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A quantity of 31.8 g of water (Cp=75.3 J/Kmol) at 26.5 degrees Celcius is mixed with 16.0 g of hydrogen peroxide (Cp=89.1 J/kmol) at 75.0 degrees Celcius.
a) Calcuate the final temperature of the system assuming the mixing is carried out adiabatically.
b) Calculate teh entropy change for the water, peroxide, and the entire system
Explain your reasoning for each by writing a balanced net ionic equation to describe its behavior in water.
if the freezing point of a .106 m CH3COOH solution is -.288 degrees celsius, calculate the percent of the acid that has undergone ionization?
if 6.73 g of NaCo3 is dissolved in enough water to make 250. mL of solution what is the molarity of the sodium carbonate ?
what will be the final temperature of the solution in the calorimeter? The heat of solution,delta H solution, ofCaCl2of is -82.8kj/mole.
A weak acid with a starting concentration is 12.5% dissociated. a) Calculate the [H3O+], pH, [OH-] and pOH of the solution. ([OH-] = 1.1 × 10-13 M, pOH = 12.96
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
Determine the rat of consumption of O2 if the initial concentration of NH3 was 0.6719 M and decreased to 0.5827 M after 0.3883 hours
When 414 J of heat is added to the gas, it expands and does 104 J of work on the surroundings. What is the value of delta H?
the normal boiling point for mercury is 357c. what is the boiling point at an elevation where the atmospheric pressure is 635 torr.
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
Determine the theoretical mole ratio of NaCl to NaHCO3.
A foundry worker throws a hot, freshly cast piece of iron into 10 liters (10 kg) of water to cool off. The initial temperature of the water is 25 degree celcius and the initial temperature of the iron is 100 degree celsius.
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