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How much work is done when an external pressure of 4.7 atm compresses a chamber from 17.3 liters to 1.1 liters? Please answer in units of kJ.
Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14.0 L of H2 at 351 K and 1.11 atm ?
We did a lab in Chem where we put a liquid into a flask, secured foil on the top and poked a hole in the foil so the vapor could push out the air
A sample of air was compressed to a volume of 27.0 L. The temperature was 297.0 K, and the pressure was 8.70 atm. How many moles of gas were in the sample. Enter units.
A cylindrical container has a radius of 2.1cm and a height of 0.62m. What is the volume of the container in dm3
it is found that 1.431 g of element x contains 7.509 times 1021 atoms. the atomic mass of x is? how many protons does
A mass of 137 g of manganese dibromide is dissolved in 330 g of water. What is the molality of the solution
How EXACTLY is chromatography used in testing blood for drugs/alcohol? I need the exact process of how they do it, and why.
Calculate the pKa value of the acid and determine the number of moles of acid initially present. b) When the reaction is complete, what is the concentration ratio of conjugate base to acid
If a laser operated on the n=5 to n=2 transition of a H atom, what wavelength in nm photon would be emitted? (E2= -82 kJ/mol, E1= -328 kJ/mol)
If the concentration of X is increased to 2.0 M and the concentration of Z to 3.0 M, how long should this reaction take?
The weight of an object is the product of its mass,m , and the acceleration of gravity,g (where g= 9.8m/s^2 ). If an object's mass is 10kg, what is its weight
Substance A has a greater molar mass then substance B. Both are nonelectrolytes. If 50 g of substance A are dissolved in 250 g of water in one beaker
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