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If you have a mixture of two substances one with a higer density than the other how could you separate the substances in the mixture?
Density is defined as mass per unit volume of a fluid. Therefore, if you compare the same volume of two fluids, the one with higher mass is more dense.
Experimentally, you could take (say 5 mL) of each fluid and weigh each on a mass scale. The the one that weighs more is more dense.
you can also...
~put the liquids in beakers (same amount in both)
~get a marble
~drop the marble in one of the beakers
~use a timer to time how long it takes the marble to reach the bottom of the beaker.
~take the marble out or if you have another marble use that one for the next fluid
~drop the marble into the second fluid
~time how long it takes to reach the bottom
~the fluid with the less time should be the one that is denser
( you don't have to use marbles, you can use any other two object that are and weight the same).
What else can I help you with?
How do properties help us identify substances?
If you wish to separate the constituents of a mixture, knowledge of the properties the constituent substances will help you figure out how to go about separating them. If you have any property (solubility in water, for example) that applies to at least one of you substances, and doesn't to another, you can use the property to separate them. If you wish to separate a solution, knowing the solubility curves of each solute will allow you to separate by changing the temperature. For example, Potassium nitrate has a much higher solubility in water than sodium chloride at high temperatures, but at or near zero degrees Celsius, it has much less. So, if you had a solution of sodium chloride and potassium nitrate, you could lower the temperature drastically and most of the potassium nitrate will precipitate. This is but one example. If you have a solid mixture, and a certain number of the substances in it will dissolve in water (or any other solvent), washing the mixture with the solvent will dissolve those, leaving everything else behind (you could filter the solvent out to separate the substances which don't dissolve) If your substances are physically different in size, you could pass the mixture through a sieve (for example, to separate sand and gravel). If one of your substances is magnetic, but others aren't, you could use a magnet to separate them.
If you have a mixture of gravel and sand and salt and iron fillings what properties of these substances could you use to separate the mixture and how would you use those properties?
You could use a magnet to separate the iron fillings from the mixture, as iron is magnetic while the other substances are not. Next, you could use water to dissolve the salt, allowing you to separate it from the sand and gravel mixture. Finally, you could use a sieve to separate the remaining sand and gravel mixture based on particle size.
What mixture could you separate using a sifter?
A sifter can be used to separate a mixture of powdered substances based on particle size. Larger particles will be retained in the sifter while smaller particles will pass through, allowing for effective separation.
If you have a mixture made of two substances one with a higher density than the other how could you separate the substances in a mixture?
Winnowing. Run the powder through a sifting grid, and allow it to fall into a box below. Set up a fan to blow sideways. The dense particles are more likely to fall into the box, while the less-dense particles are more likely to be blown off to the side. You will probably need several iterations of this.
What is a substance that has a mass of 45 kg and a volume of 43 m3?
There is no element or common compound with a density of 45kg/m3 = 1.047 kg/m3. But it could be a mixture of two or more substances: at least one of which has a higher density and at least one has a lower density.
A mixture of fine sand and water could be separated by?
Using a centrifuge to separate by density.
How do you separate soluble and insoluble substances from the same mixture?
One common method is to use filtration to separate insoluble substances from soluble substances. The mixture is passed through a filter that catches the insoluble substances, while allowing the soluble substances to pass through. Another method could be to use techniques such as centrifugation or precipitation to separate the insoluble substances from the soluble ones in the mixture.
How do properties help us identify substances?
If you wish to separate the constituents of a mixture, knowledge of the properties the constituent substances will help you figure out how to go about separating them. If you have any property (solubility in water, for example) that applies to at least one of you substances, and doesn't to another, you can use the property to separate them. If you wish to separate a solution, knowing the solubility curves of each solute will allow you to separate by changing the temperature. For example, Potassium nitrate has a much higher solubility in water than sodium chloride at high temperatures, but at or near zero degrees Celsius, it has much less. So, if you had a solution of sodium chloride and potassium nitrate, you could lower the temperature drastically and most of the potassium nitrate will precipitate. This is but one example. If you have a solid mixture, and a certain number of the substances in it will dissolve in water (or any other solvent), washing the mixture with the solvent will dissolve those, leaving everything else behind (you could filter the solvent out to separate the substances which don't dissolve) If your substances are physically different in size, you could pass the mixture through a sieve (for example, to separate sand and gravel). If one of your substances is magnetic, but others aren't, you could use a magnet to separate them.
If you have a mixture of gravel and sand and salt and iron fillings what properties of these substances could you use to separate the mixture and how would you use those properties?
You could use a magnet to separate the iron fillings from the mixture, as iron is magnetic while the other substances are not. Next, you could use water to dissolve the salt, allowing you to separate it from the sand and gravel mixture. Finally, you could use a sieve to separate the remaining sand and gravel mixture based on particle size.
What physical properties would help you distinguish between a pure substance and a mixture?
If you wish to separate the constituents of a mixture, knowledge of the properties the constituent substances will help you figure out how to go about separating them. If you have any property (solubility in water, for example) that applies to at least one of you substances, and doesn't to another, you can use the property to separate them. If you wish to separate a solution, knowing the solubility curves of each solute will allow you to separate by changing the temperature. For example, Potassium nitrate has a much higher solubility in water than sodium chloride at high temperatures, but at or near zero degrees Celsius, it has much less. So, if you had a solution of sodium chloride and potassium nitrate, you could lower the temperature drastically and most of the potassium nitrate will precipitate. This is but one example. If you have a solid mixture, and a certain number of the substances in it will dissolve in water (or any other solvent), washing the mixture with the solvent will dissolve those, leaving everything else behind (you could filter the solvent out to separate the substances which don't dissolve) If your substances are physically different in size, you could pass the mixture through a sieve (for example, to separate sand and gravel). If one of your substances is magnetic, but others aren't, you could use a magnet to separate them.
What mixture could you separate using a sifter?
A sifter can be used to separate a mixture of powdered substances based on particle size. Larger particles will be retained in the sifter while smaller particles will pass through, allowing for effective separation.
If you made a mixture of iron fillings and salt how could you separate that mixture into its 2 original substances?
Place the mixture in water. You recover the iron once the salt dissolves. Then allow the water salt mixture to dry and allow salt crystals to reform.
How can you separate substances of different densities?
Density Column to Separate Mixtures of SolidsYou could use a density column to separate mixtures of different solids by adding substances that have different densities. Then you would add in the solids, which would land or stop at a substance.
If you have a mixture made of two substances one with a higher density than the other. how could you separate the substances in the mixture?
Winnowing. Run the powder through a sifting grid, and allow it to fall into a box below. Set up a fan to blow sideways. The dense particles are more likely to fall into the box, while the less-dense particles are more likely to be blown off to the side. You will probably need several iterations of this.
If you have a mixture made of two substances one with a higher density than the other how could you separate the substances in the mixture?
Winnowing. Run the powder through a sifting grid, and allow it to fall into a box below. Set up a fan to blow sideways. The dense particles are more likely to fall into the box, while the less-dense particles are more likely to be blown off to the side. You will probably need several iterations of this.
If you have a mixture made of two substances one with a higher density than the other how could you separate the substances in a mixture?
Winnowing. Run the powder through a sifting grid, and allow it to fall into a box below. Set up a fan to blow sideways. The dense particles are more likely to fall into the box, while the less-dense particles are more likely to be blown off to the side. You will probably need several iterations of this.
How could you separate the components of homogeneous mixture to the components of heterogeneous mixture?
you can answer that by your mind. you can separate it by using a wire WIREGAUSE.
