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In the subsequent experiment, a coffee-cup calorimeter containing 100. Of is used. The preliminary temperature of the calorimeter is 23.0. If 5.50 of is added to the calorimeter, define what will be the final temperature of the solution in the calorimeter?
Define the heat of solution, of is.
Define the specific heat of water is
Consider the bonding and bond order in H2 +, H2, He2 +, and He2 to explain the bondlengths of 106 pm, 74 pm, 108 pm, ~6000 pm, respectively.
A system expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work (w) if the expansion occurs against a constant pressure of 5.00 atm.
What is the average mass(in grams) of a flourine atom if Flourine has an atomic weight of 18.998 amu
the epa limit for lead in the water supply is 15 parts per billion by mass. calculate the number of lead ions present
How many grams of water can be cooled from 34°C to 26°C by the evaporation of 81 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g·K.)
a 12-liter tank contains helium gas pressurized to 160 atm. what size tank would be needed to contain thi same amount
a 45-year-old woman is receiving a combined modality treatment for the initial stage of breast cancer. state the two
Suppose we have a flask with a movable piston in which pressure is kept constant at 1.00atm. If an 8.00gram sample of solid ammonium nitrate is introduced into the flask what is the volume of the flask in liters at 298K when the ammonium nitrate h..
Using structures and your own words, explain why acetic acid (CH3COOH; you can look up the structure of the carboxylic acid if you're unsure) is more acidic than ethanol (CH3CH2OH)
sketch the full schematic for the voltic cell corresponding to the redox reaction shown below;Fe(s) +Cu^2+(aq)---->Cu(s)+Fe^2+(aq). write the shorthand notation for the voltic cell corresponding to the above redox reaction.
What is the pH of a dilute 0.00336 M solution of formic acid? Formic acid is monoprotic with a Ka of 1.70 x 10-4. You should use the quadratic equation for this one because the solution is very dilute.
When 35.0 g of an unknown nonelectrolyte is dissolved in 220.0 g of benzene, the solution boils at 83.2°C. Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
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