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Instructions: Answer the following questions using the following information: ?Hfusvap =6.02 kJ/mol; ?H= 40.7 kJ/mol; specific heat of water is 4.184 J/g·°C; specific heat of ice is 2.06 J/g·°C; specific heat of water vapor is 2.03 J/g·°C.
1. An ice cube at 0.00 °C with a mass of 8.32 g is placed into 55 g of water, initially at 25 °C. If no heat is lost to the surroundings, what is the final temperature of the entire water sample after all the ice is melted (report your answer to three significant figures)?
Dry ice sublimes at room temp. If 10.0 g of solid dry ice is placed in a 400 mL container, what will be the pressure in the container at 35 degrees C
At 19 °C and 770 torr pressure, what will be the volume of 71 mol of HF gas?
The Occupational Safety and Health Administration has set the limit on the maximum percentage of carbon dioxide (CO2) in air a worker can breathe at 0.500% by mole.
The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
Tungsten crystallizes in a cubic unit cell with an esge length of 3.165 (Angrstroms)and with a tungsten atom on each of the corners of the unit cell and in the center of the unit cell(BCC structure).
Draw a rough sketch of the C NMR of 1,4-di-tertbutyl-2,5-dimethoxybenzene you don't need to be exact, just be sure that the peaks are in the right area and approximately the right height
What volume of a 0.2089 M solution of aqueous potassium iodide will contain enough potassium iodide to react exactly with the copper(II) nitrate in 43.88 mL of a 0.3842 M solution of aqueous copper(II) nitrate
What is chlorphyll a in spinach. What is chlorphyll b in spinach. What is pheophytin a in spinach
Confirm using calculations that the following dilutions will produce 100 ml of 0.025 M acetic acid. Measure out 1.00mL of 17.4 M solution. Dilute this to 50 mL, take 7.2 mL of this solution and dilute it to 100 mL.
A 10.0-mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate are combined with 15.0 g of hydrochloric acid?
Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298K.
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