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Chlorine has two naturally occurring isotopes,35Cl (isotopic mass 34.9689 amu) and 37Cl (isotopic mass 36.9659 amu). If chlorine has an atomic mass of 35.4527 amu, what is the percent abundance of each isotope?
Eventually, the amounts of the three species do not change further; the system has reached equilibrium. (at this point, approximately 22% of the HI has decomposed.) Describe what is happening in this system at the molecular level.
Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you do the following? (a) Decrease the volume to one third the original volume while holding the temperature constant.
How much energy is required to boil 45.5g of water at 100 degrees C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.
how many moles of sodium hypobromite nabro should be added to 1.00l of 0.050m hypobromous acid hbro to form a buffer
Given the values of DHfo in kJ/mol and So in J/mol K given below, calculate the value of DGo in kJ for the reaction at 298 K
2noclg rarr 2nog cl2gat 450 k the rate constant is 15.4 atm-1s-1. how much time in s is needed for nocl originally at
If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, how many half-lives have passed?
how many calories are needed to raise the temperature of a 45.0 g sample of iron from 15 degree celisus to 25 degree
Consider the following grayscale electrostatic potential map. the region are labeled as to color. which atom is the most likely to be attacked by a nucleophile choose from the answers provided. (a) 1 (b) 2 (c) 3 (d) 4
What was the mass percent of dissolved solids in the sea water? b.) The actual solution chloride content in the sea water was 2.69%
Calculate the surface area for a 35.0mg sample of this material. 3. A 10.0-mL sample of contaminated water had 7.748mg of mercury in it. After treatment with 10.0mg of the new spongy material, 0.001mg of mercury remained in the contaminated water...
create a data table to record your data from the procedure. be sure that the data table is neat and organized and that
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