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What is the total pressure (in atm) in a 15.0 L flask 20.0 degrees celcius, which contains 0.127 moles of H2 and 0.288 moles of N2?
what is the spectator ion for the chemical formula cl2 nabrbr2
what is the specific heat for the metal if it takes 48.0j to raise the temperature of an 8.60g piece of unknown metal
The standard free energy change is -33.41 kJ/mol for the formation (delta G formation) of AgNO3(s) from elements at 25 degrees celsius. What is the equilibrium constant for the reaction? (R = 8.314 J/K mol)
If a mixture of gases contained 78% nitrogen at a preasure of and 22% carbon dioxide at , what is the total preasure of the system
The element gallium (Ga) has the second largest liquid range of any element, melting at 29.78 oC and boiling at 2204 oC at atmospheric pressure.
What substances are present after the reaction is over? (Hint: Write a balanced chemical equation for the reaction first.) How many grams of water are formed?
What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75?
Determine the second order rate constant from the initial concentration and half life and what is the second order rate constant?
During the course of an experiment, 10.0 mL of water is added to 25.0 mL of aqueous 0.120 M NaCl. What is the concentration of NaCl in the resulting solution
traces of iron and titanium. If the sapphire were found to contain 0.155 g of oxygen, what is the mass of the gemstone?
At the begining of the titration being performed in this lab experiement, how do you determine how much naoh should be added at each interval between volume-pH readings? As you approach the equivalence point,
Liquid Chlorobenzene flows through a pipe at a rate of 3M^3/min. What is the mass flow rate of the stream in kg/h. What is the molar flow rate in mol/s
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