration of 7.9 x 10^-2m. What's the percent of caffeine by mass? Calculate the mole fraction of caffeine.
Assume your eyes receive a signal consisting of blue light, the wavelength= 470nm. The energy of the signal is 2.50x10^-14 J. How many photons reach your eyes
a sample of 1.518g of KHC8H4O4 was dissolved in water and titrated with an NaOH solution. 26.90 ml were required to reach the equivalence point. Calculate the molarity of the NaOH solution
The approximate bond angles between the atoms in a molecule with a trigonal planar electron pair geometry are
Calculate delta S for the heating of 1 mole of SO2(g) from 75°C to 1350°C at a constant pressure of 1 bar.
Explain how a calibration curve could be used to determine an unknown quantity
Ka for this species is 10-4 and Kb is 10-8. Nonetheless, the Ka and Kb reactions proceed to nearly the same extent when NaHA is dissolved in water.
How long would you need to sample from a concentration of 1000 PPM using a flow rate of 50 ml/minute to collect 100 mg of material?
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