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The specific rotation of a compound is defined as the observed rotation of the compound when its concentration is 1 g/mL in a sample tube which is 10 cm long. If a certain compound is observed to ha
Given the three isomeric alcohols, 2,2-dimethyl-1-butanol, 2-methyl-2-pentanol, and 2-methyl-3-pentanol, which are chiral
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy released by the formation of water from H2 and O2 into electrical energy. Determine the quantity of electrical en
Which of the following is true when comparing the hydrolysis of esters in acidic solution with the hydrolysis of esters in basic solution. both the inorganic and organic products are the same in bot
The names of esters consist of a first name and a last name. Which of the following correctly describes this naming system. the first name is the name of the alcohol, and the last name is the name of
In a formal sense, the conversion of a carboxylic acid to an amide corresponds to which of the following. the combining of the fragments which remain after the loss of -OH from the carboxylic acid and
When compared with the boiling points of other compounds of comparable molecular weight, which of the following is true of the boiling points of carboxylic acids
The amino acids found in proteins are all alpha-amino acids, but not all amino acids are alpha-amino acids. Suppose that a particular amino acid has alpha -, beta-, and gamma isomers. Which of the f
Calculate the entropy change for the vaporization of liquid methane and liquid hexane using the following data, Methane CH4 -- Boiling point= 112K Delta H(vap) = 8.20kJ/mol
How many carbon atoms are present in the smallest ketone which cannot exhibit enol-keto tautomerism
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. A sample of sodium-24 with an inital mass of 34.1 g is left to decay for 60.0 hours. Ca
Iodine-131 is a radioactive isotope. After 4.00 days, 70.8% of a sample of 131I remains. What is the half-life of 131I
How many milliliters of 20.0 M calcium chloride would you use to prepare exactly 800 ml of a solution that contains 5.00 moles/liter of chloride ions.
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 1-bromopropane. Draw the chemical structure of the alkene that you could make using these reagents in a synthesis that
Choose an appropriate buffer system to make a buffer of ph=5.00. Calculate the appropriate composition in terms of the weak acid and conjugate base
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation? H2 + Cl2 ---> 2HCl
In the titration of a monoprotic acid with a solution of sodium hydroxide of known concentration, what quantities are equal at the equivalence point
a monoprotic acid with a solution of sodium hydroxide of known concentration, what quantities are equal at the equivalence point
A typical polyethylene bag from a grocery store weighs 12.4 g. How many molecules of ethylene, C2H4, must be polymerized to make such a bag
A buffer is made by dissolving 0.037 mol of potassium fluoride in 135 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate ph of the buffer.
How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
what concentration of Ba(OH)2 solution is left after complete precipitation of BaS. What is the mass of BaS Precipitated
What mass of calcium chloride is dissolved in 100. mL of a 1.20 M solution of calcium chloride
What is the molarity of the resulting solution when 20.0 mL of a 2.00 M aqueous solution is diluted by the addition of 30.0 mL of water
balance the equation when 1-butanol is added to acetic acid.....then 1 drop of conc. sulfuric acid is added, and then 2 mL of water.