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Formula Molar Mass (g/mol) ?G°f (kJ/mol) ?H°f (kJ/mol) S° (J/(K mol)) H2O(g) 18.015 -241.8 188.7 H2O(l) 18.015 -285.83 69.91 T = 298 K R = 8.314 J/(K mol) Calculate the equilibrium constant for the equation as written at 240 K (Dependence of temperature on enthalpy can be disregard). Express your answer to three significant figures. H2O(g) ? H2O(l)
Aldehydes react with KCN and HCN to form cyanohydrins. The nitrile may be further converted to a carboxylic acid or -CH2NH2. Carry out the synthesis of a cynohydrin from cyclopentanecarboxaldehyde and convert it to a carboxylic acid and a -CH2NH2.
Write a mechanism for the conversion of 1-butanol to 1-butyl bisulfate, indicating the flow of electrons.
In a graph(Energy (kj/mol)) the first five ionization energies of an atom are IE1, IE2, IE3, IE4, and IE5. what is the element symbol and its complete electron configuration for
The natural abundance of 107 Ag is 51.84%. How many 107 Ag atoms are present in a piece of silver weighing 150 mg?
69.0 mL of a 1.30 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 151 mL of water. What is the final concentration
1.0 liter of a buffer solution that is 0.10 M in CH3COOH and 0.10 M in NaCH3COO, how will the pH of the solution change?
Calculate the mole fraction of benzene in a solution of benzene and toluene that has a total vapor pressure of 266mmHg at 60 degrees C. Note that both components contribute to the vapor pressure over the solution.
How many moles of carbon, hydrogen, & oxygen are present in a 100g sample of ascorbic acid? Ascorbic acid (vitamin C) contains 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen by mass. Assume a 100 g sample of ascorbic acid.
how many grams of malonic acid would be needed to make 50.0 milliliters 0.0500 l of 0.200 m malonic acid?the formula
Which of the following expressions is not equivalent to pH? a. log 1/[H+(aq)] b. 14.0-pOH c. -log [H+(aq)] d. -log Kw/[OH-] e
A cylinder is labeled "PENTANE." When the gas inside the cylinder is monochlorinated, five isomers of formula C5H11Cl result. Was the gas pure n-pentane, pure isopentane, pure neopentane
To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 4.8- bulb, then filled it with the gas at 1.40atm and 20.0 degC and weighed it again.
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