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Draw the structure of predominant form of Nexium at pH 1.5,7.0,12.0 with three resonance structures at pH 12.
A compound of iodine and cesium contains 69.75 g of metal and 66.20 g of nonmetal. How many grams of cesium are in 38.52 g of compound? How many grams of iodine
H2S and H2O have similar structures and their cenertal atoms belong to the same group. Yet H2S is a gas at room temperature and H2O is a liquid. Use bonding principles to explain why this is.
It was determined in an experiment that a balloon filled with O2 gas with mass 32.0g in a 1.0 dm^3 volume exerts 21.6 atm of pressure at 0 degrees Celsius. Does Oxygen act like a perfect gas
Vitamin solubility is 1 gmol in 100 gmol of waterYou are loading a drug (D) onto a porous spherical carrier pellet from an ethanol solution. The process is controlled by film diffusion f nom the bulk ethanol solution to the pellet.
A unknown liquid is insoluble in water and soluble in cyclohexane and alcohol with a boiling point of 110 C What is the substance?
The specific heat capacity of solid copper metal is 0.385 J/g-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0C to 77.5C?
The enthalpy change for converting 1.00 mol of ice at -50.0 degrees C to water at 70.0 degrees C is ____ Kj. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-k and 1.84 J/g-k, respectively.
Which of the following correctly correctly represents hydrogen bonding between methanol and water and why
How would the following changes affect the rate of the reaction with 1-bromobutane with NaI: doubling the concentration of 1-bromobutane. Doubling the concentration of NaI
write the full chemical equation upon the addition of NaOH to each of the 3 alanine species mentioned. If there's no reaction, indicate there's no reaction and why.
What is gel electrophoresis and what is the purpose of using an electrical current in this procedure?
Why should reflux of the microscale reaction mixture be gentle, with the condensation ring remaining close to the surface of the liquid in the test tube.
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