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The density of the rock is its mass divided by its volume (in suitable units). Since a millilitre is the same volume as a cubic centimetre,

density = 127 grams / 32.1 cm3 = 3.956 g/cm3

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Q: A rock has a mass of 127grams and displaces 32.1 mL of water What is the density of the rock?
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What is the density of titanium if it displaces 0.314 L of water and has a mass of 1.41 kg?

If the titanium in bicycle frame displaces 0.314 L of water and has a mass of 1.41 kg, the density of the titanium in gcm-3 or gram per cubic centimeter is approximately 4.49. This is based on the formula that density is equivalent to mass divided by volume.


What is the density of an object that has a mass of 550 grams and displaces 25 mL of water?

550/25 = 22 grams per cc


Why does vetcable oil float on water?

Vegetable oil floats on water because it is less dense than water. Density is the mass of a substance divided by its volume. Since the mass of vegetable oil is less than the same volume of water, it displaces less water and floats on top.


Find the density of water?

Measure out a specific volume of water, such as 100mL. Determine the mass of that volume of water. Density = mass/volume, so divide the mass by the volume, and you will have the density.


What will happen to the water level if someone was sitting in a boat floating on a very small pond and then he take the anchor out of the boat and drop it into the water?

Assuming that you and the anchor are both in the boat and floating on the sea, the level of water would go down once you throw the anchor into the water. The logic behind this follows from two facts which, if not known, would make it almost impossible to answer this question. When an object floats on a liquid (let's say water), it displaces water equal to its own weight. Also if an object is submerged in water, it displaces water equal to its own volume. Therefore, as the anchor is extremely heavy, it displaces a great deal of water when it is floating on the boat, but when you drop it into the water (because its volume is quite small), it displaces less water (or fluid) and so the level of water would rise a lot less compared to its fall, which would be greater. Now you may be wondering how I can make the assumption that the volume is small. Well, you have to assess the density of the substance. Density = mass/volume; the anchor has a high density, and water has a lower density. Lets assume, for all intents and purposes, that the density of water is 1 and that of the anchor is 2. So the anchor has a greater mass than the water per unit of volume: 1=y/x 2=2y/x It also has a smaller volume per unit of mass relative to water, of course. 1=y/x 2=y/0.5x (y=x=1) So relative to the water, you can say that the anchor has a greater mass than it does volume, and so it displaces more water in the boat than in the water.

Related questions

How do you find mass of a rock by its density?

Determine its volume by how much water it displaces, then divide mass by volume


What is the density of an objects whose mass is 200 grams and displaces 250ml of water?

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What is the density of titanium if it displaces 0.314 L of water and has a mass of 1.41 kg?

If the titanium in bicycle frame displaces 0.314 L of water and has a mass of 1.41 kg, the density of the titanium in gcm-3 or gram per cubic centimeter is approximately 4.49. This is based on the formula that density is equivalent to mass divided by volume.


If a sample of iron with a density of 7.874 gcm3 displaces 76.0 mL of water when placed in a beaker what is its mass?

The mass of iron is 598,4 g.


How does the density of an object affect it as it sinks through water?

It's difficult to tell what you are asking. If the question is concerned with the bouyancy of the object, it will sink if it first displaces its volume of water, or will float if it first displaces its weight in water. Since density is mass per unit volume, objects with an average density greater than water will sink.


What is the density of an object that has a mass of 550 grams and displaces 25 mL of water?

550/25 = 22 grams per cc


How does density affect buoyancy?

Ignoring shapes (using cubes), density (mass/volume) greater than "water" means it sinks. The floating object displaces its weight of the buoyant "object" (water, etc.)when it floats, but displaces its volume when it sinks.


How much water does a 1 pound fish displace?

It displaces 1 pound of water in terms of its mass, if you were to convert to volume, it is a simple conversion with any mass, water has a density of 1 meaning that 1kg of water takes up 1 litre of volume, so, a 1 pound fish roughly displaces 455mL of water.


Does polypropelene float?

The density of polypropylene is almost the same as water. Remember that for an object to float it must have a density lower than that of the fluid in which it is being floated. Polypropylene density is slightly less than water but like any other material it can be made to float by molding it into a shape that displaces water eg a boat is made of steel which is more dense than water but it displaces a large mass of water.


A 0.8 kg object displaces 500 mL of water. What is its specific gravity?

the specific gravity is how the density of the object compares to the density of water. Water's density is 1gram per milliliter. We just need to figure out the density of the object. The object is .8 kg and it displaces 500mL of water, so the density is the mass divided by the volume. Since the density of water is given in grams, we have to convert the objects mass from kg to g and then we can get the density. .8kg * 1000g/kg = 800 grams so, 800g/500ml = 1.6grams/mL this is the density. So divide the density of your object by the density of water, which is 1g/mL, you get 1.6 as the specific gravity. This means the object is 1.6 times more dense than water.


A 0.8 kg object displaces 500 ml of water What is its specific gravity?

the specific gravity is how the density of the object compares to the density of water. Water's density is 1gram per milliliter. We just need to figure out the density of the object. The object is .8 kg and it displaces 500mL of water, so the density is the mass divided by the volume. Since the density of water is given in grams, we have to convert the objects mass from kg to g and then we can get the density. .8kg * 1000g/kg = 800 grams so, 800g/500ml = 1.6grams/mL this is the density. So divide the density of your object by the density of water, which is 1g/mL, you get 1.6 as the specific gravity. This means the object is 1.6 times more dense than water.


What is the density of an object that displaces 15.0ml and has a mass of 42.5g?

2.833 grams per millilitre.