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Predict whether each of the following solvents is miscible or immiscible with hexane,C6H14. 1.) formic acid, HCOOH immiscible or miscible 3.) methyl ethyl ketone, C4H8O immiscible or miscible 2.) methanol CH3OH immiscible or miscible 4.) chloroform, CHCl3 immiscible or miscible
what is the mole fraction of ethanol in an aqueous solution that is 46 percent ethanol by mass?
A gas mixture, with a total pressure of 300. torr, consists of equal masses of Ne (atomic weight 20.) and Ar (atomic weight 40.). What is the partial pressure of Ar, in torr
Choose the answer which presents the chemical formulas for two substances in order of decreasing melting point (highest melting point first) and gives a valid reason for this order.
When the following reaction is balanced in acid solution using the lowest possible whole number coefficients, the coefficient of H+ will be: S8 + NO3- --> S4O62-+ NO2
A glucose molecule is labeled at carbon-3 with 13C. How many turns of the citric acid cycle are required to remove the carbon as CO2?
what is the pressure when the volume of the gas is reduced to one-fifth of the original value at the same temperature?
How many protons, and how many neutrons are present in the nucleus of each isotope? What is the natural abundance of each isotope, if the average atomic mass of gallium is 69.72 u?
The main reason that alkyl halies are good electrophiles is that: A) the carbon atom linked to the halogen is negatively polarized. B) the carbon atom linked to the halogen is positively polarized
In order to separate 261 mg of the sample with similar separation of the components, what size column, diameter and length, should be used? And what volume flow rate should be used?
A solution of only A is made that is initially 0.800 M. After the solution is allowed to reach equilibrium, it is determined that the concentration of B is 1.20 x 10^-4 M. Use this information to determine the equilibrium constant for the reaction..
What is a specific example that exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
Milk of magnesia is often taken to reduce the discomfort associated with acid stomach or heartburn. The recommended dose is 1 teaspoon, which contains 4.00×102mg of Mg(OH)2.
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