What volume of water is needed to dissolve calcium carbonate
Calcium carbonate, or limestone, is relatively insoluble in water. At 25?C, only 5.8 mg will dissolve in 1.0 liter of water. What volume of water is needed to dissolve 5.0 g of calcium carbonate?
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How many electrons could occupy a subshell with the following quantum numbers? A) n=2, l=1 B) n=3, l=1, ml= -1
Tritium (symbol T) is produced in the upper atmosphere by neutron cosmic rays primarily through the 14N(n,T)12C and 16O(n,T)14N reactions.
A Cu/Cu2+ concentration cell is constructed in which both electrodes are pure copper. The Cu+2 concentration for one cell-half is 0.5 M, for the other it is 0.1 M. Is a voltage generated between the two cell halves? If so, what is its magnitude and
The initial state of a gas is pressure =0.80, temperature =45 degree celcuis, volume=1.4 liters. The conditions were changed to pressure=0.76atm, volume=1.4liters, the new temperature is
A student separated the components of a 2.743 g sample of beach sand. The separation yielded 0.632 g sea salt, 0.456 g sea shells, and 1.352 g sand. (A) calculate the mass percent of each component in the original mixture. (B) Calculate the total
Question: For a given equilibrium reaction at 25 degrees celsius, the equilibrium coefficient is 1.5x10^ -4. If the value of the forward Arrhenius factor is 0.12 and the activation energy of the forward reaction is 44kJ, what is the value of the r
Barium chlorate in solution mixed with Silver fluoride
If the rate that hydrogen chloride is being lost is 0.10 M/s, what is the rate that molecular oxygen is being lost? If the rate that water vapor is being formed is 0.35 M/s, what is the rate that hydrogen chloride is being lost?
How many grams of the K2C2O4 X H2O in the salt mixture remain unreacted (in excess)? f. what is the percent by mass of each salt in the mixture
Identify the relative molar amounts of the species in 0.10 M NaBr(aq). If equal, place the species in the same box. H2O OH- H30+ Br- Na+ NaBr
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