What your tutor wants here is to find out is if, from the information given, you can determine the nature of the metal.
Which you should be able to do. You should first determine the specific gravity, the weight in grams per cubic centimetre.
And then explore the metals you know of to find one with similar density.
158 / 20 = 7.9 g/cc. (Or since there are 1000 000 cc in a m3, multiply by 1 000 000.) which gives us 7.9000 tonnes/cubic metre.
In a list of density of the elements, iron comes in at 7.87 tonnes per m3.
Which for the present purposes looks a good candidate.
The density of the unknown metal is 7.9 g/mL. This is calculated by dividing the mass (158g) by the volume (20mL).
The density of the object is calculated by dividing its mass by its volume. In this case, the density would be 4000g / 20ml = 200 g/ml.
It is 0.87 g/mL.
The density of the metal is 200 grams per 18 cubic centimeters, or 200/18 grams per cubic centimeter or 11.11 grams per cubic centimeter. We can also write our answer as 11.11 g/cc or 11.11 g/cm3 or 11.11 g-cm-3 depending on how we wish it to look. All these things say the same thing. To find the density of a material when we have a given mass and volume, we must find the mass per one unit of volume. This means dividing the volume units into the mass uints to generate that mass per one unit of volume figure. It is the mass per one unit of volume that is the density of a material.
The metal block will displace a volume of water equal to its own volume. By measuring the volume of water displaced, you can then determine the mass of the metal block - as long as you know the density of water (1 gram per cubic centimeter).
The density of the unknown metal is 7.9 g/mL. This is calculated by dividing the mass (158g) by the volume (20mL).
The mass of 40 grams is 40 grams and the volume of 20mL is, wait for it, ... 20 mL!
The density of the object is calculated by dividing its mass by its volume. In this case, the density would be 4000g / 20ml = 200 g/ml.
It is 0.87 g/mL.
The molar mass of ice is 18.015 g/mol. To find the number of moles in 158g of ice, divide the mass by the molar mass: 158g / 18.015 g/mol = 8.77 moles.
This well known formula should lead you on your path: Density (grams/ml) = mass/volume
A sample of an unknown metal has a mass of 35.4g and a volume of 3.11cm^3. The metal is Lead.
density = mass / volume = 52 / 20 = 2.5 g cm-3 Note the units used. Density is commonly measured in grams per cubic centimeter. However using millilitres does not affect the answer since 1 ml = 1 cm3
The density of the metal is 200 grams per 18 cubic centimeters, or 200/18 grams per cubic centimeter or 11.11 grams per cubic centimeter. We can also write our answer as 11.11 g/cc or 11.11 g/cm3 or 11.11 g-cm-3 depending on how we wish it to look. All these things say the same thing. To find the density of a material when we have a given mass and volume, we must find the mass per one unit of volume. This means dividing the volume units into the mass uints to generate that mass per one unit of volume figure. It is the mass per one unit of volume that is the density of a material.
Anything that has mass and volume is matter. Metals have mass and volume, therefore they are matter.
Volume = mass/volume = 500g/10cm3 = 50g/cm3
Density is the mass of the object divided by its volume. By this principle, to determine the density of a metal, place the metal onto a scale to measure its mass. After this, place the metal into a beaker of water and measure the volume change in the beaker. Divide the mass by the volume and you get the density.