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Given that an atom of a semiconductor has a diameter of 3.12 , what is the maximum number of moles that fit in the channel of a processor chip that is 63.5 long, 84.1 , wide and 465 thick? Assume that the atoms stack in a simple cubic arrangement.
In the balanced molecular equation for the neutralization reaction between phosphoric acid and potassium hydroxide, the products are: a. 3H2O b. K3PO4 + 3H2O c. KPO4 + H3OH d. K+(aq) + PO43-(aq) + 3H+ + 3OH-
answer the following questions for the soil data listed below.nbspnbspnbspnbspnbspnbspnbspnbsp exchangeable cations
The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually t-butanol absorbs water on exposure to the air. If the freezing point of a 9.2-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sam..
The concentration of the first ion to precipitate (either Al3+ or Ca2+) decreases as its precipitate forms. What is the concentration of the this ion when the second ion begins to precipitate?
if 6.73 g of NaCo3 is dissolved in enough water to make 250. mL of solution what is the molarity of the sodium carbonate ?
One can approximate boiling point at reduced pressure using a pressure-temperature nomograph. What would you expect the observed boiling pint to be at 50 torr(mm) for a liquid that has a boiling point
A reverse osmosis unit is to be used to concentrate the aqueous solution of metal complexes left over from a metal finishing operation. A pressure of 100 bar is exerted on the solution side of the membrane during concentration.
What volume would be occupied by 100 g of oxygen at a pressure of 1.50 atm and a temperature of 25ºC?
a lake in central texas contains 5.0 billiion liters of water. the pH is normally 6.4, but it is tested at 5.6. how much CaCO3 should be added to bring the pH to a more reasonable 6.0?
What is the value of the equilibrium constant at this temperature for the reaction of SO2 with N2O to form SO3 and N2 (balanced with lowest whole-number coefficients)?
A 4.50 g sample of LiCl at 25 degrees Celsius dissolves in 25.0 mL of water also at 25.0 degrees Celsius. The final equilibrium temperature of the resulting solution is 60.8 degrees Celsius. What is the enthalpy of solution, delta H solution, of L..
a 5.00 l volume of ethane gas is heated from 298 k to 596 k. if the pressure remains constant what is the final
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