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Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 . How many moles of gold fit in a sheet with a length of 72.3 , a width of 26.9 , and a thickness of 12.2?
(A) What is the electron configuration of diatomic BN+? What is its bond order?
Calculate the final temperature of a mixture of 170.0 g of ice initially at -7.0 degrees C and 318.0 g of water initially at 94.0 degrees C.
What I don't understand is how they got it. I know that tetraphosphorus hexoxide is P4O6 and water is H2O. What I don't understand it how it becomes 4H3PO3.
After allowing the solution to sit for 30 minutes the student determines that the bromide concentration was [Br-]= 0.0012 M. What is the Pb2+ concentration?
Freon-12, CF2Cl2, is a refrigerant and aerosol propellant suspected of accelerating the loss of ozone in the upper atmosphere. It is prepared by reacting gaseous carbon tetrachloride
Choose a process in any industry that involves using a reactor , talk about that reactors and its role in the manufacturing of that "said industry", and explain why that reactor was choosen instead of any other reactor
Design a laboratory set-up that would enable you to separate a mixture of three hydrocarbons with different boiling points. Draw and label a diagram of your set-up
A nonvolatile nonelectrolyte compound having a molar mass equals to 18000 g/mol is dissolved to give 100 mL aqueous solution that has an osmotic pressure equals to 26 mmHg at 27oC. The mass (in g) of this compound dissolved in this solution is: A)..
The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 29.2 g of zinc from room temperature (20.0 °C) to 150 °C.
You have a sealed 8.10 L container with a mixture of nitrogen and helium gas at 25.85 oC. The gas mixture contains 0.204 atm of nitrogen and 1.54 g of helium. Calculate the mole fraction of helium in the container.
Enthalpy of combustion of ethanol(g) is -1371 kJ/mol. Temperature and pressure of intake mixture is 25 oC and 1 bar, respectively. Assume ideal behavior of diatomic gas and ignore the changes in the number of moles of gas during combustion.
Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction
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