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Explain which chemical in the Dilantin procedure makes it necessary to grease the joint between the condenser and the reaction flask and Why? What could happen? The chemicals being utilized are benzil, urea, ethanol and 30% NaOH
What observed rotation is expected when a 1.06 M solution of (R)-2-butanol is mixed with an equal volume of a 0.530 M solution of racemic 2-butanol,
A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is the mole fraction of hexane?
Calculate the mass of nitrogen dissolved at room temperature in an 83.0 {rm L} home aquarium. Assume a total pressure of 1.0 {rm atm} and a mole fraction for nitrogen of 0.78.
Which of the following is true about an endothermic reaction?
What limits must be placed on the value of x so that all concentrations are positive. By putting the equilibrium concentrations (in terms of x) into the equilibrium-constant expression, derive an equation that can be solved for x.
the densities of three solutions with known concentrations 20 50 and 70 and one unknown solution were determined. if
write the equation for self-ionization of water and why ammonia is a weak base.
a compound was analyzed and was found to contain the following percentages of the elements by mass barium 89.56 oxygen
aluminum oxide decomposes to produce aluminum metal and oxygen gas. when 9.8g of aluminum oxide decomposes how many
The molar mass of an oxygenated hydrocarbon substance is 88.0 g / mole.Its composition is as follows:O:36.4%,H :9.0%,C:54.6%.Calculate the empirical formula and molecular formula.(use atomic mass C=12.0,H=1.0,O=16.0)
explain the detoxification of acetaminophen alcohol and sodium nitrite with biotransformation of xenobiotics. describe
a sample of 1.42 g of helium and an unweighed quantity of oxygen are mixed in a flask at room temperature. the partial
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