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Molar mass of copper?
To obtain one mole of copper atoms (6.02 x 1023 atoms), weigh out 63.55 g copper. The molar mass (M) of a substance is the mass of one mole of entities (atoms, molecules, or formula units) of the substance. Molar mass has units of grams per mole (g/mol).For More Detail63.546 grams of Copper in 1 mole of Copper(63.546g/mol) * (1mole/6.022*10^23) = 1.055*19^-22Another way (But for the Copper 35 iostope):1 atom of copper has 29 protons and 35 neutrons29 protons * 1.00728 amu/proton = 29.21112 amu35 neutrons * 1.00867 amu/neutron = 35.30345 amu29.21112 + 35.30345 = 64.51457 amu total(64.51457 amu) * (1 gram/6.02*10^23 amu) = 1.07167*10^-22 grams in one copper-35 atom
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.
What is the mass in grams for 3.011 X 10 23 atoms F?
1 mole of any element is its atomic weight (from the periodic table) in grams.1 mole of atoms of an element is 6.022 x 1023 atoms (Avogadro's number).1 mole F = 18.9984032g F1 mole F = 6.022 x 1023 atoms FConvert atoms of F to moles F.3.011 x 1023 atoms F x (1mole F/6.022 x 1023 atoms F) = 0.5000 mole FConvert moles F to g F.0.5000 mole F x (18.9984032g F/1mole F) = 9.499g Fe
Which has the greatest number of atoms- 45 grams of Mg 45 grams of F 45 grams of P or 45 grams of Na?
In order to figure out how many atoms are in each sample, you would take 45, multiply it by 6.02 × 1023, and divided by the atomic mass. Since two of the numbers (45 and 6.02 × 1023) will be constants in all of the samples, the number of atoms will differ in each sample due to the atomic mass. 45 × (6.02 × 1023) / atomic mass in grams = number of atoms You could punch out all the numbers to see which sample has the greatest number of atoms, but it is easier to find the atomic mass for all of them and see which one is smaller. A larger atomic mass will mean the equation will be divided by a larger number, meaning the number of atoms will be smaller. So the smallest atomic mass would yield more atoms.Atomic masses:Mg- 24.3 grams***F- 38.0 gramsP- 31.0 gramsNa- 23.0 grams***Note that fluorine is a diatomic moleculeThe sample of 45 g of sodium (Na) would contain the greatest number of atoms
What is the mass in milligrams of 4.11x1019 calcium atoms?
HI!So, as there are 6.02x1023 atoms in a mole, and you have 4.11x1019 calcium atoms, that's4.11x1019 /6.02x1023, which gives you 0.000068272 moles of calcium. Calcium has a Relative Atomic Mass (a.k.a. Mass Number) of ~40.RAM x number of moles = Mass (grams)Therefore 40 x0.000068272 = 0.00273088 gramsAs there are 1000milligrams in 1 gram, that's0.00273088 grams x 1000, which is 2.73088mg.I hope this helps!
Molar mass of copper?
To obtain one mole of copper atoms (6.02 x 1023 atoms), weigh out 63.55 g copper. The molar mass (M) of a substance is the mass of one mole of entities (atoms, molecules, or formula units) of the substance. Molar mass has units of grams per mole (g/mol).For More Detail63.546 grams of Copper in 1 mole of Copper(63.546g/mol) * (1mole/6.022*10^23) = 1.055*19^-22Another way (But for the Copper 35 iostope):1 atom of copper has 29 protons and 35 neutrons29 protons * 1.00728 amu/proton = 29.21112 amu35 neutrons * 1.00867 amu/neutron = 35.30345 amu29.21112 + 35.30345 = 64.51457 amu total(64.51457 amu) * (1 gram/6.02*10^23 amu) = 1.07167*10^-22 grams in one copper-35 atom
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.
What is the in grams of one fluorine atom?
The mass in grams of one fluorine atom is 18.998 grams per mole. Fluorine is a gas that has the atomic number of 9.
