When substances such as sugar and table salt are dissolved in water, the freezing points of the new solutions are lower than the freezing point of water. Also, the more material dissolved, the lower the freezing point. The boiling points of these solutions, however, are higher than that of water.
Which of the followingsolutions would have the highest boiling point?
1) 5 liters of water
2) 5 grams of salt dissolved in 4 liters of water
3) 10 grams of salt dissolved in 3 liters of water
4) 15 grams of salt dissolved in 2 liters of water
5) 20 grams of salt dissolved in 1 liter of water
i think 3?
From the the data presented, it would suggest that the highest proportion of salt would have the highest boiling point. If you do not have any additional data, do you still want 3?
To determine which solution would have the highest boiling point, we need to understand how the boiling point of a solution is affected by the amount of solute dissolved in it.
The boiling point of a solution is higher than that of pure water because the presence of the solute particles increases the boiling point elevation. The more solute particles dissolved, the greater the boiling point elevation.
Now let's compare the given solutions:
1) 5 liters of water: This is pure water, so it does not contain any solute particles. Therefore, it will have the boiling point of pure water, which is 100 degrees Celsius at sea level.
2) 5 grams of salt dissolved in 4 liters of water: This solution contains 5 grams of salt dissolved in 4 liters of water. The concentration of the salt is 5 grams/4 liters = 1.25 grams/liter.
3) 10 grams of salt dissolved in 3 liters of water: This solution contains 10 grams of salt dissolved in 3 liters of water. The concentration of the salt is 10 grams/3 liters = 3.33 grams/liter.
4) 15 grams of salt dissolved in 2 liters of water: This solution contains 15 grams of salt dissolved in 2 liters of water. The concentration of the salt is 15 grams/2 liters = 7.5 grams/liter.
5) 20 grams of salt dissolved in 1 liter of water: This solution contains 20 grams of salt dissolved in 1 liter of water. The concentration of the salt is 20 grams/1 liter = 20 grams/liter.
Now, based on the information we have learned, we know that the higher the concentration of the solute, the greater the boiling point elevation. Therefore, the solution with the highest concentration of salt will have the highest boiling point.
From the given options, the solution with the highest concentration of salt is option 5) 20 grams of salt dissolved in 1 liter of water. Therefore, this solution will have the highest boiling point among the given options.
So, your answer is correct. Option 5) 20 grams of salt dissolved in 1 liter of water has the highest boiling point.