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A sample of helium gas occupies 120 mL at 71 mmHg. For a gas sample at constant temperature, determine the volume of helium at 45 mmHg. Show your work
the wall of a spherical tank of 1-m diameter contains an exothermic chemical reaction and is at 200oc when the ambient
The salt BX, when dissolved in water, produces an alkaline solution. Which of the following could be true. Acid HX is a weak acid and BOH is a weak base.
What is the number of milligrams of Ag+ that is not precipitated? Also, if the AgCl precipitate is washed with 200.00 mL of water, what is the maximum number of milligrams of AgCl that could be lost
The tube is located in a fume hood operating at 25 degrees C and 1atm. What flow rate of air must be entering the hood so that the hydrogen gas does not pose a flammability hazard
What systematic factors in the experience itself may lead to an answer that is not exactely correct.( Do not include student errors such as 'I forgot to set the balance to 0",etc.We assume the student is a perfect experimenter and errors result on..
relationship between the volume of water and dripping time
Suppose 532 mL of neon gas at 20C and 1.04 atmospheres and 376 mL of SF6 gas at 20C and 0.97 atmospheres are put into a 275-mL flask. If the temperature remains constant, calculate the partial pressure, in atmospheres, of the SF6 gas in the mixtur..
It was a cold winter night with temperatures dropping in the low 30s. The homeowner was using a salamander kerosene heater, which was common for that time, to stay warm.
The amount of energy needed to heat 2.00 g of carbon from 50.0 C to 80.0 C is 42.6 J. what is the specific heat capacity of this sample of carbon.
What are the restrictions on free rotation?free rotation : N-Cα-C
Question- The boiling point of a substance is defines as the temperature at which liquid and vapor coexist in equilibrium.
A hydrogen atom initially in the n=7 quantum state emits a photon having a wavelength of 2.16495E-6 m. What is the quantum number of the final state of the atom?
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