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The observed unit cell length is 4.070 if Gold crystallizes in a face-centered cubic (fcc) arrangement. Determine the radius of a gold atom.
Determine point at which minimum occurs (if there is such a point) if objective function z = 5x + 9y is subject to given constraints. (If there is no such point, enter NONE in all answer boxes.)
An ideal gas is confined to one side of a rigid, insulated container divided into the equal volumes by a partition. The following data are known for the initial state of the gas: P1 =300kPa, T1=380K
Assume that the air is four-fifths nitrogen and one-fifth oxygen, and that the temperature did not change, by what percent has the volume of the helium-filled balloon decreased?
Calculate the maximum number of electrons that can be found in each of the following sub shells. 1s, 2f, 4s, 5p and 2 p. Discuss in details.
For use in titrations a student prepared the 1.00 L of a solution of NaOH. The solution was standardized by titrating a 0.8033 g sample of potassium hydrogen phthalate (KHC8H4O4).
Determine the normality of a solution that was prepared by dissolving the 26.4 g of barium hydroxide in the enough water to make the 1370.0 mL of solution.
Identify the percentage by which the benzene is fed in excess, the fractional yield of monochloro benzene, the fractional conversion of benzene, and the mass ratio of the gas feed to the liquid feed
Determine the molecular weight of a small protein if a 0.20-gsample dissolved in the 100 mL of water has an osmotic pressure of9.8 mmHg at the 25.0 degrees Celsius.
Suppose that you were aware of your mistake and you knew the volume you had actually used. Suppose you made up an equilibrium mixture using 2.1 cm3of one reagent, rather than 2cm3 as directed i
Calculate the concentration in kilograms of silicon per cubic meter of alloy if the concentration of silicon in an iron-silicon alley is 0.25 wt%.
Briefly discuss how the Mg to O ratio would have been affected if you had failed to convert all of the Mg3N2 present OT magnesium oxide.
Explain how the moisture affects the percentage calculation. In the dehydration of hydrated salt, the sample was slightly moist because of high humidity.
Determine the molarity of an AgNO3 solution if the 53.7 mL of the KCl solution react exactly with the 46.0 mL of the AgNO3solution? A solution is prepared by placing the 26.7 g of KCl in
Calculate the effect on the boiling point of a solution (e.g., H2O) which is produced by a soluble nonvolatile substance (e.g. NaCl)? Determine the effect of an insoluble substance such as
Can toluene and cyclohexane be separated if the external pressure is 350 torr instead of the 760 torr? Explain what effect does the reduction of atmospheric pressure have on the boiling poi
A kids wear purchaser requires to prepare the assortment for jeans (40%) and shorts (60%). Create assortment plan. Find assortment volumes and model stock plans for jeans and shorts respectively?
Discuss what would be the purpose of using a copper sponge in a fractional distillation? And why the fractional distillation is better than a simple distillation?
A solution is prepared in a 0.900 L volumetric flask by placing 16.5 g of KCl and adding water to dissolve the solid, then filling the flask to the mark.
Determine the energy difference among the least stable chair confirmation of trans-1,4-dimethylcyclohexane and the most stable confirmation of cis-1,3-dimethylcyclohexane by using a value of 3.6 kJ
Determine the ratio of the more stable chair conformation to the less stable conformation at equilibrium at 298Kfor the following compounds: iodocyclohexane and cholrocylcohexane.
Select the ions or atoms from the following sets that are is electronic with each other: (a) Na+, Sr2+, Br- (b) Y3+, Br-, Kr (c) N3-, P3-, Ti4+ (d) Fe3+, Co3+, Mn2+
Write down the equation for the reaction, if any, of lithium with the nitrogen. If there is a reaction producing the LixNy, determine the value of x+y?
Provide the grams H, C, and O present in the substance, the empirical mass, the empirical formula and the molecular formula of the substance. Where the molar mass 116.16 g/mole
Explain how much heat is released when the 4.25 g of propanol is burned? Determine the numbers of grams of propanol must be burned to obtain the 150. kJ of heat ?