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A He+ ion emitts a photon with a frequency of 2.76× 1015 Hz. If the energy of the initial state ofthe He+ ion was -3.49 × 10(-19) J,calculate the energy of the final state. Express answer inscientific notation.
Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.40 mol/L. (Assume T = 25°C.)
a 13 gram sample of calcium reacts with bromine to form 24 grams of calcium bromide. how many grams of bromine are used
Consider a gas in a container with an initial pressure, temperature, and volume. What will happen to the volume of the gas if the number of moles are increased 6 times (6x), the pressure is quadrupled and the temperature is tripled
find the temperature and the pressure of a gas inside the cylinder.1. a gas at 71degc occupies a volume of 0.67 l. at
What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
when nitrogen gas reacts with hydrogen gas ammonia gas is formed. how many grams of hydrogen gas are required to react
detonation of nitroglycerin proceeds as follows 4c3h5n3o9 12co2 6n2 o2 10h2oa if a sample containing 2.00 ml of
reaction takes place in acidic solution, \rm H_2O{(l)} and \rm H^+{(aq)} will be involved in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation
Much commercial hydrochloric acid is prepared by the reaction of concentrated sulfuric acid with sodium chloride:
Find the absolute pressure [kPa] if the gage pressure is 30 psig when the barometer reads 698 mm Hg.
Calculate how many mL of 6M HCl are needed to prepare 100mL HCl solution with a concentration of ~1M.
Suppose 5.0 mol of antimony (III)fluoride is added to 10.0 mol of carbon tetrachloride. How many grams CCl2F2 and SbCl3 are there if the reaction is 100% complete?
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