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Predict which substance in each of the following pairs has a greater molar entropy. 1. P4 (g) vs. P2 (g) 2. HNO3 (aq) vs. HNO3 (l) 3. CuSO4 (s) vs. CuSO4 * 5H2O (s)
when hydrochloric acid reacts with magnesium metal hydrogen gas and aqueous magnesium chloride are produced. what
A 2.50 liter container is filled with 175g of Argon. If the pressure is 10.0 atm, what is the temperature.part B: If the temperature is 225 K, what is the pressure
what volume of air is needed to burn it completely? Assume that the temperature of the burner is 195.0 Celcius, the pressure is 1.1 atmosphere, and the mole fraction of O2 in air is 0.21.
When square brackets are placed around the formula for a substance, such as [NaOH], it indicates that we are working with the percent-by-mass
Our book shows a radioactive decay series in which a sample that starts out as U-238 eventually winds up becoming non-radioactive Pb-206. The half life for this process is extremely long, being 4.51 x 10^9 years. Consider a radioactive mineral sam..
A 10.4-g sample of CaCl2 is dissolved in 107 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
After a quantity of NO2(g) is injected into the mixture, the total pressure jumps to 812 torr. Calculate the new partial pressures after equilibrium is re- established.
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2
Assuming the heat absorbed by the styrofoam is neglibible, calculate the expected final temperature. The specific heat of water is 4.184 J g-1 C-1.
The process of boiling a reaction mixture and condensing the solvent vapors back into the reaction vessel is known as a)reflux b)filtration c)distillation d)extraction
the neutralization of HCL with NaOH at 25 degrees celsius is -79.9 kj/mol. Calculate the equilibrium constant for the reaction.
Calculate the values of E for the cell when the following volumes of the Cu titrant have been added: (Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios.
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