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One mole of any gas has a volume of 22.414 L at STP. What are the densities of the following gases in g/L at STP?
a) CH4
b) CO2
c) O2
The enthalpy of formation of MX2 is ?Hf° = -829 kJ/mol. The enthalpy of sublimation of M is ?Hsub = 117 kJ/mol. The first and second ionization energies of M are IE1 = 717 kJ/mol and IE2 = 1433 kJ/mol.
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl.
how you will prepare 3-methly-1-butanol from a grignard reagent and any needed aldehyde or ketone.
Calculate the atomic mass of zinc from the relative peak intensities in the following spectrum. peak intensity for zinc 64 = 100 peak intensity for zinc 66 = 57.4 peak intensity for zinc 68 = 38.6
It requires 41.16mL of a particular NaOH solution to bring 1.0054 g of KHP (204.24 g/mol) to the bromocresol green endpoint. a 0.8054 g sample of an unkown monoprotic acid requires 44.30 ml of the same solution to reach the same endpoint. what is ..
Isooctane (2,2,4-trimethylpentate), one of the many hydrocarbons that make up gasoline, burns in air to give water and carbon dioxide.
The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to obtain 355g of pure Cu
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
Explain the meanings of Vmax and Km. How do you get them from a graph of v vs. [S]. Draw a generic example and label appropriately. What are the differences between a competitive and non-competitive inhibition
Given the general equilibrium A + 2B C + D and the following concentrations, calculate the equilibrium constant. [A] = 0.2 M, [B] = 0.3 M, [C] = 0.1 M and [D] = 0.2 M
What is the number of moles of iron produced if only 4 moles of NaN3 are consumed. b)Determine the mass of Na2O produced if only 25g of iron
want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use
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