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a particular gas exerts a pressure of 785 mmHg. what is this pressure in units of Atmospheres
a balloon has a volume of 1.20 L at 24 degrees C. the balloon is heated to 48 degrees C. calculate the new volume of the balloon.
Consider the following exothermic reaction: C2H4 (g) + Cl2 (g) C2H4Cl2 (g) If you were a chemist trying to maximize the amount of C2H4Cl2 produced, which of the following might you try?
Draw a diagram showing the hydrogen bonding of an ammonia molecule with two other ammonia molecules. (Draw complete Lewis structures.
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL
The process is mechanically irreversible, requiring 20% more work than the mechanically reversible compression and the sorroundings consist of a heat reservoir at 27 degrees C?
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
how many years would it take for a 10-gram sample of U-238 to decrease to 2.5 grams?
Enough of a monoprotic acid is dissolved in water to produce a 0.0194 M solution. The pH of the resulting solution is 6.26. Calculate the Ka for the acid.
The mean velocities of HCl gas and NH3 gas at 25 degrees Celsius are 450m/s and 660m/s respectively. With these speeds in mind, briefly explain why so much time was required
Calculate the mass of urea that should be dissolved in 187 g of water at 35C to produce a solution with vapor pressure of 37.7 mmHg
what is the concentration of a household ammonia cleaning solution if 49.90 ml of .5900M HCL is required to neutralize 25.00 ml of the solution?
What constant current (in amperes) is required to produce aluminum by the Hall-Heroult
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