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The atmospheric pressure on Mars is about 2.00 torr, depending on the location. express this pressure in atm psi and kPa
A buffer system is created by first neutralizing the supernatant solution containing Pb2+, Fe3+, Ca2+, Cu2+, ad K+ ions with 6M NH3 solution, and then adding an equal additional volume of 6M NH3 solution.
Atomic orbitals of carbon relative to methane in a cubic frame of reference.
Is 373 K a high temperature? Some thermodynamic principles only hold at "high temperature". How is "high temperature" defined
palladium crystallizes with a face-centered cubic structure. it has a density of 12.0 gcm3 a radius of 138 pm and a
Cd2+, Co2+ is saturated with H2S at a pH of 3.00. Which metals form a sulfide solid? [H2S]sat=0.10 and Ka1= 1.3e-7 and Ka2=8.5e-14
Reaction A B proceeds with H = - 25 kJ×mol-1; S = - 100 J×K-1×mol-1. Substance A was taken at the initial concentration 2 mM. Determine the concentrations of A and B after the reaction reaches equilibrium. Assume T = 298 K.
Determine the stiochiometric coefficients for the reaction, (3CaO Al2O3 3SiO2) + a(CaO Al2O3 SiO2)= b(CaO Al2O3 2SiO2) + c(2CaO Al2O3 SiO2)
a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.
Calculate the mass of water produced from 9.47g of methane, CH4, reacts with an excess of oxygen in the following unbalanced reaction. 2C8H18(g)+25O2(g)=16CO2(g)+18H2O(g)
A tank is being filled through a valve by an ideal gas where the following applies: H=30*T(K) in J/mol for gas, R=8.314 in J/mol/K, H=40 T(K) for the liquid in J/mol (gas as liquid, different reference point than gas)
If 72.4 kJ of heat is supplied to a 842 g block of metal, the temperature of the metal increases by 9.0°C. Calculate the specific heat capacity of the metal in J/g·°C.
Write a net ionic equation for the precipitation reaction resulting from mixing a BaCl2 solution with a K2SO4 solution.
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