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Explain how many grams of lithium bromide, LiBr, could be recovered by evaporating 550. mL of 20.0 percent LiBr solution to dryness (d=1.34 g/mL)?
Compare the volume of 1.0 g of bromine, Br2, as a solid, liquid, and gas. The density of solid bromine just below the melting point of -7°C is 3.2 g/mL, of liquid bromine at 25°C is 3.1 g/mL.
How many Grams of NH3 are consumed when 12.5 grams of 02 react completely in the following equation? I am not sure exactly how to solve this.
For detection using Fluozin-3, what is the excitation wavelength that should be used. For Zincon detection of zinc and copper, what pH range agent do, and why would it be useful for metal detection
The first ionization energy of Ne is 2081 kJ/mol. The sodium ion Na+ is isoelectronic with Ne, but the ionization energy for Na+ is 4560 kJ/mol. Why is it harder to remove an electron from Na+ than from Ne if they are isoelectronic
An aqueous solution of cobalt and nickel ions was examined by multicomponent analysis using a 1.00 cm cell and two different wavelengths (denoted by subscripts 1 and 2) selected based on the absorption spectra of the two ions when complexed
briefly describe your synthetic strategy. you may use any reagents of your choice. if any reagent you wish to use is unstable and has a small shelf-life
Utilize this information to define why infrared detectors using semiconductors are usually cooled to low temperatures example 77 K using liquid nitrogen to reduce dark current that is electrical signal in the absence of an IR source.
Butadiene, C4H6 (used to make synthetic rubber and latex paints) changes into C8H12 with a rate law of rate = 0.014 L/(mol·s) [C4H6]2. What will be the concentration of C4H6 after 2.0 hours if the initial concentration is 0.025 M
When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 108mL sample of blood contains 9.7*10^-5g Ca2+/mL
a 4.5 g sample of LiCl at 25 C dissolves in 25 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy of solution.
When solutions of silver nitrate and calcium chloride are mixed, silver chloride precipitates out of solution according to the equation 2AgNO3(aq) + CaCl2(aq) ---- 2AgCl(s) + Ca(NO3)2(aq)
What is the binding energy per nucleon, in joules, of a chlorine-35 atom, given that the atomic mass equals 34.9595 amu. (e- mass = 0.00055 amu, n mass = 1.00867 amu, p mass = 1.00728 amu, c = 3.00 x 10^8 m/s, 1 amu = 1.6606 x 10^-24 g, 1 J = 1 kG ..
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