Want this question answered?
Use a graduated cylinder and the water displacement method. Pour the sample of water in the graduated cylinder and find its meniscus. That is its volume.
Graduated cylinder
A graduated cylinder measures liquid volume. The word "graduated" means it's marked off in units, usually milliliters (mL). Because the cylinder is graduated more finely than most beakers or flasks, the graduated cylinder is the best way to accurately measure liquid volume in science. Beakers and flasks can give you a rough measurement, but graduated cylinders are the way to go if you really want to be accurate.
"http://wiki.answers.com/Q/Which_piece_of_equipment_can_best_measure_the_volume_of_ink_in_a_pen" graduated cylinder
graduated cylinder and water
graduated cylinder
Beakers are for very short term storage of chemicals. They are graduated, but not accurately, so they are impractical for meaningful measurements. A beaker's graduations are estimates at best; to be accurate, use a graduated cylinder for measuring liquid volume.
The best way to find a volume of anything(that doesn't dissolve or get damage by water) is by simply filling a graduated cylinder with water(amount doesnt matter)then dipping the object in water and calculating the difference. (FOR EXAMPLE: I can fill a graduated cylinder up to 100 ml. Then i will dip the expo marker in it. And let's say for example that it rises by 50 ml. Then the volume is 50 milliliters.)
the best and most accurate way would be to find a container that measures volume accurately (a graduated cylinder would work well) and fill it with a known amount of water(say, 10 mL). Then count out a number of rice grains (20 or 30 would be enough) and drop them into the the cylinder with the water. Tap the cylinder to make sure there are no bubbles attached to the rice grains, and then record the total volume or the rice and the water (or where the water is up to on the cylinder). If you subtract the volume of the water (the first measurement) from the volume of the rice+water (the second measurment) you will get the volume of the rice. Divide by the number of grains, and you'll have the average volume of a grain of rice.if you want to find the volume of a particular grain of rice, then you can do the same process with just one grain of rice, but you will need something that measures volume much more accurately than a graduated cylinder
It depends on the amount you want to take. If it is microlitres, you can use a micropipette, millilitres, a pipette (a burette would be more accurate), and if greater than that, it is best to use a large graduated cylinder. A graduated cylinder is more inaccurate than a pipette, but at volumes of 500ml for example, it is impractical to use a pipette.
use a graduated cylinder with the lowest capacity (greater than 26ml) if extreme accuracy is needed, (as I suspect with the small amount stated) I might use a scale, measuring by weight instead of volume (dropper may be needed to add to weight needed).... but you must adjust weight according to specific gravity or the only accurate liquid measured by 25.3 grams weight would be WATER :P
To accurately measure 12.6 mL of liquid ethanol, it would be best to use a graduated cylinder or a syringe with a volume capacity of at least 15 mL. These instruments are designed to measure liquid volumes with higher precision compared to other common household measuring tools like cups or spoons.