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When metabolized, an orange provides 445 kJ of energy. What mass of water could this amount of energy raise from 25.0 degrees calcius to the boiling point?
How many grams of ice at -9.4 can be completely converted to liquid at 6.2 if the available heat for this process is 5.96×103? For ice, use a specific heat of 2.01 and = 6.01.
a gas is confined to a cylinder under constant atmospheric pressure. when 415 j of heat is added to the gas it expands
Using your average value for Kc and the concentrations provided for the reactants, determine the absorbance expected when 16.00mL of Fe 3+ (aq) is reacted with 10.00 mL of SCN (aq).
Propane burns in oxygen to produce carbon dioxide and water. c3h8 +5o2 yeilds 3co2 +4h2o Calculate the math of co2 that can be produced if reaction of 44g of propane and suficient oxygen has a 60% yeild.
Calculate the difference in energy between the second and first levels and between the fourth and third level (i.e. find Delta E = En Upper - En Lower for n upper=2, n lower =1 and for n upper = 4, n lower =3)
A cylindrical steel pipe is used to transport hydrogen gas in a certain process. The density of the hydrogen in the pipe is 5kg/m3 and the density in the environment is effectively zero
(Assume that each G protein activates a single unique adenylyl cyclase.) Calculate the number of moles of cAMP that are produced per second. Enter your answer to at least two significant figures
In a combustion process in which a specified percentage of excess air is used, and in which CO is one of the products of combustion, will the analysis of the resulting exit gases contain more or less oxygen than if all the carbon had burned to CO2
Magnesium has three naturally occurring isotopes, 24Mg (isotopic mass = 23.9850 amu, abundance 78.99%), 25Mg (isotopic mass = 24.9858 amu, abundance 10.00%), and 26Mg (isotopic mass = 25.9826 amu, abundance 11.01%)
Nitrating Acetanilide- draw the resonance forms for the arenium ion formed during your reaction (nitroacetanilide)
A 50 mL sample of 0.10 M HCl is mixed with 100 mL of 0.20M NH3. What is the resulting pH? (Kb for NH3 = 1.8 x 10-5).
I am given the 10 ml of .200M Fe(NO3)3 and .25 ml of .00200 KSCN and 14.75 ml of .500 M of HNO3. How do I figure out the initial concentration of FE3+ and SCN-.
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