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Copper has a density of 8.9 gcm3 How many grams of copper make up a sheet of copper that is 30.0 cm 20.0 cm 0.10 cm?
To find the mass of the copper sheet, calculate the volume first: 30.0 cm * 20.0 cm * 0.10 cm = 60.0 cm^3. Then, multiply the volume by the density to get the mass: 60.0 cm^3 * 8.9 g/cm^3 = 534 grams of copper.
Crystalline silicon has a cubic structure The unit cell edge length is 543 pm The density of the solid is 2.33 gcm3 Calculate the number of Si atoms in one unit cell?
Density = Mass / VolumeSilicon has a molar mass of 28.09gDensity = 2.33g/cm^3Volume = (543pm)^3 = (543 x10^-10 cm)^3 = 1.60x10^-22 cm^3Mass = x net atoms * (1 mol/6.022x10^23) * (28.09g/mol) = x *(4.665x10^-23g)(2.33g/cm^3)(1.60x10^-22 cm^3) = (4.665x10^-23g)*x(3.73x10^-22g) / (4.665x10^-23g) = 7.996The net number of atoms in Silicon is 8. This particular form of crystallization is known as the diamond cubic crystal structure.
Oxygen gas grams per cm3?
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
Frank has a sample of steel that weighs 80 grams. If the density of his sample of steel is 8 gcm3 what is the sample and volume?
Its is 10 cm³ hun
The density of water is equal to 1.0 gcm3. A substance with density equal to 2.1 gcm3 would in water.?
A substance with density equal to 2.1 gcm3 it's sinking in water.
The density of water is equal to 1.0 gcm3. A substance with density equal to 0.9 gcm3 would in water.?
float
The density of water is equal to 1.0 gcm3. A substance with density equal to 1.3 gcm3 would in water.?
sink
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.
Nickel has a density of 9.8 gcm3 lead has a density of 11.3 gcm3 if both samples have a volume of 4 cm3 what are the masses of each?
The mass of the nickel sample is 39.2 g (9.8 g/cm3 * 4 cm3), and the mass of the lead sample is 45.2 g (11.3 g/cm3 * 4 cm3).
Density of chalk by gcm3?
about 1.1
The density of water is equal to 1.0 gcm3 A substance with density equal to 1.3 gcm3 wouldin water?
A substance with a density of 1.3gcm-3 would sink in water. Float (APEX)
What is the density of gallium if aluminium has a density of 2.70 gcm3 and Boron has a density of 2.08 gcm3?
The density of gallium is between 2.08 g/cm³ and 2.70 g/cm³ since gallium is located between boron and aluminum in the periodic table.
A droplet of pure mercury has a density of 13.6 gcm3. What is the density of a sample of pure mercury that is 10 times as large as the droplet?
The density of a sample of pure mercury that is 10 times as large as a droplet will remain the same at 13.6 g/cm3. Density is an intrinsic property of a substance that does not change with the amount of the substance.
What is the mass of this sulfur (Density of sulfur 2.07 gcm3.)?
To find the mass of the sulfur, we need the volume of the sulfur sample. If we have the volume, we can multiply it by the density of sulfur to calculate the mass. Without the volume of the sulfur sample, we cannot determine its mass.
Suppose a symmetrical metal rod of the element lead has a density of 11.4 gcm3. If this rod is cut in half the density of each piece is now 5.7 gcm3.?
The density is an intensive property; the density of lead remain unchanged in every piece of lead from this rod.
