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A mixture of Cu2O which is having 4.6127-gram (molar mass 143.091 grams) and CuO (molar mass 79.545 grams) was treated to remove all the oxygen.
The simple fluorides XeF2, XeF4, andXeF6 are all formed by direct reaction of the elements. "Inert" xenon actually forms several compounds, especially with the highly electronegative elements
The average atomic radius of an Fe-V solid solution can be measured by adding the atomic radii of V and Fe, weighted by their respective atom fractions.
A solid non-electrolyte which is having 0.600 g dissolved in the 100 mL water. The observed freezing point is-0.200oC. Determine the approximate molecular mass of the compound? (Kf = 1.86 oC
Determine the concentration of calcium ion in a saturated solution prepared by adding pure CaCO3 to pure distilled water when the Ksp of CaCO3 in the form of calcite is 4.5 x 10-9.
Hydrocarbons do not dissolve in the concentrated sulfuric acid, but methyl benzoate does. Describe this difference and written equation showing the ions that are formed.
How do you determine the formal charges for the different atom types (four single bond, two double bond & two single bond, four double bond) of each structure?
Determine the rate of formation of NO2 *10-6 mol/L/s? Calculate the rate of formation of O2 *10-6 mol/L/s. At a certain moment in the reaction 2N2O5 → 4NO2+ O2, N2O5
Based on the thermo chemical date in Le chatelier's principle, calculate whether the solubility of AgCl in H2O increases or decreases with increasing temperature
Write the supporting equations or mechanism where the appropriate or possible, comment on the likely sources of error in a Grignard reaction-based synthesis?
Discuss the chemical basis for the use of the following reagents in this experiment which is the synthesis of Insect pheromones.
Determine the transmetallation? On what chemical principle is it based? Write down an equation to illustrate a transmetallation reaction?
Determine the mass percent iron in the sample if 25.58 mL of 0.10445M K2CrO7 were needed to reach the equivalence point?
When 3.45g of compound X is heated, 2.72 g of compound Y is formed along w/ some Chlorine gas. 2 different Cl compounds of Platinum are known, compound X & Y.
When the temperature is increased by10.0oC, and the density of a certain gas is 0.7157 g/L at a certain temperature, the density is 0.6905 g/L. If the pressure was held constant at the 1.0 atm for
Consider an N2 molecule confined to a 1.00 m potential well. Determine the lowest energy state for this system? Explain the quantum # of an average N2 molecule in which the translational k
Give equations showing on how this might be done and how the benzoic acid would be generated. The benzoic acid could have been extracted from the ether layer using a sodium bicarbonate solution.
Calculate the lowest energy of an electron placed in a one dimensional potential well of 1x10^-14 m. Describe can a free electron exist in the nucleus?
The density is an example of an intensive physical property of matter. Discuss what does this statement mean and explain how does the temperature affect the density of an object?
Write down a stepwise equation for these reactions when the triphenylmethanol can also be prepared from the reaction of ethyl benzoate with phenyl magnesium bromide and by the reaction of diethyl c
f its column is 450 mL and its contents have a pH of 2, determine the numbers of mold of H does it contain? Suppose that all the H+ come from the HCL, determine the numbers of grams of sodium hydrog
If this energy is derived from the combustion of methane (CH4) at standard conditions (25oC and 1 atm), the heat of combustion of methane is 889.967 kJ/mol and the density of methane is 0.0680kg/m3.
Explain how do you separate impurities from the solid you are purifying in an ideal solvent in each of these situations
Starting with 1.00 ´ 10 20molecules of reactant at time t = 0, a first-order reaction has a half-life of 20.0 minutes. Determine the numbers of molecules remain un-reacted after