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A sample of helium gas has a volume of 3.90 L at 29°C. What volume will it occupy at 169°F if the pressure and number of mol are constant?
c2h2g2h2g-gt c2h6gc2h2- delta h 226.7c2h6- delta h -84.7a.write the equation for the heat of formation of c2h6gb. use
a student wants to dissolve the maximum amount of caf2 ksp 3.2 10-11 to make 1 liter of aqueous solution. a into
Explain the percent concentration of a solution is a ratio of the amounts of dissolved solute and solution, expressed as a percentage. The percent concentration of a solution can be written usually as %concentration=amountofsoluteamountofsolutionÃ..
Horizontally write the molecular orbital configuration for O2 2- , O2, and O2 -. Then state the bond order for each. Which of these compounds and ions are paramagentic and which are diamagnetic
A quantity of gas under a pressure of 1.78 atm has a volume of 550 cm square. the pressure is increased 2.50atm while the pressure remains constant what is the new volume.
You perform a mass spectral analysis and determine that Sample A has a base peak at m/e = 72 as well as Sample B has a base peak at m/e = 58. For alkyl amines such as A and B, base peaks result from cleavage alpha to the N atom. Allot structures t..
Water treatment plants commonly use chlorination to destroy bacteria. a byproduct is chloroform- CHCl3, a suspected carcinogen. This is produced when HOCl, formed by reaction of Cl2 and water
If 5.45mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram
A sample containing an unknown mixture of A and B is measured in a 1.00 cm path length cuvette and its absorbances are found to be 0.182 at 465 nm and 0.398 at 575 nm. What are the concentrations of the two dyes in the unknown
chloride solution and it turned out to be 8.35g, what is the percentage composition of the iron (III) chloride solution?
what is the role of nh4cl in reduction of camphor with
How to devise a multi-step synthesis of butanoic acid and hexanoic acid from 1-bromopentane
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