To calculate the concentration of silver ions in the simulation, you need to convert the number of dissolved ions into moles. then divide this number of moles by the volume in liters.
how would the concentration of silver ions compare in a 1.0 x 10-16 l saturated solution to a 1.5 x 10-16 l saturated solution? write a hypothesis first, and then test your hypothesis using the simulation. to simulate a saturated solution, put in enough silver bromide that you can clearly see that it stops dissolving. calculate the concentrations of silver ions at both of these volumes.

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. 

The correct answer is weight.