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How many orbitals are there in a atom with the following combinations of quantum numbers? A). n=3 l=1 B). n=4 l=2 ml=2
A 64 L sample of dry air is cooled from 137°C to -20.°C while the pressure is maintained at 2.85 atm. What is the final volume
a small amount do aqueous ammonia is added to a Cd^2+ solution and a precipitate forms. Write the equation for this reaction.
A stock solution is prepared by adding 21 mL of 1 M AlCl3 to enough water to make 76 mL. What is the Cl- concentration of 40 mL of the stock solution?
If your absent minded lab partner spilled deionized water into your NaOH solution, diluting it, would the Ka value you determine for the solid weak acid be greater than
Compute the expected change in temperature for 1.7 grams of ammonium nitrate NH 4 NO 3 dissolved in 50.0 mili litres of water H 2 O.
Concentration of a Species, One mole of NOCl gas is added to a 4.0L container. The NOCl undergoes slight decomposition to form NO gas and Cl2 gas.
the change in energy of each system and also of the composite system. the change in entropy of each system an also of the composite system.
No carbon atom in the structure of Y has more than one oxygen atom bonded to it, and Y can exist in two (and only two) stereoisomers forms. What are the structures of these forms of Y?
Assuming that the heat capacity of the ammonuim chloride solution is 4.18J/gc, calculate the heat (enthalpy) of the solution NH4Cl, (a) in J/g and (b) in kj/mol.
If 1.500 g of solute having molar mass of 125.0 g were dissolved in 35 g of camphor, what would be the resulting freezing point of the solution?
What is the equilibrium concentration of Cu+ (aq) in a solution that is 0.0200M solution in CuNO3 and 0.450M HCl (aq)
High-purity benzoic acid (C6H5COOH; ?Hcomb = -3227 kJ/mol) is a combustion standard for calibrating bomb calorimeters. A 1.169 g sample burns in a calorimeter (heat capacity of calorimeter alone = 1365 J/°C) that contains exactly 1.200 kg of water..
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