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What is the volume occupied by 12.5 g of argon gas at a pressure of 1.05 atm and a temperature of 322 K? Would the volume be different is the sample were 12.5 g of Helium?
Calculate pFe2 at each of the following points in the titration of 25.00 mL of 0.02075 M Fe2 by 0.03616 M EDTA at a 6.00 pH:11.50 mL, The equivalence point
Solid silicon and solid magnesium chloride form when silicon trichloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation.
Find the amount of heat involved when 300.4 g of propane is burned with an excess of oxygen. C3H8(g) + 3 O2(g) ? 3 CO2(g) + 4 H2O(l) -->?H = -2219 kJ
Initially a mixture contains 0.760 mol each of N2 and O2 in an 8.26-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C.
Problem- Draw the major organic product formed when the compound shown below undergoes a reaction with CH3CH2MgBr and then is treated with water.
when aqueous solutions of lead ii ion are treated with potassium chromate solution a bright yellow precipitate of lead
The decay rate for carbon 14 in the sample is 14.2 dis/min per graham carbon. In what year was the coffin most likely made? ( Assume the half life of carbon-14 is 5730 years and that the decay rate for carbon 14 in living organisms is 15 dis/min p..
a sample of oxygen gas has a volume of 2.73 dm3 at 21.0 c . at what temperature would the gas have a volume of 4.00
A neon sign is made of glass tubing whose inside diameter is 4.0 cm and whose length is 5.3 m. If the sign contains neon at a pressure of 2.03 torr at 38°C, how many grams of neon are in the sign
A mixture of 0.152 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessal at 500K, producing a mixture of Co and CO2. The total pressure is 0.6879 atm. What is the partial pressure of CO?
two naturally occurring isotopes, Re-185 (mass = 184.935 amu) and Re-187 (mass = 186.956 amu). Calculate the percent abundances of the isotopes of rhenium.
If the width of a spectral line of a certain electronic transition is 1.00 cm-1, what is the minimum uncertainty in the lifetime of the transition?
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