1 what si the diference between mass and weight?

2 will the following substances float or sink in water at 3.98 degree celcius?

Mass volume float & sink
25g 50ml ?
65g 40ml ?
36g 35ml ?

The purpose of this question is for you to calculate the density of the objects and compare their density to that of water. If less than water the object will float, if more than water the object will sink.

density = mass/volume
You have mass and volume of each. Calculate density. Then look up the density of water at 3.98 degrees C and compare. Post your results if you want us to check them.

thanks ....is it like...

25g 50ml float 0.5
65g 40ml float 1.625
36g 35ml float 1.0285

and ya 1 more question

what is the difference between mass and weight?

http://en.wikipedia.org/wiki/Mass_versus_weight

You calculated the density correctly for all three objects. What did you compare it with to get your three answers of float, float, float?

I'm not entirely sure but I think the main difference is that mass is used in relation to the metric system (metric syst. is used universally in compiling data from scientific findings)and I think weight is used in the customary system.

LOL! All I remember is our Chem teacher telling us "we don't weigh things in here, we mass it"

Ugh....! I HATED chemistry with a passion!!

Mass vs. Weight: Although the terms mass and weight are used almost interchangeably, there is a difference between them. Mass is a measure of the quantity of matter, which is constant all over the universe. Weight is proportional to mass but depends on location in the universe. Weight is the force exerted on a body by gravitational attraction (usually by the earth).

Example: The mass of a man is constant. However the man may weigh: 150 lbs on earth, 25 lbs on the moon (because the force of gravity on the moon is 1/6 that of the earth), and be "weightless" in space.

No copyright violation intended. I do not own any of the above mentioned information. Credit goes to a webpage found on Google.

1. The difference between mass and weight is as follows:

- Mass: Mass refers to the amount of matter contained within an object. It is a measure of the inertia of an object, or how difficult it is to change its state of motion. Mass is scalar, meaning it has magnitude but no direction, and it is typically measured in grams or kilograms.

- Weight: Weight, on the other hand, is the measure of the force of gravity acting on an object. It is the result of the gravitational pull between the object and the Earth (or any other celestial body). Weight is a vector quantity because it has both magnitude and direction. It is typically measured in newtons.

In simple terms, mass remains constant regardless of location, while weight varies depending on the strength of the gravitational force acting upon an object in different locations.

2. To determine whether the substances will float or sink in water at a specific temperature, we need to compare their densities to that of water.

- Density: Density is a measure of how much mass is contained in a given volume of a substance. It is calculated by dividing the mass of an object by its volume. The density of water at a specific temperature is typically known.

To determine whether an object floats or sinks in water, we compare its density to that of water. If the density of the object is greater than the density of water, it will sink. If the density of the object is less than the density of water, it will float.

To solve the given problem, we need to calculate the density for each substance using the provided mass and volume values and then compare it to the density of water at 3.98 degrees Celsius. If the density is greater than water, the substance will sink. If the density is less than water, the substance will float.

Let's calculate the density for each substance and determine float or sink:

Substance 1:
Mass = 25g
Volume = 50ml

Density = Mass / Volume

Substance 2:
Mass = 65g
Volume = 40ml

Density = Mass / Volume

Substance 3:
Mass = 36g
Volume = 35ml

Density = Mass / Volume

Once the densities are calculated for each substance, we can compare them to the density of water at 3.98 degrees Celsius. If the density is greater, the substance will sink. If the density is less, the substance will float.