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When solid Ca(CH3COO)2 is dissolved in a nearly saturated solution of Ca(CH3COO)2 the solution becomes warmer. This information indicates that if the temperature of a solution is decreased,
a. delta H will become zero
b. the solubility of Ca(CH3COO)2 will increase
c. delta H will become negative
d. the solubility of Ca(CH3COO)2 will decrease
e. the solubility of Ca(CH3COO)2 will not change
can you find out the name of the hydrate and its chemical formula if 5.00 g of fecl3 . xh20 are heated 2 grams of water
What is the enthalpy change for the combustion of 12.5g C4H10 in excess oxygen? C4H10 (g) + 13/2 O2 (g) ------? 4 CO2 (g) + 5 H2O (g) H0 = -1895 kJ
A solid sample weighing 0.2736 g of ethylammonium chloride appreciably contaminated with ammonium chloride (but no other contaminants) required 34.20 mL of 0.08177 M NaOH for complete titration. Find the weight percent of each component in the mix..
sodium hydrogen carbonate (NaHCO3) is mixed with 10.0 grams of sodium carbonate in enough de-ionized water to give a total volume of 250.0 ml. What is the pH of the resulting solution
Nitrogen reacts with a metal to form a compound in which there are three atoms of the metal for each atom of nitrogen. If 1.486 g of the metal reacts with 1.000 g of nitrogen
calculate the minimum number of grams of C3H8(g) that must be combusted to provide the energy necessary to convert 2.93 kg of H2O from its solid form at -13.0°C to its liquid form at 75.0°C.
Assuming that the electrical conductivity of a FCC unit cell of copper depends on the path of electricity along cube. Would this also be true if a multiple crystal sample of copper was used instead of the single crystal used in the above assumptio..
This electrophilic addition reaction involves a carbocation intermediate. Protonation of which sp2 hybridized carbon would form the most stable carbocation?
When 7.51 grams of propane reacts with excess oxygen how many grams of carbon dioxide are formed
A gas mixture contains helium and oxygen at partial pressures of 255 torr and 0.450 atm.What is the total pressure in mmHg of the mixture after it is placed in a container one-half the volume of the original container? (Temperature remains constan..
What is the rate of formation of carbon dioxide over the specified time period in this reaction
Nitrogen and hydrogen gases react to form ammonia gas as follows: N2(g)+3H2(g)-->2NH3(g) At a certain temperature and pressure, 1.7 L of N2 reacts with 5.1 L of H2. If all of the N2 and H2 are consumed, what volume of NH3(g) is produced at the sam..
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