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a test rubber stopper is used to close the tops of test tubes and flasks.
It's like a cork to close off narrow-mouthed things like bottles, test tubes and flasks, except it's made of rubber and not cork.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoThe method most commonly used to find the mass of objects is by weighing them. Mass, of course, is not weight. But the weight is proportional to the mass, and if you find the weight, you can deduce the mass. What's more, a spring balances (which technically measures weight) is usually callibrated in mass units (for example, kilograms), under the assumption of standard Earth gravity.
Wiki User
∙ 11y agoIt's like a cork to close off narrow-mouthed things like bottles, test tubes and flasks, except it's made of rubber and not cork.
Wiki User
∙ 13y agoA rubber stopper has a mass of 14 grams and a volume of 7 cm3. To solve for density, take mass divided by volume. 14g / 7 cm3 = 2 g/cm3.
Wiki User
∙ 14y ago14/7 = 2 g/cm3
Wiki User
∙ 14y agothe mass of a stopper is 71 grams.
Wiki User
∙ 12y agoLxWxH
Wiki User
∙ 11y ago13.8 grams, dawg.
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When magnesium reacts quickly with hydrochloric acis to produce hydrogen gas in a glass tube with a rubber stopper why would the rubber stopper burst of?
rubber stopper burst up because it has strong afinity with hydrogen
What is the use of beaker cover?
A beaker cover is called a rubber stopper or metal stopper(depends on what the stopper is made of).
What is the hole in the rubber stopper for?
To let air go thru
Why are the tubes sealed with rubber stopper rather than left open?
To avoid loss of substances.
What are the laboratory apparatus of rubber plug?
The main reason for a rubber stopper is to stop gas or liquid from coming out of the container. Rubber stoppers can also prevent contamination of samples by keeping the laboratory glassware safe.
Where can you buy a rubber stopper?
You can buy an rubber stopper at widget-co.com. They are not that expansive ethier
When magnesium reacts quickly with hydrochloric acis to produce hydrogen gas in a glass tube with a rubber stopper why would the rubber stopper burst of?
rubber stopper burst up because it has strong afinity with hydrogen
Would a rubber stopper float in water?
i don't know... That's why I'm asking you. soo.. Does a rubber stopper float in water?
When a rubber stopper has a mass of 8.46g was immersed in a graduated cylinder containing 25 ml of water the water rose to 30.9 ml Calculate the densityof the rubber stopper?
Since the difference in volume corresponds to the volume of the stopper, the volume of the stopper=30.9-25=5.9ml Thus density of the rubber stopper=mass/vol=(8.46/5.9)g/ml
Why is it important to touch a charged object to the metal rod of an electroscope and not to the rubber stopper?
it is important because if you don't and touch the rubber stopper it will not show if it is positive.
What is the average life expectancy of a rubber stopper?
This is very variable and depends on: - type of rubber - temperature - pressure on the stopper - the liquid in contact - other conditions of use
What is the use of rubber stopper in laboratory apparatus?
pantakip.
What is the use of rubber stopper's laboratory apparatus?
pantakip.
What is the use of beaker cover?
A beaker cover is called a rubber stopper or metal stopper(depends on what the stopper is made of).
How do you replace rubber brake stopper on a 2001 Nissan Xterra?
remove the pedal arm pin so that you can freely move the pedal and have an access to the rubber stopper slots.
Why must KClO3-MnO2 mixture be kept away from the rubber stopper?
KCIO3-MNO2 cannot comes in contact with the rubber stopper otherwise, or a severe explosion may result.
Why must KClO3-MnO2 mixture be kept away from rubber stopper?
KCIO3-MNO2 cannot comes in contact with the rubber stopper otherwise, or a severe explosion may result.
