Stopper Water

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Frequently Asked Questions...

Please find Particle density?

Particle Density = Wfs – Wf / {[Wfw - [Wfsw - (Wfs – Wf)]]/ρw}

Wfw = mass of flask, stopper and distilled water (g)
Wf = mass of empty dry flask and stopper (g)
Wfs = mass of flask, stopper and 10-15 g of soil (g)
Wfsw= mass of flask, stopper, water and soil (g)
ρw = density of water = 1 g/cm3

Wfw = 242.70 g
Wf = 115.50 g
Wfs = 124.60 g
Wfsw= 244.37 g
ρw = 1 g/cm3

Best Answer...


tare weight is about being able to subtract the weight of the container, to get the weight of the substance only. assuming you have done so correctly, you can simplify your equation. it will be much clearer to do so.

to find the density of the soil, you need to know both its volume and its mass.
density = mass / volume

however, your question is missing some of the necessary discussion. particularly, it is not clear from above:
* what was the volume of water that was added to the flask with the soil in it?
* what was the volume of the combined soil+water?

also, do you have your brackets right? it's all quite dubious.

mass of soil =
Wfs - Wf = 124.60 g - 115.50 g = 9.1 g

mass of water =
Wfw - Wf = 242.70 g - 115.50 g = 127.2 g