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3 methyl-amine and ethane have similar molar masses explain why the boiling point of methyl-amine is -6 degrees while that of ethane is -89degrees?
3-methyl amine, aka methyl amine, conatins N-H bonds (polar covalent bonds). Ethane contains only C-H bonds (non-polar covalent bonds). Since the N-H bonds are polar and Nitrogen being more electronegative (ability to attract electrons), it has a slighly negative charge by pulling the elecrons from the hydrogen it is bonded to, giving the Hydrogen a slighly positive charge. The positive H's of one molecule will be attracted to the negative N's of another molecule. This is the force that 'holds' the molecules close to each other. This is why it takes more kinetic energy (temperature) to convert it to a gas than ethane, which essentially has no charge and subsequently very little attraction to other ethane molecules.
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Explain why a distillation would not separate a mixture of the miscible liquids formic acid which boils at 100.7 degrees celsius and water which boils at 100 degrees celsius?
This is because their boiling points are close. Distillation is used to separate mixtures in which their constituents have boiling points that are relatively far apart. A better method would be fractional distillation which can be used to separate mixtures in which their constituents have relatively close boiling points.
Explain why a solution has a lower boiling point than the pure solvent?
When a solute is added to a solvent, the vapor pressure of the solution decreases compared to the pure solvent. This means the solution needs less energy to overcome atmospheric pressure and boil. As a result, the boiling point of the solution is lower than that of the pure solvent.
How is water's polarity connected to its boiling point, and can you explain this relationship?
Water's polarity is connected to its boiling point through the hydrogen bonds that form between water molecules. The polarity of water molecules allows them to attract each other, forming hydrogen bonds. These bonds require energy to break, which is why water has a relatively high boiling point compared to other substances of similar size. The more hydrogen bonds present, the higher the boiling point of the substance.
Explain why could distillation be used to separate air into oxygen nitrogen carbon dioxide argon and so forth?
Each constituent of air has its specific boiling point temperature, so that liquid air can be separated into its constituents by distillation in the same manner as any mixture of two or more liquids with different boiling points.
A liquid sample contains hexane and octane whose boiling points are79.0 celsius and 136 celsius respectively what method would be used to separate the two components explain?
Distillation would be the method used to separate hexane and octane from the liquid sample. This process takes advantage of the difference in boiling points between the two components to vaporize and then condense each one separately. The lower boiling point component (hexane) will vaporize first, allowing it to be collected and separated from the higher boiling point component (octane).
Explain why the water surrounding volcanic vents at the bottom of the ocean can rise to 350 degree without boiling?
How do you know that it is not boiling? 350 degrees is 350 degrees. It is going to burn you. If you microwave a cup of water for more than 2 minutes, it will not be boiling. It can explode and scald you if you drop a spoon in the hyper heated cup.
Is it possible to boil water at room temperature of 20 degree celsius without heating it explain?
Yes it is possible. Boiling takes place when the saturated vapour pressure becomes equal to the surrounding pressure. So by reducing pressure over the surface of liquid even at 20 deg celsius it is possible to boil.
What kind of experiment would explain separation of salt water solution?
evaporation or boiling!!!
Explain how the factors can be used to work out what fraction of a full turn is 40 degrees?
explain how the fractions can be used to work out what frction of a full turn iss 40 degrees
Explain what the measure of an angle is?
the measure of an angle is the degrees of an angle.
Explain why mercury will need the most energy to boil?
Because it has the highest boiling point. -sorry if it is wrong-
Explain why a distillation would not separate a mixture of the miscible liquids formic acid which boils at 100.7 degrees celsius and water which boils at 100 degrees celsius?
This is because their boiling points are close. Distillation is used to separate mixtures in which their constituents have boiling points that are relatively far apart. A better method would be fractional distillation which can be used to separate mixtures in which their constituents have relatively close boiling points.
Explain how liquids reach a point where they boil?
They 'reach' it by heating up the liquid till boiling point is reached.
Explain why an ice cube melts?
Because it is not 0 degrees Celsius outside!
If boiling water was poured into a china cup and a foam cup which cup would feel hotter explain?
china cup
Is it posseble for a city to be located at 120 degrees south 30 degrees west explain?
No, it is not possible, as lines of latitude are only up to 90 degrees N or S of the Equator.
How do you explain that a square is a rhombus?
If all angles aren't 90 degrees, then it's a rhombus.If all angles are 90 degrees, then it's a square.
