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Calculate the amount of energy required (in joules) to heat 2.5 kg of water from 18.5oC to 55.0oC.
How much heat is required to raise the temperature of a mole of oxygen from 298 to 3000 K at constant pressure
how long it will take the same ammount of gaseous I2 to effuse from the same container under identical conditions.
25.00 mL of 0.1000 M chlorous acid, HOCl = O is titrated with 0.1000 M NaOH. Calculate the pH of the solutions when 0.00, 2.00 and 24.00 mL of the titrant was added.
Calculate the pH of this solution. B) A 150 mL of 0.15 M NH3 is slowly added to 25 mL of 02 M HCl. What is the pH of the resulting solution
Nevertheless, in order to prevent tooth decay, F - ions are added to drinking water at a concentration of 1 mg of F - ion per L of water. How many kilograms of sodium fluoride would be needed to treat a 7.11 107 gal reservoir
The pressure on 250 mL of octane gas is decreased from 103 kPa to 94.0 kPa, with temperature remaining constant. What is the resulting volume of octane?
If 2.5 mL of seawater contains about .0000000000058 moles of gold (Au), how many atoms of gold are in that volume of seawater
A 20% by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/ml at 20 C. What is the molarity of this solution?
In each of the following acid-base reactions, identify the bronsted acid and base on the left, and their conjugate partners on the right. (a) CH3CO2H(aq) + C5H5N(aq)= [CH3CO2]-(aq) + C5H5NH+(aq)
The heat energy required to melt 1.00 g of ice at 0 degrees C is 333J. If one ice cube has a mass of 62.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of ice cubes to form liquid water at 0 degrees C
Explain the importance of possessing a working knowledge of statistics as a special educator. If you do not understand statistics
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