Question

A student wanted to make a toy for his little sister. The toy would have colorful liquid and solid items inside and would look pretty when you shake it. He had some little plastic stars and leaves. His plan was to put the stars and leaves in a jar and fill it with liquid. When you shake the jar, everything swirls around together. Then the stars slowly float to the surface, and the leaves settle to the bottom. The student mixed up 500 mL of salt solution. He weighed it and found its mass to be 585 g. Will his shake-up toy work the way he wants it to if he uses this salt solution? Why or why not?Remember, 1 mL = 1 cm3. Show your math.

Answer 1

please post an answer in the comments.

Answer 2

What's the concrentration of the salt solution. What is the density of the salt solution? What is the density of the stars and leaves? Is that 585 g just the mass of the salt solution or does that include the weight of the jar? Is the salt NaCl or some other salt? I don't think the question can be answered with the information submitted. Probably the stars will float since most plastics will. If the stars float I suspect the leaves will too if they are made of the same plastic. What you need to know is the density of the plastic pieces and the density of the salt solution. If the stars and leaves have density less than the liquid they will float. If not they will sink.

Answer 3

[AI-generated answer — Explain Bot]

To determine if the student's shake-up toy will work the way he wants it to using the given salt solution, we need to consider the density of the solution compared to the density of the solid items (plastic stars and leaves).

Density is defined as the mass of an object divided by its volume. In this case, we will need to compare the density of the salt solution to the densities of the plastic stars and leaves.

First, let's calculate the density of the salt solution using the given information:

Density = Mass / Volume

Given: Mass of the salt solution = 585 g
Volume of the salt solution = 500 mL

Since 1 mL is equal to 1 cm³, the volume of the salt solution can also be expressed as 500 cm³.

Thus, the density of the salt solution is:

Density = 585 g / 500 cm³

Now, we can compare this density to the densities of the plastic stars and leaves.

If the density of the salt solution is greater than the densities of the plastic stars and leaves, they will sink to the bottom and the shake-up toy will not work as desired. If the density of the salt solution is less than the densities of the plastic stars and leaves, they will float to the top and the toy will also not work as intended.

Therefore, the student needs to ensure that the density of the salt solution falls between the densities of the plastic stars and leaves.