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In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of hydrogen molecules to form water and released 1.715 x 10^3 kJ of heat. Calculate the corresponding mass change in this process?
Calculate the approximate amount of unknown acid to use such that it would require about 15 mL of 0.05M NaOH to reach the endpoint.
A nucleus of mass number 27 contains 14 neutrons. An atomic ion of this element has 10 electrons in it. Write the symbol for this atomic ion
calculate the Henry's law constant for oxgen solubility in freshwater undr these conditions
liquid water and sealed at 25C and a pressure of 1.00 bar. What is the pressure if the temperature of the system is raised to 60.0C?
Calculate how many whole drops (.05 mL/drop) of 6 M HCl are required to dissolve this. (I found this to be 11.59 drops
explainnbsp the structure for 4-ethyl-23-dimethyl-2-heptene?using a sample of gas under a 622 kpa of pressure nbspand
Outline a complete mechanistic sequence for the reaction of 2-bromobutane with potasium2-methyl-2-propoxide in 2-methyl-2-propanol solvent to form thethree alkenes generated in the reaction
1. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the slope. 2. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the y intercept
Caffeine with a mass of .265 g was used to prepare caffeine salicylate derivative. How do you find the theoretical yield of caffeine salicyIate
The pressure on 200 ml of oxygen gas changes from 380 mm hg to 760 mm hg. The temperature does not change. What is the new volume of the oxygen gas?
Explain why the solubility of different cations groups can be affected by the acidification of their solutions
if water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. if 10.3 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 20 celcius and .989 atm
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