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A sample of liquid mercury (mass 79 g and temperature 132.0 C) is poured into 99 g of H2O at 16 C. Calculate the final temperature of the mixture, assuming no heat is lost. The heat capacities of Hg and H2O are 27.98 and 75.33 J/mol/K, respectively.
Write the net-ionic equation that represents the reaction that occurs when the C2H5NH2 solution is mixed with the HCl solution.
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
Tungsten trioxide (WO3) has a rich yellow color and is often used as a pigment in ceramics and paints. In order to test a ceramic vase for its WO3 content
How many grams of oxygen gas are required to produce 7.68 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water?
The partial pressure of oxygen gas in an atmosphere at STP is approximately 0.2 atm. If I capture 11.2 liters of atmospheric gas at STP in a flask,
If units were explicitly specified for Kp of the reaction above, they would be [atm]n. What would be the value of n for this reaction?
Sodium nitrate decomposes upon heating to form sodium nitrite and oxygen gas. This reaction is sometimes used to produce small quantities of oxygen in the lab. How many grams of sodium nitrate must be heated to produce 128g of oxygen?
Ethylene, C2H4, and water react under appropriate conditions to give ethanol. The reaction is C2H4(g) + H2O(g) C2H5OH(g) An equilibrium mixture of these gases at a certain temperature
salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. identify the precipitate and explain why it is formed.
what spontaneous reaction will occur in aqueous solution among the ions Sn4+, Sn2+, Co3+, and Co2+ ? What will be the E°cell for this reaction?
write the half reaction for oxidation of n-butanol. (d) Calculate Eo' at 25.0 oC for the n-butanol half reaction in (c) above
Suppose a nearby storm passage causes the wind speed in the town to suddenly increase to 10.0m/s. What is the carbon monoxide concentration one hour later?
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