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When placed in pycnometer 20 g of salt displaces 7.6 g of kerosene. If the mass density of kerosene is .83 gcm3 find the volume and density of the salt.?
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A rock will sink because it is heavier than..?
...the water it displaces. When comparing the weight of the rock to the weight of the water it displaces, the rock is denser and will sink.
Why sodium is not placed in air?
Sodium is not placed in air because it is highly reactive and in the air it reacts with air very violently with the oxygen and burns with explosion. Hence it is always kept inside kerosene
What happens if density of a solid substance is more than liquid it is placed?
If the density of a solid substance is greater than that of the liquid it is placed in, the solid substance will sink to the bottom of the liquid. This occurs because objects with higher density will displace an equal volume of the lower density liquid, causing the solid to sink.
When placed in water ice rises to the top of the liquids. Unlike most solids that sink when placed in their liquids forms ice floats because?
There are microscopic bubbles of air trapped in the ice - making it lighter than the water.
Is it true that floatation separates mixtures based on density?
Yes, floatation can separate mixtures based on density. By adjusting the density of the medium in which the mixture is placed, substances with different densities will either sink or float, enabling their separation.
Why does an object float in water sinks in kerosene oil?
An object floats in water if its density is less than that of water. In kerosene oil, the density is lower than water, so an object with a higher density than kerosene oil will sink in it. Objects float or sink based on their density compared to the liquid they are placed in.
If a sample of iron with a density of 7.874 gcm3 displaces 76.0 mL of water when placed in a beaker what is its mass?
The mass of iron is 598,4 g.
Why do the objects that sink in water float on kerosene?
Objects that are denser than water will sink in water because they displace a volume of water that is equal to their own weight. When placed in kerosene, which is less dense than water, the objects displace a smaller volume of kerosene than their own weight, causing them to float. This is due to the principle of buoyancy, where an object will float if it displaces a fluid with a greater weight than itself.
Why does a cup of nothing float?
A cup placed in water appears to float because it displaces an amount of water equal to its own weight, creating an equilibrium when the weight of the water it displaces matches the weight of the cup. This principle is known as buoyancy.
What will an object do when it is placed in a liquid of greater density?
It could dissolve.Or it could float or sink. Which of the two it does depends on the mass of the liquid that it displaces which, in turn, depends on the shape of the object.
Will something weighing 1kg float in water?
No, 1kg object will sink in water because it is heavier than the water it displaces, causing it to have a greater density than water. Objects float when they have a lower density than the fluid they are placed in.
What is the density of tile in the heat shield of the space shuttle if the tile weighs 150 gram and displaces 75 ml when placed in a beaker full of water?
Mathematically:where:ρ (rho) is the density, m is the mass, V is the volume.ρ = 150/75 = 2 g/mL
What is the meanig of pycnometer?
A pycnometer is a laboratory glassware device used to measure the density of liquids and solids. It typically consists of a small, calibrated bottle with a close-fitting ground glass stopper. By weighing the pycnometer filled with a sample liquid or solid and then empty, the density of the material can be calculated.
What factors determine how heavy an object can be and still float?
The weight (or mass) of an object and the density of the liquid it is placed in are important factors in determining if an object will float. For an object to float, its weight must be less than the weight of the liquid it displaces. This is known as Archimedes' principle. Objects with lower density than the liquid they are placed in will float.
An object most likely sink in water if it has low density?
No, an object with low density will likely float in water because it displaces an amount of water greater than its own weight. Objects with high density are more likely to sink because they displace an amount of water less than their own weight.
What 2 factors determine how heavy an object can be and still float?
The weight of the object must be less than the weight of the water it displaces (buoyancy force). Also, the density of the object must be less than the density of the fluid it is placed in (Archimedes' principle).
What are the three conditions why object float and sink?
Buoyancy force: When the weight of an object is less than the weight of the fluid it displaces, the object will float. Density: An object will sink if its density is greater than the density of the fluid it is placed in. Surface tension: Objects with uneven weight distribution may float or sink based on how surface tension interacts with them.
