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A 20.0g piece of Iron and a 20.0g piece of Gold at 100 degrees celsius, were dropped into 1.0 L of water at 20 degrees celsius. The molar heat capacities of Iron and Gold are 24.19 J/mol C and 25.41 J/mol C respectively. What is the final temperature of the water and pieces of metal?
how many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 255.0 mL of solution. What is the molarity of the ethanol in this solution?
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 138 g toluene and 106 g benzene.
Using your value of the first-order rate constant, calculate the rate of reaction after approximately 15, 45 and 60 minutes has passed?
In N2O, nitrogen is the central atom and the oxygen atom is terminal. In OF2, however, oxygen is the central atom.Use formal charges to explain why.
Starting with 86.3 g NO and 25.6 g H2, find the theoretical yield of ammonia in grams
If the heat of combustion for a specific compound is -1310kj/mol and its molar mass is 60.87 g/mol, how many grams of this compound must
How many milliliters of a .250 M sulfuric acid solution would be required to completely react with 2.398 grams of solid aluminum hydroxide?
A piece of magnesium (mass=16.2 grams) reacts completely with 10.7 grams of oxygen. In the second reaction you have 61.4 grams of magnesium and 103.7 grams of oxygen
calculate the air velocity necessary to suspend 1.5 cm (screened) particles of shredded aluminum; ps = 2.70 g/cm^3 and r= 0.0012 g/cm^3.
a sample of N2O3(g) has a pressure of 0.019atm. the temperature(in K) is then double and the N2O3 undergoes complete decompositopn to NO2(g) and NO(g).
the reaction of concentrated hydrochloric acid with zinc metal -the reaction of solid strontium carbonate with nitric acid
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