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Determine the crossed aldol condensation? Describe all possible products from a reaction between 2-methylcyclohexanone and 2-butanone in the presence of sodium hydroxide?
Discuss why is a plastic beaker instead of a glass beaker used in the experiment of "synthesis and characterization of Tetraphenylcyclopentanedione"?
Describe how much energy is needed to heat 1.3 g of Au from 25degrees Celsius to 46 degrees Celsius when the specific heat of Au is 0.131 J/g degrees Celsius.
The calorimeter contains exactly 261 g of water, and the temperature increases by 1.126°C. A 0.1287 g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat ca
Suppose that the earth receives 1.15e14kJ/s of solar energy. Determine the mass of solar material is converted to the energy over a 27-h period to provide the daily amount of solar energy t
The standard reduction potential for the Cu2+/Cured ox couple is +0.34V; that for H2O/H2, OH-at a pH o 7 is -0.47V. For the electrolysis of a neutral 1.0 MCuSO4 solution, write down the equation
Determine the numbers of electrons and moles of electrons have passed through the cell? Determine the numbers of moles of oxygen gas could be produced for the oxidation reaction of water at the anode?
When a solution of nickel (II) sulfate adjusted to a pH of 7 is electrolyzed the green color of the solution becomes less intense in the cathodic chamber and gas bubbles are detected in the anodic c
Determine Ka for the acid HA when an unidentified acid, HA, is found to ionize 3.72% when 0.200mol is dissolved in the enough water to make a 0.1000L solution, and the solution components are given
Determine the numbers of grams of KOH must be added to 0.500 L of buffer to change the pH by the 0.15 units?
Determine the molecular formula for3,3-dichloro-2-methylpentane and also calculate the molecular formula for 2-bromo-3-chlorocyclohexene?
From the list below, choose the smallest number of moles of NH4Cl that when added to this solution will cause PbCl2 to precipitate.
If a car using octane is driven 10,000 miles in one year and gets 25 miles per gallon of octane, determine the total energy consumption? The heat of combustion of octane (C8H18) 47.8 kJ/g and
Discuss why the melting point of CaF2 (1418deg C) is almost double that of RbF (795), but the melting point of CaCl2 (782)is only slightly larger than that of the RbCl (718)?
What mass of nitrogen gas was oxidized when the oxidation of N2 to NO was completed in a bomb calorimeter, the heat absorbed was measured as 492 J.
Determine a compound with the empirical formula C5H8O that gives a positive Tollens' test and does not react with bromine in dichloromethane.
A common ingredient in paint, composed of oxygen and titanium, crystallizes in a body-centered cubic arrangement of titanium cation with the two oxygen anions occupying positions within th
What volume wills the gases expand against a constant pressure of 680. torr if the combustion of this mixture releases 1247. J of energy and if all the energy of combustion is converted into the wor
At 0.0°C and 1.00 atm pressure a balloon filled with the 34.6 mol helium has a volume of 775L. The temperature of the balloon is increased to the 28.0°C as it expands to a volume of 854. L,t
Find the pH at the following volumes of base added Vb= 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL when a weak acid HA (pKa = 5.00) was titrated with the 1.00 MKOH and the acid solution had a volume of 10
Describe the calorimetry and explain two commonly used calorimeters. In a calorimetric Measurement, explain why is it important that we know the heat capacity of the calorimeter? Discuss how is the
Suppose you are stranded in the middle of a frozen pound, 783 m in diameter which is so slippery that your feet slide freely and don't move you.
The blood alcohol levels can be measured by the REDOX titration with the potassium dichromate according to the following unbalanced reaction (in the acidic solution):
Suppose the specific heat of the solution to be4.184 joules/grams degree Celsius. Determine the heat in joules given off when the temperature of 25.6 of solution changes from 23.56 degrees Celsius
Determine the functions of glycolipids, phospholipids, and the sphingolipids? Explain what distinguishing characteristics are used to place lipids into one of these categories?