In which of the following aqueous solutions would you expect agcl to have the greatest solubility? why?

a) 0.015m nacl

b) 0.020m kcl

c) 0.020m bacl₂

d) 0.020m agno₃

e) pure water

E) pure water.

Explanation:

AgCl is a sparingly soluble salt in water which is dissociates according to the reaction:

AgCl ⇄ Ag⁺ + Cl⁻.

Adding NaCl, KCl, BaCl₂, and AgNO₃ will shift the equilibrium to the left according to Le Chatelier's principle that the presence of these salts will increase the concentration of Cl⁻ (NaCl, KCl, BaCl₂) or increase the concentration of Ag⁺ (AgNO₃), so the reaction is shifted towards the reactants side decreasing the solubility of AgCl.

So, the greatest solubility of AgCl will be in pure water.

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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