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How many copper atoms are in a pure copper statue with a mass of 129 kg?
Wiki User
∙ 8y ago
The atomic weight of copper is 63.546 grams per mole. 129 kg is equal to 129000 grams. So there are 2030.03 moles of copper. There are 6.022 x 10^23 copper atoms in a mole. So there are 12.22 x 10^26 atoms.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoApprox 1.22*10^27.
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What is the average atomic mass of copper-65?
Copper is a meta element. Atomic mass of it is 64.
What element has a atomic mass of 64.546?
copper
The copper cube had a mass of 2.7g and the volume of the copper cube is 1cm to the 3rd power?
this means that copper is 2.7g/cm3
Avogadros number of phosphorus P atoms would have a mass of?
By saying Avogadro's number of atoms, you are saying one mole (or 6.02 × 1023 atoms). And one mole of any elements is its atomic mass. Phosphorus' atomic mass is 31.0 grams
When calculating an atoms approximate mass how is the mass of electrons figured?
electrons are the same as protons
How many atoms of copper equal a mass of 127.10 g?
1.20 × 1024 atoms
How many copper atoms are in a pure copper statue with a mass of 133 kg?
A lot! 154 kg copper (1000 grams/1 kg)(1 mole Cu/63.55 grams)(6.022 X 1023/1 mole Cu) = 1.46 X 1027 atoms of copper ---------------------------------------
A sample of copper with a mass of 63.5 g contains 6.02x1023 atoms calculate the mass of the single copper?
17.48 atoms
Why does a mole of copper atoms weigh less than a mole of lead atoms?
Because copper has a smaller molar mass, hence it will have less mass per mole than lead.
How do you convert 2.11x10 to the 24 atoms of copper to mass in grams?
2.11x10^24 atoms... Divide by Avogadro's Constant (6.02x10^23 particles/mole) Gives you moles of copper... Multiply by the molar mass of copper. (?? g/mol) Gives you grams of copper...
How many grams of copper atoms are needed to supply the same number of atoms as does 235 grams of iron?
The number of atoms in a given mass of metal may be calculated by dividing the mass by the gram atomic mass, then multiplying by Avogadro's Number. The gram atomic masses of iron and copper are 55.847 and 63.546 respectively. Since Avogadro's Number is constant, the required mass m of copper atoms can be found from the equation m/63.546 = 235/63.546, or m = 235 X (63.456/55.847), or 267 grams of copper, to the justified number of significant digits.
How many copper atoms does it contain The volume of a sphere is 43pieR3 and the density of copper is 8.96 gcm3 A pure copper sphere has a radius 0.936 in?
Use your volume formula and your radius to find volume. Next use the equation d=m/v or m=dv to find your mass of copper. Use your mass, atomic weight of copper, and avagadro's number to figure out your atoms.
How many atoms are there in a 1cm cube of copper?
Find the mass of 1 cm3 of copper.density= mass / volumemass= density * volume (density is about 8.96 g cm-3)mass= 8.96 g cm-3 * 1 cm3 = 8.96 gno. of moles = mass / Molar mass =8.96 g / 63.5 g mol-1 = 0.14 molno. of copper atoms in 1 cm3 of copper= 0.14 mol * 6.022 *1023 =8.4 * 1022 atoms
What mass of copper contains the same number of atoms as 68.7 g of iron?
63.55g or 63.55 grams
How many atoms are in a 1cm of copper wire and who calculate this?
We need to know the diameter of the wire to calculate the volume and the mass. Number of atoms is: 2,58.1023.r2, where r is the radius of the wire.
How many dozens of copper atoms in a penny?
A US 1 cent piece prior to 1982 was made of copper and had a mass of about 3.1g. This is about 0.049 moles of copper, or around 2.9 x 1022 atoms. More recent pennies are mostly zinc (97.5%) and have a mass of about 2.5g. This works out to around 2.2 x 1022 zinc atoms and 5.9 x 1020 copper atoms, so overall around 2.3 x 1022 atoms.
How many atoms are present in a piece of sterlingsilver jewelry weighing 33.14?
How many atoms are present in a piece of sterlingsilver jewelry weighing 33.14 ? (Sterling silver is a silver-copper alloy containing 92.5% by mass.)
