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The concentration of NaCl in solution is 0.25 M. What volume of solution contains 5.0 g NaCl. A. 1.4 L B. 73 mL C. 340 mL D. 2.9 L
Ammonia reacts with oxygen according tot he following equation: 4NH3+5O2=4NO+6H2O deltaHrxn = -906kJ Calculate the heat (in kJ) associated with the complete reaction of 155g of NH3.
An unknown volume of water at 18.2 degrees Celsius is added to 21.6 mL of water at 35.0 degrees Celsius. If the final temperature is 23.5 degrees Celsius, what was the unknown volume
Write an equation, clearly showing the stereochemistry of the starting material and the product, for the reaction of (S)-1-bromo-2-methylbutane with sodium iodide in acetone.
What is the theoretical mass of xenon tetrafluoride that should form when 130 g of xenon is reacted with 100 g of F2? What is the percent yield if only 145 g of XeF4 is actually isolated?
write a complete and balanced molecular equation and identify the precipitate that forms when aqueous solutions NaOH and Cu(NO3)2 are mixed and identify all phases.
A 320. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 59°C?
A sample of nitrogen gas was collected over water at 20 degrees celsius and a total pressure of 1.00 atm. A total volume of 2.50 x 10^1 mL was collected. What mass of nitrogen was collected
The conversion of cyclopropane, an anesthetic, to propylene has a rate constant k - 1.3x10?6 s?1 at 400°C and k = 1.1x10?5 s?1 at 430°C. a) What is the activation energy in kJ mol?1
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.
A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?
A 100.0 mL aliquot of 0.100 M weak base B (pKb = 5.000) was titrated with 1.00 M HClO4. Find the pH after 1.3 mL of acid is added. Then Find the pH after 11.1 mL of acid is added.
A bottle of vinegar is labeled 5.0% acetic acid. If the bottle contains 240.0ml of acetic acid, how many grams of acetic acid are contained in the bottle?
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