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Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
Calculate the number of bromine molecules present in the flask if A flask contains 0.350mol of bromine, Br2 in liquid form .
Conclude the range of pressures that this system can exists as 2 phases By imagine Raoult's law is applied to the system
the solubility of O2(g) in water is 4.43 mg O2/100 g H20 at 20 degree Celsius when the gas pressure is maintained at 1 atm. What is the molarity of the saturated solution?
A 28.5 g sample of an unknown metal is heated to 95.0C and then dropped into 58.0 g of water in a coffee-cup calorimeter. The temperature of the water rises from 23.5 C to 27.1C.
solution has an osmotic pressure of 3.80torr at 35?C. What is the molar mass of the protein?
Calculate the number of moles and the mass of sodium carbonate present in the mixture. (Formula weight of sodium carbonate is 106g/mol)
4 PH3(g) -> P4(g) + 6 H2(g) If, in a certain experiment, over a specific time period, 0.0039 mol PH3 is consumed in a 1.8 L container during each second of reaction.
A certain automobile of mass 1635 kg travels on a German autobahn at 157 km·h-1. What is the wavelength of the automobile?
Write the balanced formula unit equation for the reaction of sodium with oxygen (use major product). What is the sum of the coefficients
in a sodium borohydride reduction experiment explain any color changes observed when sodium borohydride was added.
A gaseous mixture of Oxygen(O2 )and Nitrogen(N2 )contains 40.8 grams N2(nitrogen) by mass then determine what is the partial pressure of O2(oxygen) in the mixture if the total pressure is given= 345 mmHg.
Use the solution pH to calculate the concentration of hydronium ion present
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