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Choose all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller travelling from Grand Isle
Electron configurations are a shorthand form of an orbital diagram, describing which orbitals are occupied for a given element. Generate the electron configuration of arsenic (As)
What is the gauge pressure at a depth of 4.50 mi below the surface of the sea if thewater temperature averages 60°F? Give your answer in lb (force) per sq. in. The sp grof sea water at 60°F/
An unknown compound contains only carbon, hydrogen, and oxygen (C x H y O z). Combustion of 5.50g of this compound produced 8.07g of carbon dioxide and 3.30g of water.
When a 8.26-g sample of gaseous hydrogen bromide dissolves in 36.2 g of water in a coffee-cup calorimeter the temperature rises from 25.00C to 82.14C. Calculate H in kJ/mol HBr for the solution pro
In a laboratory experiment, students synthesized a new compound and found that when 3.449 grams of the compound were dissolved in 179.2 grams of chloroform, the vapor pressure of the solution was 17
Calculate the vapor pressure of the solution at 25oC when 12.43 grams of testosterone, C19H28O2 (288.4 g/mol), are dissolved in 246.7 grams of diethyl ether.
In a chemical reaction 3 moles of one gas and 2 moles of a second gas react to form 5 moles of a third gas. In which of the processes described below should the entropy increase.
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies with 4sigfig
Consider the figure that shows the distillation apparatus. Describe the practical reasons behind the direction of the flow of water through the condense. It will not let me upload the picture of the
The solubility-product constant for Ce(IO3)3 is 3.2e-10. What is the concentration in a solution prepared by mixing 50 mL of O.0250 M Ce with 50 mL of 0.040 M IO3? Back of book has 7.0e-3 M
The mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10hours of operation, but then it begins to increase. What is the most lik
A mixture of carbon and sulfur has a mass of 9.0g . Complete combustion with excess O2 gives 23.0g of a mixture of CO2and SO2. Find the mass of sulfur in the original mixture.
An aqueous solution freezes at -3.04 degrees celsius. What is the molality of the solution. Assume that there is no dissociation of the solute and that k_f is 1.5 K * kg/mol.
How many grams of antifreeze (C_2 H_4(OH)_2) would be required per 500 g of water to prevent the water from freezing at a temperature of -27 degrees celsius? answer in units of g.
A microwave oven operates at 2.70 . What is the wavelength of the radiation produced by this appliance
Estimate the boiling point elevation of a saturated solution of LiF at 100 degrees Celsius, assuming it undergoes complete dissociation. The solubility of LiF is 230 mg/100 g of water at 100 degrees
A Freon leak in the air-conditioning system of a large building releases 20kg of CHF2CL per month. If the leak were allowed to continue, how many kilograms of Cl would be emitted into the atmosphere e
Can some explain clearly how to determine the valence electrons of transitional metals and also their ions. for ex Mo, Mo2+, Ag, Pb. Pb2+. Confuse about what makes up their outer shell.
A 10.0 mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the addition of 20.0 mL of the HCl solution.
FE3+ SCN <-> FeSCN2, how will adding potassium thiocyanate (KSCN) initially change [Fe^3+], [SCN], and [FeSCN^2+). how should equilibrium system respond to the change
Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information
Draw a chair conformer for propylcyclohexane, where the propyl group is in the equatorial position. On the same carbon (C1), show the attached H in the axial position.
Calculate the mass fraction of sulfuric acid in the product solution. b.) Taking 100 kg of the 20% feed solution as a basis, draw and label a flowchart of this process, labeling both masses and volu
Use the rydberg equation to calculate the wavelength in nm of the photon when an electron in a hydrogen atom undergoes a transition from n=6 to n=2