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100 g of copper Cp=0.38 J/qdeg AT A temperature of 100c is added. To 25 g h2o cp =4.184.qdeg at a temperature of 20 c calculate equilibrium
Specify what ions are present in solution upon dissolving each of the following substances in water. ZnCl2
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
Lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space vehicles.
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
Write net ionic equations for the reaction, if any, that occurs when acqueous solutions of the following are mixed: a) ammonium sulfate and barium nitrate
Calculate %wt of C, H, and O in the compound and find the empirical formula of this compound - What is the weight percent of Cl
What mass of this substance must evaporate to freeze 185g of water initially at 17 degrees Celsius? (The heat of fusion of water is 334J/g; the specific heat of water is 4.18 J/g-K.)
compounds like are known as chlorofluorocarbons. these compounds were once widely used as refrigerants but are now
95.0mL of rm H_2O is initially at room temperature (22.0rm{} ^{circ}C). A chilled steel rod at 2.0rm ^{circ}C is placed in the water. If the final temperature of the system is 21.4^{circ}C.
1500 g of frozen water at 0 degrees celsius and the temperature of the water at the end was 32 degrees celcius. how many calories of heat energy were absorbed.
A sample of oxygen gas at a pressure of 0.996 atm and a temperature of 195oC, occupies a volume of 714 mL. If the gas is cooled at constant pressure until its volume is 544 mL, the temperature of the gas sample will be oC.
A solution contains 1.0 x 10-5 M Na3PO4. Calculate the minimum concentration of Ag+ that would cause precipitation of solid Ag3PO4.
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