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i) Compute the number of atoms in the subsequent unit cells a.) body-centered cubic structure b.) Hexagonal structure. ii.) Compute the packing efficiency of each above unit cell.
You collect a distillate sample which has a refractive index of 1.391. Assuming that the refractive index of the hexane + toluene mixture varies linearly with mole fraction, what is the mole fraction of hexane in your sample?
1. at 25 oc the second order rate constant for thereaction i- clo- ----gt io- cl- is 0.0805 m-1s-1. if asolution is
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
Does a precipitate form? Show all calculations. Calculate the concentration of each ion at equilibrium.
The equilibrium constant, Kc, for the following reaction is 1.29E-2 at 600 K: COCl2(g) CO(g) + Cl2(g) Calculate the equilibrium concentrations of reactant and products
For the reaction shown, calculate how many moles of each product form when the given amount of each reactant completely reacts. Assume that there is more than enough of the other reactant. C3H8(g)+5O2(g)->3CO2(g)+4H2)(g)
the vapor above a mixture of pentane and hexane at room temperature contains 35.5 pentane by mass. what is the mass
An important characteristic in the fischer esterification mechanism is the formation of a tetrahedral intermediate which is the result of. the alcohol attacking the 2-phenylacetic acid with the subsequent loss of a proton.
A 19 mL sample of a solution of Li2S was diluted with water to 81 mL. A 25 mL sample of the dilute solution was found to contain 0.9 M Li+. What was the concentration of Li2S in the original undiluted solution
Initially a mixture contains 0.629 mol each of N2 and O2 in an 6.64-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C.
a 1.00 ml sample of dilute acetic acid required 23.4 ml of 0.10 m sodium hydroxide solution to titrate the sample to a
If you want to dope GaAs to make an n-type semiconductor with an element to replace Ga, which of the elements below would you pick
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