What is the enthalpy change per mole of base
In an acid-base neutralization reaction between 100.0 mL of 0.5 M nitric acid (HNO3) and 100.0 mL of 0.5 M potassium hydroxide (KOH), qrxn was found to be -5000 J. what is the enthalpy change per mole of base ?
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A 1900 kg car traveling to the right at 22 m/s is chasing a second car of the same mass that is traveling to the right at 10 m/s. What fraction of the initial kinetic energy of the cars is lost during this collision?
What are the ethical challenges presented by pre-implantation genetic screening (PGS) and Savior Siblings? How would PGS be interpreted under the various philosophical theories we've discussed?
It has been suggested that rotating cylinders about 8 mi long and 6.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acc
A 230 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. The total energy of the system is 1.00 J. Find the force constant of the spring.
An observer is traveling at 0.49 times the speed of sound. What is the observed frequency if the observer moves toward the source?
Do you agree or disagree that a sovereign state should be accountable to a world body that is not elected but appointed? At the same time, do you agree or disagree that international institutions do require some authority to be effective espe
Select a change that you have witnessed in an organization with which you are affiliated. (If necessary, choose a change that you heard about even if you didn't experience it personally.), describe the change.
A motorist is traveling at 12 m/s when he sees a deer in the road 43 m ahead. If the maximum negative acceleration of the vehicle is -7 m/s/s, what is the maximum reaction time (delta)t of the motorist that will allow him to avoid hitting the dee
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