Solid silver acetate is slowly added to 175 mL of a 0.0407 M potassium phosphate solution. The concentration of silver ion required to just initiate precipitation is Solid sodium hydroxide is slowly added to 50.0 mL of a 0.0328 M chromium(III) acetate solution. The concentration of hydroxide ion required to just initiate precipitation is
Solid barium nitrate is slowly added to 150 mL of a 0.0566 M ammonium fluoride solution. The concentration of barium ion required to just initiate precipitation is

If you explain it more through i will answer it : )

The answer would be

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.