[eaglesfn68]

ok so it goes this is my first post.

I need to find out drops of water from a pipet will it take to have 5.0g of water.

I dont have the equipment to do this so i dont know if i can just have the answer or not. thanks for any help

[eaglesfn68]

one more question. the process i used for finding density was measuring an amount of water, puting a solid in the water, measuring the change in volume and calculating density.

the question is why wont this work for all solids?

[Yggdrasil]

I think 20 drops of water ~1mL, but I don't know how accurate this is.  For your second question, what happens if the solid disolves in water (like salt)?

[sjb]

I think 20 drops of water ~1mL, but I don't know how accurate this is.

I guess it depends on the size of the pipette, wider gauges will naturally have larger volumes and so less drops per fixed volume. That said, 20 drops to a millilitre sounds about right for 8 inch pasteur (disposable) glass pipettes.

S