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Given that an atom of a semiconductor has a diameter of 3.10 A, what is the maximum number of moles that fit in the channel of a processor chip that is 79.9 nm long, 76.1 nm wide and 315 nm thick?
CaCO 3 ( calcium carbonate ) is insoluble in water. would this ionic compound conduct electricity. why/why not.
1 calculate the final temperature of 63 ml of ethanol initially at 11 degc upon absorption of 527 j of heat. density of
A 29.0-g sample of water at 270. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
If the partial pressure of oxygen drops below 100.0 mmHg, passengers become drowsy. If this happens, oxygen masks are released. What is the total cabin pressure at which oxygen masks are dropped
For the following dehydrohalogenation (E2) reaction, draw the Zaitsev product(s) resulting from elimination involving C2-C3 (i.e., the carbon atoms depicted with stereobonds). Show the product stereochemistry clearly
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules. What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)
When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, 2.33 g of copper was heated with excess sulfur to yield 1.76 g of copper(I) sulfide. What is the percent yield
General formula for a simple sugar. What are the 2 different sugar ring forms and how are they different.
you have 3 l of gas at a certain temperature and pressure. what would the volume of the gas be if the temperature
A salt dissolves in water to form a green solution. A precipitation is formed when the aqueous solution is treated with buffer NH4C/NH3 and thioacetamine.
A reaction which is second order in reactant B has a rate constant of 1.1*10^-3 L/mole*sec. How long would it take it for the concentration of B to be reduced to 65% of its original value
a sample of argon gas is at a pressure of 1.24 multiplied by 10^4kpa and a temperature of 24 degrees celcius in a rigid 25-L tank. how many moles of argon does the tank contain?
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