What is the mass of a sample of sodium that contains 2980 atoms?
Not much! 2980 atoms sodium [1 mole Na/6.022 X 1023 (atoms)][22.99 grams/1 mole Na] = 1.138 X 10 -19 grams sodium ====================
What is the mass in grams for 3.011 X 10 23 atoms F?
1 mole of any element is its atomic weight (from the periodic table) in grams.1 mole of atoms of an element is 6.022 x 1023 atoms (Avogadro's number).1 mole F = 18.9984032g F1 mole F = 6.022 x 1023 atoms FConvert atoms of F to moles F.3.011 x 1023 atoms F x (1mole F/6.022 x 1023 atoms F) = 0.5000 mole FConvert moles F to g F.0.5000 mole F x (18.9984032g F/1mole F) = 9.499g Fe
Which has the greatest number of atoms- 45 grams of Mg 45 grams of F 45 grams of P or 45 grams of Na?
In order to figure out how many atoms are in each sample, you would take 45, multiply it by 6.02 × 1023, and divided by the atomic mass. Since two of the numbers (45 and 6.02 × 1023) will be constants in all of the samples, the number of atoms will differ in each sample due to the atomic mass. 45 × (6.02 × 1023) / atomic mass in grams = number of atoms You could punch out all the numbers to see which sample has the greatest number of atoms, but it is easier to find the atomic mass for all of them and see which one is smaller. A larger atomic mass will mean the equation will be divided by a larger number, meaning the number of atoms will be smaller. So the smallest atomic mass would yield more atoms.Atomic masses:Mg- 24.3 grams***F- 38.0 gramsP- 31.0 gramsNa- 23.0 grams***Note that fluorine is a diatomic moleculeThe sample of 45 g of sodium (Na) would contain the greatest number of atoms
How many pounds are in 19 grams of mass?
0.04189 pounds to 19g
What is the mass in milligrams of 4.11x1019 calcium atoms?
HI!So, as there are 6.02x1023 atoms in a mole, and you have 4.11x1019 calcium atoms, that's4.11x1019 /6.02x1023, which gives you 0.000068272 moles of calcium. Calcium has a Relative Atomic Mass (a.k.a. Mass Number) of ~40.RAM x number of moles = Mass (grams)Therefore 40 x0.000068272 = 0.00273088 gramsAs there are 1000milligrams in 1 gram, that's0.00273088 grams x 1000, which is 2.73088mg.I hope this helps!
How many moles of carbon dioxide are there in 19 grams of carbon dioxide?
To calculate the number of moles of carbon dioxide in 19 grams, divide the given mass by the molar mass of carbon dioxide, which is approximately 44 grams/mol. Therefore, 19 grams of carbon dioxide is equal to 19/44 ≈ 0.43 moles.
If you have 85.5 grams of fluorine which has a molar mass approxidmatley 19 g mol how many moles of fluorine do you have?
To calculate the number of moles of fluorine, divide the given mass (85.5 grams) by the molar mass of fluorine (19 g/mol). Number of moles of fluorine = 85.5 g / 19 g/mol ≈ 4.5 moles.
How many moles in 5.67 grams of fluorine gas?
To find the number of moles in 5.67 grams of fluorine gas, you need to divide the mass by the molar mass of fluorine. The molar mass of fluorine is approximately 19 g/mol. Therefore, 5.67 grams of fluorine gas is equal to 5.67 g / 19 g/mol ≈ 0.298 mol.
How many grams of f are in 165 caf2 grams of?
To find the grams of F in 165 g of CaF2, you need to consider the molar mass of CaF2. Calcium (Ca) has a molar mass of about 40.1 g/mol, and fluorine (F) has a molar mass of about 19 g/mol. So, the molar mass of CaF2 is about 40.1 + (19 x 2) = 78.1 g/mol. Then, you can calculate the grams of F in 165 g of CaF2 by determining the proportion of F in the compound CaF2 compared to its total molar mass.
