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Calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous under standard conditions.
A) H2(g)+Cl2(g)-> 2HCl(g)
B) MgCl2(s)+H2O(l)-> MgO(s)+ 2HCl(g)
C) 2NH3(g) -> N2H4(g)+H2(g)
D) 2NOCl(g)-> NO2(g)+Cl2(g)
A cylindrical glass tube 15.0 cm in liength is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 9.64g.
The work function for Cu metal is 4.80 eV. If a piece of Cu is bombarded by violet light (λ = 4,000 Å), will electrons be ejected? "YES" or "NO" with supporting argument/calculation.
Draw the structure of the major organic product formed in the reaction of 1-methylcyclohexene with ozone followed by dimethyl sulfide
What is the pH of an 85 mL solution containing .215 M NaHCO3 and .203 M Na2CO3?
Compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100°C in a thin flask in an ambient laboratory temperature of twenty five degree celsius.
What is the percent by mass of NaHCO3 in a solution containing 20 g NaHCO3 dissolved in 700 mL H2O?
A compound with a molecular formula C9H12, showed the following signals in its 1H NMR spectrum: ? (CDCl3, ppm): 7.5-7.0 (m, 5H), 2.3 (septet, 1H), 1.3 (d, 6H).
Name each of the following species for the following acid-base reactions. (The equilibrium lies to the right in each case, i.e., the product side is favored. If the species is an ion, include the word "ion" in the name.
Why is glycogen debranching enzyme necessary? a) It allows regulation of the rate of glycogenolysis. b) Because glycogen phosphorylase cannot convert G1P to G6P
if there are 45 drops of alcohol/mL, and the density of alcohol is 0.789g/mL. what is the blood alcohol concentration?
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.052 moles of sulfuric acid is mixed with water to make 179 mililiter of solution, what is the molarity of H+?
some gas is expelled from the bottle from the process. When P = P(external), the stopper is quickly replaced. The gas remaining in the bottle slowly warms up to 285K. what is the final pressure in the bottle for a monatomic gas for which C(v,m) = ..
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