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A sytrofoam cup calorimeter is calibrated by adding heat to the water in it with an electrical heater. When 1350J of heat is added the temperature of the calorimeter raises by 3.5 C. When 1.0 g of NaOH is dissolved in this same calorimeter the temperature raises by 1.6 C. Calculate the calorimeter constant and enthalpy for one mole of NaOH.
a small bubble rises from the bottom of a lake where the temperature andnbsppressure are 4degc and 3.0 atm to the
A bottle containing 305 g of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
In column chromatography portion of the Friedel-Crafts acylation of ferrocene, why is ferrocene yellow, acetylferrocene orange-red, and diacetylferrocene dark. What accounts for the color differences.
At a certain temperature, the root mean square speed of CH4 molecules is 1610 km/h. what is the root mean square speed of CO2 molecules at the same temperature ?
A solution of Na3AsO4 is added dropwise to a solution that is 0.0643 M in Bi3+ and 0.000180 M in Cd2+. What concentration of AsO43- is necessary to begin precipitation
In a separate experiment, 41.6 g of ClF3 was introduced into an empty 2.00 L container at 700.0 K . What are the concentrations of ClF3, ClF, and F2 when the mixture reaches equilibrium
Did an experiment where we extracted the caffeine in 1 bag of tea. We added the bag of tea leaves to the solution where the sodium carbonate solution. Explain what the purpose of adding the sodium carbonate was.
A mixture of 82.49 g of aluminum ( Picture = 26.98 g/mol) and 117.65 g of oxygen ( Picture = 32.00 g/mol) is allowed to react. What mass of aluminum oxide ( Picture = 101.96 g/mol) can be formed?
Find the pH of the equivalence point and the volume (mL) of 0.0740 M KOH needed to reach the equivalence point in the titration
1.0994 g lithium sulfate dissolved in 50 mL water b. 10.3 mg lithium sulfate dissolved in 0.50 mL water c. 0.2575 g lithium sulfate dissolved in 12.5 mL water d. 5.497 g lithium sulfate dissolved in 2.5 L water
When adjusted for any changes in delta h and delta S with temperature, the standard free energy change delta G at 500K is equal to 9.8x10 4 J/mol.
The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick.
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