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A solution is made by diluting 235 mL of 0.120 M Fe(NO3)3 solution with water to a final volume of 0.500 L. Calculate
a. The molarities of Fe(NO3)3, Fe3+, and NO3- in the diluted solution.b. The molarities of Fe3+ and NO3- in the original solution.
moist air exerts lower pressure and dry air exerts high pressure. how would the volume of the hydrogen gas that was ollectes been different if this eperiment was done on a very rainy day/ on a very dry day?
what is the pH of a buffer system in which the relevant pKa is 5.0 and there is an acid/base ration of 2
carbon dioxide was allowed to effuse through a small opening under constant pressure conditions. It required 683 s for 1.00 L of this gas to effuse. Calculate the effusion time of ozone (O3) under identical experimental conditions
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
Calculate the distance NH3 gas and HCl gas would travel if a 100.0-cm tube were used, based on the accepted molar mass of the two gases
the chloroform would remain as liquid in the flask after equilibrium is established between liquid and vapor chloroform? (the vapor pressure of chloroform at 20 degrees C is 0.208 atm)
Calculate an approximate delta_h in kilojoules for the industrial synthesis of ethyl alcohol from ethylene: C2H4(g) + H2O(g) -> C2H5OH
A gaseous reaction occurs at a constant pressure of 30.0 atm and releases 58.0 kJ of heat. Before the reaction, the volume of the system was 9.00 L.
Calcium (Ca+2) and Magnesium (Mg+2) ions are both present in seawater [Ca+2] = 0.011M and Mg+2 = 0.059 M. When aqueous sodium hydroxide (NaOH) is gradually added to the seawater, calcium hydroxide
an ideal diesel engine has a compression ration of 20 and uses air as the fluid. the state of air beginning the
There are about 1,200,000 automobiles registered in Pine Bluff, AR. Each automobile emits 3.1 g NO2 and 1.6 g CH4 per vehicle mile. Each automobile travels 30 miles round trip per working day. What is the total volume in cubic meter of NO2 and CH4..
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
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