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A 15.25 gram sample of copper primarily at 92 degrees is added to a container containing water. The final temperature of the metal is 26.21 o C. Explain what is the total amount of energy in Joules added to the water? Define what was the energy lost by the metal?
A compound containing carbon as well as hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen. The molar mass of the compound is about 28 g/mol. Explain what is (a) the empirical formula of the compound as well as (b) the molecular formula of ..
Which compound must undergo substitution of the bromine by phenolate anion. Depict the structure of the organic product. Comprise the reason behind the reaction as well Is a pyridine meta- or ortho-para
If everyone in the world (population 7 x 10^9) wanted to heat up the water for a 20oz cup of coffee (from 20deg C to 95deg C) using natural gas, how many Kg of CO2 would be produced
an auto mechanic spills 78. ml of 2.5 m h2so4 solution from a rebuilt auto battery. how many milliliters of 1.3 m
Calculate the partial pressure of O2 produced from 1.44 L of 0.508 M N2O5 solution at 45 degrees C over a period of 20.6 hours if the gas is collected in a 11.7 L - container.
Compare this general form of this phase diagram with the interactive phase diagram for CO_2 and classify points a through g on the phase diagram according to the number of phases present at each point.
the pressure in a sealed plastic container is 108 kpa at 41c. what is the pressure when the temperature drops to 22c?
Why is Pyrex glass wool, rather than typical filter paper, used for the filtration of the hot solution of K+, [Al(H2O)2(OH)4]- , excess OH-?
Biological systems usually work at 65% efficiency. How many mL of ethanol can you obtain from the fermentation of 0.65 lbs of sucrose
Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume chance on addition of HCl.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 10.0mL ethanol (density is 0.79g/cc) in enough water to make 250.0mL of solution. What is the molarity of the ethanol solution?
What mass of NaHCO3 (M = 84.0) is required to completely neutralize 25 mL of 0.125 M H2SO4? answer is 0.525 g please expline how
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