0
A 20.0 mL sample of a salt solution that has a mass of 24.0 g What is the density of the solution?
Wiki User
∙ 14y ago
density = mass/volume. (g/cm^3)
So here it is simple 24g/20ml = 1.2 g ml-1
That's it. But check your units. g cm-3 is generally used in chemistry...and luckily cm-3 = ml-1. But if your volume is in litres or weight is in kgs, just be careful with your units.
A fun side-note is that water is more or less 1g cm-3 in density. So 20ml of water = 20g. Here you have 24g, so you know 4grams of salt was added.
This IS an approximation, though. There are many subtle effects you would consider in much higher education.
-------------------------------------------------
density is in g/ml or g/cc. And, the easiest way to do these problems is to just make the units match (with something that seems logical).
You are given 20 ml & 24 g.
So you simply divide the two.
24g/20ml = 1.2 g/ml
Check your work... Does this make sense. You said it is a "salt solution" which we would expect a moderate increase in density over 1, so this seems plausible.
Wiki User
∙ 14y ago
Khat Koang Tang
Wiki User
∙ 14y agoDivide Mass/Volume.
24/16=1.5 g/cm3
Add your answer:
Earn +20 pts
Why egg floats in concentrated salt water?
Egg floats only when the density of the salt solution is almost equal to the density of the egg.The density is made equal by making the salt solution saturaed i.e by adding more salt so that the net mass increases and thus increasing the density. Thus by displacing a small amount of water,the egg floats
What is the percentage by mass of salt solution prepared by dissolving 11 grams of salt in 80 grams of solution with solution?
The percent concentration is 13,75 %.
What is the percentage by mass of salt solution prepared by dissolving 11 grams of salt in 80 grams of solution?
13,75 % NaCl
If a bag of 3 percent salt water is placed into a bucket of 0.3 percent salt water then the solution in the bucket is what compared to the solution in the bag?
The salt solution in the bucket is 10% of the salt solution in the bag. The bagged solution has a higher density than the bucket solution; therefore, the bagged solution will most likely fall to the bottom of the bucket as the bucket water is displaced above it -- assuming there is no air in the bag, the density of the bag material is negligible, and the salt is fully dissolved in the water. Details: = The solution in the bucket is 0.3% while the solution is the bag is 3%. Thus, the solution in the bucket has less concentration of salt than the solution in the bag. Hence, the solution in the bucket is hypotonic to the solution in the bag.
How could you predicd if a block of plastic will float in water?
The block of plastic must be less dense than the water in which it will be placed in order to float. Density is equal to mass over volume (D=m/v), so you could calculate the density of the block of plastic and of a sample of the water by dividing the weight of each sample by the respective volume of each sample. If the density of the plastic is less than the density of the water, it floats! A hint: the maximum density of fresh water occurs at 4 C∘and is equal to 1 gram per 1 milliliter. When a solute - such as salt - is added, the density of water will decrease.
How does dissolving salt in water change the density of the water?
The density increases as the mass of the solution increases but its volume remains the same.
How do you find the density of a salt solution?
Really? Density = mass/(divided by) volume congrats, you just got owned by an 8th grader =)
Will a boiled egg float if you add salt to water?
Yes, it will eventually. When you add salt to water, you are increasing the density of the solution, but not the volume, because the salt dissolves (dissociates). Since density is mass divided by volume, there is a direct relationship between the solution's mass and its density. They increase together even as the volume remains constant. An egg will float in a salt solultion if the molarity is about 2.5 or above.
Why egg floats in concentrated salt water?
Egg floats only when the density of the salt solution is almost equal to the density of the egg.The density is made equal by making the salt solution saturaed i.e by adding more salt so that the net mass increases and thus increasing the density. Thus by displacing a small amount of water,the egg floats
How is the quantity of salt affected when the salt is reclaimed from a salt-and-water solution?
The mass of salt reclaimed should be the same as the mass of salt that was put into the solution.
Explain why an egg sinks in fresh water but floats in a strong solution of salt?
One substance will float on another if its density is less. By adding salt you are increasing the density of the solution. As you add salt, at some point the density of the solution will reach and then exceed the density of the egg
Why does the density of water increase when salt is added to it?
Density = Mass/Volume As salt(mass) increases and the volume remains the same, density also increases.
If the filtrate is a solution how do you obtain a dry sample of the salt dissolved?
Boil the solution and the solvent will get evaporated and you will get the dry salt
determine the mass percent of a 100 mg. salt solution which contains 20g. salt?
Mass solution=100g Mass solution=20g Mass Mass % = (mass Of solute/mass Of solution ) x 100. =(20/100)x100 =1/5 x 100. =100/5 =20%
Does adding salt or sugar to water change the density of water?
the sugar makes the density increase so it changes the density in water
If you dissolve 5 grams of salt in 100 ml of water what is the concentration of the solution in percent?
% of solute by mass = mass of solute/mass of solution *100 =10/110 *100=100/11=9.09%
Can an egg float on salt water and why?
Yes, a raw egg will float if the salt concentration is high enough. This is possible because adding salt creates a solution with a greater density than water. As more salt is added, the density of the solution increases. At a certain point, the density of the solution becomes greater than the density of the raw egg, allowing the egg to float in the solution.*This experiment is a very good demonstration of the principle of buoyancy.
