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Calculate the volume of 0.25 M NaI that would be needed to precipitate all the g2+ion from 45 mL of a 0.10 M Hg(NO3)2 solution according to the following reaction:
2 NaI(aq) + Hg(NO3)2(aq) ? HgI2(s) + 2 NaNO3(aq)
Why fluids are important in chemical engineering - enormous number of materials normally exist as gases or liquids, or can be transformed into such phase and explain systematic description of change in fluid systems, mechanical change
Piston arrangement: compressing air, A piston arrangement has been developed to compress air adiabatically from 360C
Indium antimonide (InSb) is a semiconductor with a narrow band gap of 0.17eV and an intrinsic carrier concentration of 2×1016cm-3. The mobility of electrons in InSb is 78000 cm2/V⋅s and their effective mass is 0.014m0, while the holes have a mobility..
Given the following experimentally determined standard molar entropies at 298.15 K and 1 bar, S [CH3OH]=126.8 J⋅K-1⋅mol-1 S°[CO]=197.7 J⋅K-1⋅mol-1
(1) Determine the mass and the temperature of the steam in an insulated piston-cylinder arrangement if sufficient steam is admitted to displace the piston by one cubic foot. The cylinder originally is empty, and the piston main- tains a constant pres..
Calculate the atomic weight (in amu) of an element (X), given the following data: 24X : 24.000 amu at 0.7879 fractional abundance 26X : 26.000 amu at 0.1017 fractional abundance 25X : 25.000 amu at 0.1113 fractional abundance
you are an ehamps professional returning home from your plant on a summer friday afternoon at about 4 p.m. you have
describe the principles of a vapour adsorption refrigeration system and compare this to a vapour recompression system.
using the concept of a mass balance describe how environmental engineers and scientists model the carbon cycle in the
Consider 1 mole of ideal gas at 1 bar and 300 K, which of the following statements is true? The absolute entropy of the system is negative. Helium (m=4 amu) will have a larger entropy than argon (m=40 amu).
What is the best way to report density and absolute error in density based on the mass and volume measurements? Choose the single best answer 10.07 ± .194 gm/ml 10. ± .2 gm/ml
Choose an initial guess for reactor temperature and pressure within the range provided and simulate the process described - Determine a metric to quantify the reactor performance then use this parameter to optimize the reactor temperature and pressu..
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