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Given that an atom of a semiconductor has a diameter of 2.45 , what is the maximum number of moles that fit in the channel of a processor chip that is 80.0 long, 84.2 , wide and 435 thick? Assume that the atoms stack in a simple cubic arrangement.
What information does a chemist obtain from the mass spectrum of a compound?
when a substance is being reduced, what type of current is produced?
Assuming that equilibrium has been reached, calculate Kc and Kp for the reaction.
What common mono-positive ions will coprecipitate with barium sulfate in the determination of soluble sulfate
At the point of equilibrium there were 82.63 g of Br2(l). Determine the total pressure in the 50.0 L container at equilibrium.
Based on the pKa of benzoic acid and the pKa of HCl, what do you hypothesize will happen in terms of reaction equilibrium. The equilibrium will favor the starting materials (sodium benzoate and HCl) because HCl has a lower pKa
List these compounds in order of increasing molar solubility in water show your calculations.
Determine the empirical formula of each of the following compounds. (Type your answer using the format CH4 for CH4 and list the elements in the same order as they are mentioned in the problem.
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 102 L and a pressure of 131 atm at 23 celsius
what species( ions/molecules)are present at the halfway point in the titration tword the stoichometric point in a.
even with a drying tube leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. why?
Sample has a mass of 0.171 g at a pressure of 761 mm Hg and a temperature of 32oC. What is the molar mass of the gas? R=0.0821 L atm / mol K
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