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For the reaction represented by the equation Cl2 + 2KBr ® 2KCl + Br2, calculate the percentage yield if 200. g of chlorine react with excess potassium bromide to produce 410. g of bromine.
calcium crystallizes with a body-centered cubic structure a)how many Ca atoms are contained in each unit cell? b)how many nearest neighbors does each Ca atom posses
For the elementary process below, the activation energy is 27 kJ/mol and the enthalpy change is -20 kJ/mol. What is Ea for the reverse process, in kJ/mol
4nh3 5o2 yields 4no 6h2ogiven 1.50g of nh3 reacts with 2.75g of o2 which is the limiting reactant? how many grams of
What is the concentration (in M) of the nitrate ion when 18.4 mL of a 0.744 M solution of sodium nitrate is combined with 15.9 mL of a 0.734 M solution of copper(II) nitrate? Assume the volumes are additive.
4.3 g of Sample D (molar mass = 82.5 g/mol) is combusted in a coffee cup calorimeter. 120 mL of H2O at 23.4°C increases to 28.9°C. What is the enthalpy change for the reaction of D in J/g
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
What is the volume of 135 mL of oxygen gas at 113°C and 870. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
When a person moves from the fed to the fasting state following a meal, there is an incase in the mobilization of the components of triacylglycerol. all of the following help to maintain blood glucose levels during the first 12 hours of the fast
the solubility of silver sulfate in water is 0.223 wv at 35degc. calculate the solubility product of this salt at this
A sample of dichlorormethane has a voloume of 8.043 in.^3. What is the mass of the sample(in lb)? The density of dichloromethane 1.33 g/cm^3.
Write the structures of the following compoundsa) 2,2-dibromo-3,3-dichloro-5,5-difluoro-6,6-diiodobicyclo{2.2.1}heptane
Fourier transform ion cyclotron resonance mass spectrometry yields the highest resolution mass spectra. As an example of the high resolution attainable by this technique
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