Use the henderson-hasselbalch equation and your knowledge of ionization to you answer this question. aspirin is a weak acid with a pka of 3.5 that is absorbed more effectively in the stomach than the small intestine. the ph of your stomach is around 1.5 and the ph of your small intestine is approximately 6.0. is aspirin absorbed more readily when it is protonated or deprotonated? what is the approximate ratio of conjugate base to acid when it is absorbed more readily?

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

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