Fire-crackers generate a sound level
When two fire-crackers generate a sound level of 95 dB if fired simultaneously at a certain place, then what will be the sound level when only one is exploded?
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Determine the delta E for this reaction? Suppose the reaction goes to completion. If 3 moles of H2 react with 3 moles of Cl2 to form HCl, determine the work done (in joules) against a pressure of 1.0 atm at the 25 degree C.
A gas-filled balloon having a volume of 3.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere, where the pressure and temperature are 3.00 x10-3 atm, -23°C respectively. Determine the final volume of the balloo
An aqueous stock solution ("S") which is having 8.657 mg of gallium (Ga) per mL of solution is diluted in the following manner. A 3.00 mL aliquot of this solution is added to a 150.00 mL volumetric flask.
Assume that quality control at an aspirin manufacturing plant fell down on the job and left some aspirin tablets to be sold that contained salicylic acid, explain what might happen to persons who ingested these tablets as a result? Discuss
The half-life of H2O2 at 298 K was found to be 0.41 s, while that at 1000 K was 0.07 s. estimates the Arrhenius activation energy
A seismographic station obtains S and P waves from an earthquake, separated in time by 15.8 second. Suppose that the waves have traveled over the similar path at speeds of 4.50 km/s and 8.20 km/s. Determine the distance from the seismograph to the
How can identify the substance oxidized and the substance reduced? Find out the oxidizing agent and the reducing agent.
If two identical ions are apart by a distance r = 6.2 Å, the repulsive electric force which each applies on the other is 5.40 x 10-9 N. Determine how many electrons were eliminated from the neutral atom to form each and every ion?
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