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How many chromium atoms would have to be lined up to span 1.0 mm if chromium is about 1.9 Å?
Wiki User
∙ 12y ago
An angstrom = 1 X 10^-10 meters
1.0 mm = 0.001 meters
so,
1.9 * 1 X 10^-10 = 1.9 X 10^-10 meter per chromium
so
0.001 meters ( 1 meter/1.9 X 10^-10)
= 5263158 atoms of chromium
------------------------------------------
( 5.3 X 10^6 atoms )
Wiki User
∙ 12y ago
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How many chromium atoms would have to be lined up to Span 1.0cm if the diameter is 2.2 A?
One Angstrom is defined as 10-10 centimeters. Therefore, the number of any units with a diameter of 2.2 Angstroms that would be required to span 1.0 cm is 1.0/10 -10 or 4.5 X 109 calcium atoms., to the justifiable number of significant digits.
How many chromium atoms and how many oxygen atoms are indicated on the right side of this balanced chemical equation 4 Crs 3 O2g 2 Cr2O3g?
2(2+3)=10 atoms 4 chromium atoms and 6 oxygen atoms
How many atoms are there in one molecule of Cr(NO3)3?
Chromium(III) nitrate is not made of molecules. It is ionic. There are 4 ions in one formula of chromium(III) nitrate.
How many Cr atoms are in 147.4 kg of chromium?
A lot! 147.4 kg Cr (1000g/1kg )(1mol Cr/52.00g )(6.022 X 10^23/1mol Cr ) = 1.707 X 10^ 27 atoms of Chromium
How many moles of hydrogen are need to convert 5 moles of chromium oxide?
A mole of any substance has 6.022 x 1023 particles(atoms, molecules or ions) of that substance. So 5 moles of chromium would have 6.022 x 1023 x 5 atoms = 30.11 x 1023 atoms.
How many chromium atoms would have to be lined up to Span 1.0cm if the diameter is 2.2 A?
One Angstrom is defined as 10-10 centimeters. Therefore, the number of any units with a diameter of 2.2 Angstroms that would be required to span 1.0 cm is 1.0/10 -10 or 4.5 X 109 calcium atoms., to the justifiable number of significant digits.
How many chromium atoms and how many oxygen atoms are indicated on the right side of this balanced chemical equation 4 Crs 3 O2g 2 Cr2O3g?
2(2+3)=10 atoms 4 chromium atoms and 6 oxygen atoms
How many atoms are there in one molecule of Cr(NO3)3?
Chromium(III) nitrate is not made of molecules. It is ionic. There are 4 ions in one formula of chromium(III) nitrate.
How many atoms are presents in 3 moles of chromium?
1.8x10*24
How many atoms are in 8.25 mole of chromium?
1 mole = 6.022e23 atoms 8.25 mole = 4.96815 e 24 atoms
How many Cr atoms are in 147.6 kg of chromium?
Quite a few! 147.6 kg chromium (1000 grams/1 kg)(1 mole Cr/52.00 grams)(6.022 X 1023/1 mole Cr) = 1.709 X 1027 atoms of chromium =========================
How many atoms are in sample of chromium with a mass of 13 grams?
Take the actual sample weight of 13grams, and divide it by the atomic weight of chromium. This gives you your molar percentage of atoms. Now multiply this molar percentage by Avogadro's constant, the number of atoms in one mole, and this will give you your number of atoms in the sample.
How many Cr atoms are in 147.4 kg of chromium?
A lot! 147.4 kg Cr (1000g/1kg )(1mol Cr/52.00g )(6.022 X 10^23/1mol Cr ) = 1.707 X 10^ 27 atoms of Chromium
How many atoms or molecules are in K2Cr2O7?
11 atoms, 2 oatssium, 2 chromium, 7 oxygen. No molecules as such. 2 K+ and the polyatomic anion Cr2O72-.
How many electrons are in Cr-52?
There are 24 protons in Chromium (including Chromium54) of any isotope. Isotopes are just elements with different numbers of neutrons. If it is called chromium it has 24 protons. The atomic number of an element is the same as the number of protons.
How many copper atoms would you have to line up side by side to form a line a meter long?
1,000,000,000 atoms lined up side by side will equal 1 meter * * * * * I disagree. The diameter of a copper atom is approx 250 picometres = 2.5*10-10 metres. You would therefore require 4 billion atoms.
How many copper atoms would you have to line up side by side to form a line 1 meter long?
1,000,000,000 atoms lined up side by side will equal 1 meter * * * * * I disagree. The diameter of a copper atom is approx 250 picometres = 2.5*10-10 metres. You would therefore require 4 billion atoms.
