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A sample of air was compressed to a volume of 27.0 L. The temperature was 297.0 K, and the pressure was 8.70 atm. How many moles of gas were in the sample? Enter units.
If 12.5 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 22°C and 753 mm Hg?
Name two important forms of injury from electricity and how to avoid them
Nitrogen and oxygen forms an extensive series of oxides with the general formula NxOy. What is the empirical formula for an oxide that contains 36.85 % by mass nitrogen?
Which of the following transitions in a hydrogen atom would emit the highest energy photon? a) n=1 to n=2 b) n=3 to n=2 c) n=5 to n=1 d) n=2 to n=8 e) n=6 to n=5
Describe how a phospholipid differs from other fatty acids. How does this difference allow the formation of a bilayer in an aqueous medium
How long will it take 10.0 mL of neon gas to effuse through a porous barrier if it has been observed that 91.2 minutes are required for 10.0 mL of Cl2 gas to effuse through the same barrier?
The normal range for the carbonyl of a ketone is 1715 cm-1. Why does the carbonyl peak for cyclopentanone appear at 1750 cm -1
In a reaction mixture at equilibrium, the partial pressure of NO is 119 torr and that of Br2 is 175 torr. What is the partial pressure of NOBr in this mixture? Kp=28.4 at 298 K.
What types of intermolecular forces are present in P4. Dipole is there due to the loan pairs on Phosporus atoms. Or, is it only dispersion forces.
A voltaic cell is constructed from a standard Mn2+|Mn half cell (Eored = -1.180V) and a standard Hg2+|Hg half cell (Eored = 0.855V).
A standard basketball has a volume of 7.47 L. What is the volume of the basketball in gallons? The speed limit on many United States highways is 65.0 miles per hour
What mass of rm KCl is needed to precipitate the silver ions from 15.0 mL of 0.190 M rm AgNO_3 solution?
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