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Under certain circumstances, carbon dioxide,CO2(g), can be made to react with hydrogen gas, H2 (g), to produce methane, CH4 (g), and water vapor,H2O(g):
CO2(g)+4H2(g)→CH4(g)+2H2O(g)
How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 76.6 moles of water vapor?
Determine the solubility of N2 in water exposed to air at 25 C if the atmospheric pressure is 1.2 atm. Assume that the mole fraction of nitrogen is 0.78 in air and the Henry's law constant for nitrogen in water at this temperature is 6.1 10-4 M/at..
write the balanced chemical equation for each of the following equilibrium constant expressions: a)Kc=[CO2][H2]/[CO][H2O. b)Kc=[H2][F2]/[HF]^2. c)Kc=[O2][HCl]^4/[Cl2]^2[H2O]^2. d)Kc=[CS2][H2]^4/[Ch4][H2S]^2.
Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution containing sodium iodide: 2NaI(aq) +Cl2(g) arrow I2(s) +2NaCl(aq) How grams of iodide, NaI, must be used to produce 55.6 g of iodine, I2
q1.if 21.64ml of 9.44times10-4m kmno4 solution is required for the titration calculate how many mgs of ca2 are present
If the radius of a silicon atom is 1.18 x 10-8cm, what is the radius in nm?
Calculate the heat capacity per gram of metal. Assume no heat is lost to the calorimeter or the surroundings. The specific heat capacity for water is 4.184 J/g
Differentiate between the terms strength and concentration as they apply to acids and bases. When is HCL strong? Weak? Concentrated? Dilute? Answer the same questions for ammonia.
Calculate the entropy change. What would be the value of S if the heating were carried out irreversibly?
A gas expands and does P-V work on the surroundings equal to 345 J. At the same time, it absorbs 191 J of heat from the surroundings. Calculate the change in energy of the gas.
Acetic acid tends to form Dimers(CH3CO2)2 because of hydrogen bonding. The equilibrium constant (kc) for this reaction is 1.51x10^2 in benzene
This is vital to Jack Daniels- The vapor pressure of ethanol is 115 mmHg at 34.9 degrees C. By means of the fact that: DELTA Hvap of ethanol is 40.5 kJ/mol compute the temperature in Celsius when the vapor pressure of ethanol is 700 mmHg.
To identify a diatomic gas (\rm X_2), a researcher carried out the following experiment: She weighed an empty 1.00-\rm L bulb, then filled it with the gas at 1.10 \rm atm and 23.0 ^\circ\rm C and weighed it again.
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