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Guys please help me with this problem, thanks in advanced! 200 mg of KOH are added with H2O until a final volume of 720 ml is reached. Determine the pH of the solution obtained and tell if the solution is acidic or basic.
calculate the lattice energy (in units kj mol-1) for zn0 crystal using Eq.3.4 based on electrostatic model and using a Born-Haber cycle. compare the two answers and comment on any difference.
explain the reason for the variation of the first ionization energies of the third period elements
write the values of four quantum numbers for 3d electron
1) how many moles of Hal are in 425 mL of a 15.0 M solution of HCl
2) if a chemist has a stock solution of HBr that is 10.0 M and she would like to make 450.0 mL of 3.0 M HBr how much water would she add
3) if you react 30.0 mL of 5.6 M HCl with an excess of Mg(OH)2 how many moles of Mg(OH)2 will be produced
2) if a chemist has a stock solution of HBr that is 10.0 M and she would like to make 450.0 mL of 3.0 M HBr how much water would she add
3) if you react 30.0 mL of 5.6 M HCl with an excess of Mg(OH)2 how many moles of Mg(OH)2 will be produced
Assessing the Speciation of Bromomethane and Atrazine in Quartz Sand
Consider a confined volume of pure quartz sand exposed to air (RH = 45%), with a porosity = 0.5 (see Box 5.4) a density of 2.65 g cm-3 and a surface area A = 1 m2 g-1. What fraction fia of (a) the fumigant bromomethane and (b) the herbicide atrazine will be present in the pore air at 15 ˚C and at 35 ˚C assuming a linear adsorption isotherm?
Hint: Consult Box 11.1 Use Eq. 11.4 for estimation of the adsorption enthalpy of the two compounds.
Book: Environmental Organic Chemistry 3rd edition
Consider a confined volume of pure quartz sand exposed to air (RH = 45%), with a porosity = 0.5 (see Box 5.4) a density of 2.65 g cm-3 and a surface area A = 1 m2 g-1. What fraction fia of (a) the fumigant bromomethane and (b) the herbicide atrazine will be present in the pore air at 15 ˚C and at 35 ˚C assuming a linear adsorption isotherm?
Hint: Consult Box 11.1 Use Eq. 11.4 for estimation of the adsorption enthalpy of the two compounds.
Book: Environmental Organic Chemistry 3rd edition
What is the concentration of a solution of a volume of 2.5 liters containing 660 grams of calcium phosphate?
Make a list of any ten material made of copper used in daily life.also write their properties and uses
Explain the chemistry of analytical methods
which of the element is found in period 4 and is a member of group 17?
the electron configuration of a particular element is 1s2 2s2. Name an element that has similar chemical properties?
Name an element that has an electron configuration that ends in p5?
an element ending in electron configuration p6 would be classified as an
the electron configuration of a particular element is 1s2 2s2. Name an element that has similar chemical properties?
Name an element that has an electron configuration that ends in p5?
an element ending in electron configuration p6 would be classified as an
