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A certain applications requires a mterial that is lightweight, an electrical insulator, and has some flexibility.
a) Which class of materials would you search for this selection.
b) Explain your answer from a bonding point of a view.
Calculate the standard free energy change, and determine whether or not the following reaction is spontaneous under standard conditions:
Calculate the molar concentration of a solution if the absorbance (A) is 0.355, the molar absortivity (a) is 4.29 x10 to the neg 4 L/mol*cm and the path length (b) is 3.00 cm
Calculate the total pressure (in atm) of a mixture of 0.0270 mol of helium, He, and 0.0200 mol of oxygen, O2, in a 4-L flask at 20°C. Assume ideal gas behavior.
Write the balanced chemical reaction for the oxidation of sucrose C12H22O11 (s) to carbon dioxide gas and liquid water calculate ?H, ?U, and ?S for the reaction How much of this energy change can be extracted as
What is ?H for the process in this experiment. What is the molar enthalpy of solution for sodium hydroxide
Calculate the mass of silver chloride required to plate 135 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% Ag.
a solution is prepared by dissolving 2.33g of c60 in 100.0g of toluene. given that the vapor pressure of pure toluene
Hydrogen was cooled from 150 c to 50 c. It's new volume is 75 ml. What was the original volume?
You will start with 500 mg of one of isoamyl acloho to make isoamyl acetate. While the alcohols are liquids, we will measure them by mass directly on the balance, not by volume (i.e. the density of the alcohol will not be used; pretend the alcohol..
What are the signs of Hvap and Svap for water. Do you expect the signs of these quantities to be the same for other liquids. Explain.
What is the final temperature of 0.222 mole of an ideal gas that performs 125 kJ of work adiabatically if the initial temperature is 235°C
How many grams of Oxygen gas are required if It is desired to inflate a baggie with 842 milliliters volume by filling it with O2 gas at 1.21 atm pressure and a 306 K.temperature ?
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