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What mass of copper contains the same number of atoms as 68.7 g of iron?
Wiki User
∙ 6y ago
63.55g or 63.55 grams
Athena J
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What happen when an iron nail is dipped in copper sulphate solution. why does the colour changes?
The iron is a more active metal than copper, so the iron atoms in the nail replace the copper atoms in the copper sulphate solution, so it becomes iron sulfate. The copper atoms will start to build on the iron nail, as well.
What elements are found in iron oxide atoms?
"Atoms" of the compound iron oxide do not exist, but the compound contains iron and oxygen atoms, both in the form of ions.
How many iron atoms are there in 5.33 moles of fecl3?
The formula shows that there is one atoms of iron in each formula unit of FeCl3, and by definition the number of molecules or formula units in a mole is Avogadro's Number. Therefore, 5.33 moles contains 5.33 X Avogadro's Number of atoms, which is 3.21 X 1024 atoms, to the justified number of significant digits.
When an iron nail rusts what does its mass do?
The iron is reacting with other substances in the surrounding enviornment. This typically changes the iron atoms into molecules of iron oxide. Because the rust contains more atoms, the iron and now oxygen atoms, the mass of the nail increases.
Which contains more atoms 56g of Fe or 16g of S?
There are more atoms of sulfur in 16 grams than there are atoms of iron in 56 grams.
What happen when an iron nail is dipped in copper sulphate solution. why does the colour changes?
The iron is a more active metal than copper, so the iron atoms in the nail replace the copper atoms in the copper sulphate solution, so it becomes iron sulfate. The copper atoms will start to build on the iron nail, as well.
What is the chemical composion of iron?
Iron is an element and contains only atoms with the same number of protons in their nuclei.
Is copper made of iron?
No. Copper and Iron are both elements and are made up of atoms of the pure element.
Atoms of copper and iron?
compare the structure of the atoms of two different elements like cooper and iron
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 do you determine the number of atoms in a coin?
You need to know what elements the coin is made up of (ie. what percent is iron and what percent is copper). You'd then need to weigh the coin out. If you wanted to know how many iron atoms there are, then you'd calculate how much iron there is and convert that to moles and then to atoms using avogadro's number.
Does the number of iron atoms in the reactants equal the number of iron atoms in the products?
no
Iron bromide FeBr2 contains how many iron atoms?
1
What elements are found in iron oxide atoms?
"Atoms" of the compound iron oxide do not exist, but the compound contains iron and oxygen atoms, both in the form of ions.
What two minerals are commercial sources of iron?
The ore which contains both iron and copper is chalcopyrite. Its molecular formula is CuFeS2. Its molecular formula shows that it contains both iron as well as copper.
Each molecule of iron oxide fe2o3 contains how many atoms of iron?
There are two atoms of iron and three atoms of oxygen in the compound Fe2O3. The mass percent of iron is 69.943%
Febr2 contains how many iron atoms?
One.
