How many grams is equal to one cup
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How many grams is equal to one cup

[From: ] [author: ] [Date: 11-11-12] [Hit: ]
How many grams of motor oil will fit in one cup?How many grams of sawdust will fit in one cup?.To start with there are 240 ml in a cup. That part was easy, as they are both measures of volume.......
Hello,

I need to know how many grams of motor oil and sawdust can fit in to one cup.

Yes I am aware that a cup is a measure of volume and grams are a measure of weigh

How many grams of motor oil will fit in one cup?
How many grams of sawdust will fit in one cup?

Please help
Thanks :D

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That's a difficult question as you are confusing mass (weight) with volume
.
To start with there are 240 ml in a cup. That part was easy, as they are both measures of volume. The challenge is going to be to relate volume to weight of substances without a definite specific gravity or density.

A fundamental formula used in science is d=m/v, where

d=density
m = mass
v = volume

The density of water is 1 g/cc or 1 g/ml. So that means that 240 g of water would fill one cup, or 240 ml. Motor oil has a density of about 0.8 g/cc, so it would take only 192 g of oil to fill a cup.

Sawdust, like most powdered substances such as gravel and soil, have a variable density that is difficult to measure. I am guessing the bulk density of sawdust would be about 0.2 g/cc, increasing with compaction. At 0.2 g/cc, it would take 48 g of sawdust to fill a cup.

Now the next challenge will arise because the sawdust has voids that will allow oil to fill those voids without changing the volume. If you filled a cup with the 48 g of sawdust, then I bet you could add perhaps 50 or even 100 ml (40 or 8 mg) of oil and the volume wouldn't change.
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