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If a chalice made of pure gold weighing 1.47 kg as well as initially at 21 C is filled with 150.0mL of water at 78 C, explain what is the final equilibrium temperature of the system? The heat capacities of water as well as gold are 75.29 and 25.42 J/mol/K respectively.
In which conversion is an oxidizing agent required? a. CH3CH2CH2CH3
A graduated cylinder contains 133 mL of water. A 17.0 g piece of iron (density = 7.86 {g/cm^3}) and a 23.0 g piece of lead are added. What is the new water level in the cylinder?
Determine the molar heat capacity of a solid sample from the observation that transferring the sample with n = 2.45 mol from boiling water (at constant ambient pressure) into 232.0 g of water initially at 25.1ºC raised the water temperature to 33...
What is the effect on the calculated concentration of the standard solution if the trials of the pure KHP samples are consistently over-titrated to a deeper magenta color?
Calculate the pH of the solution that results when 40.0 mL of 0.100 M NH3 is mixed with 20.0 mL of 0.250 M HCl solution.
At constant pressure, it is cooled to 18.00 °C where its final volume is 1.75 L. What was the initial temperature?
acetaminophen a common aspirin substitute has the formula c8h9no2. determine the number of molecules of acetaminophen
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
a mixture containing 80.0 nm iodoacetone designated a and 64.0 nmp-dichlorobenzene designated b gave the relative
In ethanol, with an absorbance of 1.210 (no units) at a wavelength of 530 nm. At this wavelength, the extinction coefficient of rhodamine 6G in EtOH is 116,000M^-1 cm^-1. If I have a 0.100 M solution of rhodamine 6G, what pathlength cell will be n..
A 3.0 L cylinder is heated from an initital temperature of 273 K at a pressure of 105 kPa to a final temperature of 377 K. Assuming th amount of gas and the volume remain the same, what is the pressure (in kilopascals) of the cylinder after being ..
A sample of helium gas initially at 37.0 degrees C, 785 torr and 1.50L was heated to 65.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm.
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