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A 35.8-g sample of cadmium metal was melted by an electric heater providing 4.66 J/s of heat. If it took 6.92 min from the time the metal began to melt until it was completely melted, what is the heat of fusion per mole of cadmium?
iron(111)oxcide is formed when iron cobines with oxygen in the air. how many grams if Fe2O3 are formed when 16.7 Fe reacts completly with oxygen?
Calculate ΔG° at 25°C for the redox rxn between Sn4+ and Fe that takes place in a voltaic cell if E°cell= 0.60V. The rxn is: Sn4+(aq) + Fe(s)→ Fe2+(aq) + Sn2+(aq)
If 31.7mL of 0.220M KOH is required to completely neutralize 20.0mL of a HC2H3O2 solution, what is the molarity of the acetic acid solution. HC2H3O2(aq) + KOH(aq) â KC2H3O2(
If 0.100g of a known inorganic complex [Ni(H2O)4(NH3)2]Cl2 is dissolved in 1000mL of water how many mL of 0.025 M AgNO3 would be required to titrate the liberated chloride
the balloon reaches an altitude of 100m, where the pressure was 658 mmHg and the temperature was -8c. what was the volume in liters of the ballon at these conditions?
In a reversible adiabatic expansion of an ideal gas, the pressure and volume are related PV^gama= Constant by . Show that the work of adiabatic expansion from P1, V1 to P2,
If the energy needed to raise the temperature of the water to 28.1 C is obtained from the combustion of methane (CH4), what volume of methane, measured at STP must be burned
Suppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How much heat energy was released? (Hint: Use the specific heat equation.) Give your answer
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