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Two 20.0g-ice cubes at -12.0 C are placed into 235 g of water at 25.0 C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
heat capacity of H2O (s) 37.7 J/(mol K)
heat capacity of H2O (l) 75.3 J/(mol K)
enthalpy of fusion of H2O 6.01 kJ/mol
Determine the theatrical yield if 1.56 grams of hydrogen is permitted to combines with 9.70 grams of nitrogen producing 1.43 grams of ammonia?
When solutions containing silver and chloride ions are mixed, silver chloride precipitates: Ag+ (aq) plus Cl- (aq) ---> AgCl(s)
Allyl sulfide, C6H10S, is a compound that has the odor of garlic. How many sulfur atoms are in 23.2 g of C6H10S?
A sports beverage company is seeking an energy supplement to increase the performance of the athletes. An ongoing research project suggest the use of a tetrasaccharide with the following characteristics
What is the temperature change of the water if the downstream diameter is 3.8 cm? If it is 7.5 cm? What is the maximum temperature change for an enlargement in the pipe?
Determine the product of the reaction. As a general rule, a metal will combine with a nonmetal to form an ionic compound.
calculate the number of moles of carbon dioxide formed if 23.1 ml of sodium carbonate reacts with excess hydrochloric acid.
react with an excess of H3PO4, how many grams of water and how many grams of Ca3(PO4)2 will have on the products side? Also, what type of reaction is it?
What mass of NaHCO3 (M = 84.0) is required to completely neutralize 25 mL of 0.125 M H2SO4? answer is 0.525 g please expline how
E85 fuel is a mixture of ethanol and gasoline. What is the mass in kilograms of E85 (d=0.758g/mL) in a 14.0 gallon tank.
In what ways might the one(s) that does (do) not have a metabolic energy source (caffeine) provide the perception of increased energy after consumption?
What is the final Celsius temperature if 4.55 L of nitric oxide gas at 35°C is cooled until the volume reaches 1.00 L
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