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Is the density of rubber stopper is denser than the density of water?
No, the density of a rubber stopper is less than the density of water. Rubber has a lower density compared to water, so a rubber stopper would float on 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?
The volume of the stopper can be calculated by subtracting the initial volume of the water from the final volume. In this case, the volume of the rubber stopper would be 30.9 ml - 25 ml = 5.9 ml. Now, divide the mass of the rubber stopper (8.46 g) by its volume (5.9 ml) to find its density. Density = Mass/Volume, so the density of the rubber stopper would be 8.46g / 5.9ml = 1.43 g/ml.
What is the purpose of wetting the glass tubing before inserting into a stopper?
Wetting the glass tubing before inserting it into a stopper helps create a better seal by reducing the risk of air pockets. The water acts as a lubricant, making it easier to insert the glass tube into the stopper without damaging either component.
What is the correct method of removing a glass stopper?
To remove a glass stopper, start by gently tapping the sides with a rubber mallet to loosen it. Then, carefully twist the stopper while pulling it upwards to remove it from the bottle. If the stopper is still stuck, try using hot water to expand the glass before attempting to remove it again.
How does the density of rubber stopper compare to the density of water?
The density of a rubber stopper is typically less than the density of water, which is 1 g/cm³. Rubber stoppers usually have a density ranging from 0.9-1.1 g/cm³, making them less dense than water and able to float on its surface.
What is the density of a glass stopper that weighed two comma four newtons in air two newtons in water with a density of one thousand?
The buoyant force acting on the glass stopper in water is 0.4 N (2.4 N - 2 N). The buoyant force is equal to the weight of the water displaced by the stopper, so the volume of water displaced is 0.4 kg (0.4 N / 1000 N/kg). Using the formula density = mass/volume, the density of the glass stopper is 2400 kg/m^3 (2.4 kg / 0.001 m^3).
What is the density of a glass stopper that has a mass of 16.8 g and has a volume of 7.60 cm3?
Density = mass/volume so the density of the stopper is 16.8/7.6 = 2.21 g/cm3.
Is the density of rubber stopper is denser than the density of water?
No, the density of a rubber stopper is less than the density of water. Rubber has a lower density compared to water, so a rubber stopper would float on water.
How get glass stopper out of a glass bottle?
Grease the top of the bottle!
What equation can be used to find the density of glass?
The equation to find the density of a material is density = mass/volume. To find the density of glass, you would need to measure the mass of a sample of glass and divide it by the volume of the sample. The density of glass can vary depending on the type of glass.
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?
The volume of the stopper can be calculated by subtracting the initial volume of the water from the final volume. In this case, the volume of the rubber stopper would be 30.9 ml - 25 ml = 5.9 ml. Now, divide the mass of the rubber stopper (8.46 g) by its volume (5.9 ml) to find its density. Density = Mass/Volume, so the density of the rubber stopper would be 8.46g / 5.9ml = 1.43 g/ml.
What are the reasons for the using glass-stopper bottles for acids and plastic stoppered bottles for bases?
If strong bases are present in the glass-stopper bottles, they may react with the glass and etch it or change the concentration of the base. Hence plastic-stopper bottles are used for bases.
What is the purpose of wetting the glass tubing before inserting into a stopper?
Wetting the glass tubing before inserting it into a stopper helps create a better seal by reducing the risk of air pockets. The water acts as a lubricant, making it easier to insert the glass tube into the stopper without damaging either component.
What is the correct method of removing a glass stopper?
To remove a glass stopper, start by gently tapping the sides with a rubber mallet to loosen it. Then, carefully twist the stopper while pulling it upwards to remove it from the bottle. If the stopper is still stuck, try using hot water to expand the glass before attempting to remove it again.
Why is it not advisable to use a ground glass stopper for a reagent bottle containing sodium hydroxide solution?
Over time, the sodium hydroxide will react with the smidges of carbon dioxide in air to produce sodium carbonate, the white, crusty powder that you find around the rim of plastic capped stock bottles (for example). This powder will either prevent the ground glass stopper from sealing properly and exposing the contents to more air, or will in fact cement the ground glass stopper in the bottle, and make it impossible to remove.
How can I open an antique glass kitchen container with a stuck glass stopper?
Run warm to hot water over the neck of the container. This will expand the neck and the stopper should come out.
How does the density of rubber stopper compare to the density of water?
The density of a rubber stopper is typically less than the density of water, which is 1 g/cm³. Rubber stoppers usually have a density ranging from 0.9-1.1 g/cm³, making them less dense than water and able to float on its surface.
