hi so what you need to do is use a couple of formulas. basically what you need to know is that the volume of one mole of any gas is 22.4 L/mol. And from that we know the atomic weight of oxygen is basically 16 amu and there for there is 16g/mol of oxygen. Since oxygen as a gas is O2 then we need to multiply this weight by two, so there are 32 g/mol in oxygen gas. Because 1 mole of oxygen gas takes up 22.4L (at Standard Temp and Pressure 0oC and 101.3kPa, but this shouldn't make a difference) we can create two equations to find the mass of O2 first at 1L and then at 1cm3 (which is 1mL). To get to 1L we can set up an equation like this:
22.4L=1mol=32g so we need to divide our L by something to make it 1. We divide the entire equation by 22.4. this comes to
1L=0.03125mol=1.428571429g. Now we need to convert all of this to mL or cm3, they are the same thing. We know there are 1000 mL in a liter, so we divide by 1000.
(1000mL [1L]=32g)/(1000)
=0.032g per 1mL of O2.
I hope this is right :) if you have any more questions you can email me
Density of oxygen is 1.429 (g/cm3)
The mass of 2.000 mol of oxygen atoms is 32.00 grams.
Denser than water. The density of Lithium is approxiametely 0.534g/cm3.
Calcium density: 1,55 g/cm3 at room temperature.
The density of sulfur in grams/cm3 is 2.070. (not at twenty five degrees Celsius)
Multiply the density (gm cm3) by the volume of the cube (cm3).
The density of the object is 3 grams per cm3. This is calculated by dividing the mass (30 grams) by the volume (10 cm3).
Density is grams per cm3. 615/105 = 5.86 g/cm3
1 Litre = 1000 cm3 and 1 kilogram = 1000 grams So 0.768 gms per cm3 = 0.768 kilograms per Litre. Then mass of 155211 L = 155 211 * 0.768 = 119 202.048 kilograms. 0.768 grams per cm3
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It is not a manadatory rule; but the density of gas exprimed in g/cm3 has a numeric value too small.
Two grams per cm3 = 2,000 kg per m3
four moles. Approximately. Oxygen has a molecular weight of 16.0 grams per mole so 64 grams divided by 16.0 grams per mole is four moles.
(178)/20.5 = 8.6829 grams per cm3
Density = Mass/Volume = 21g/2cm3 = 10.5 grams per cm3
At standard temperature and pressure, one mole of gas takes up 22.4 liters. So the amount of gas necessary to occupy 2 liters is:2 L ÷ 22.4 mole/L = 0.08929 molesOne mole of oxygen gas (O2) weighs 32 grams per mole, so:0.08929 moles * 32 g/mole = 2.857 grams of O2The density of liquid oxygen is 1.141 g/cm³, and so the volume is:2.857 grams ÷ 1.141 g/cm3 = 2.50 cm3 = 2.50 mLIn other words, oxygen expands by a factor of 800 going from liquid to gas!See the Related Questions link to the left for more information on solving Ideal Gas Law problems of this type.
The destiny of all matter on earth is to be "blown away" when the sun becomes a red giant in around 5 billion years' time. As to the density, 2.02 grams per 500 cm3 = 4.04 grams per 1000 cm3 = 4.04 grams per 1000 ml or 4.04 g per litre.