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6.25 X 10^20 atoms of lead (1 mole Pb/6.022 X 10^23)(207.2 grams/1 mole Pb)
= 0.215 grams of lead
Wiki User
∙ 13y ago
The molar mass of lead (Pb) is 207.2 g/mol. To find the mass of 6.25x10^20 atoms, you need to divide the number of atoms by Avogadro's number (6.022x10^23) to get the number of moles, then multiply by the molar mass of lead. The mass of 6.25x10^20 atoms of lead is approximately 1.72 grams.
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Why does a mole of copper atoms weigh less than a mole of lead atoms?
A mole of any substance contains Avogadro's number of particles (6.02 x 10^23). The molar mass of copper is less than that of lead, so a mole of copper atoms weighs less than a mole of lead atoms, despite both containing the same number of atoms.
Calculate the number of atoms per cubic meter in lead?
The number of atoms per cubic meter in lead can be calculated based on its density and atomic mass. Lead has a density of 11,343 kg/m^3 and an atomic mass of 207.2 g/mol. Using Avogadro's number, you can calculate that there are approximately 1.03 x 10^29 lead atoms in one cubic meter of lead.
How many moles of atoms are in 1.00 lb of lead?
To find the number of moles of atoms in 1.00 lb of lead, you would first convert the weight to grams (1 lb = 453.592 grams), then divide by the molar mass of lead (207.2 g/mol). This calculation would give you the number of moles of lead atoms in 1 lb of lead, which is approximately 2.19 moles.
The molar mass of a mole of lead?
molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g
What does adding s neutron to an atoms nucleus do to the atoms mass?
Increases it by one mass unit.
What has a greater mass 2 atoms of lead or 5.1 X 10-23 mole of helium?
The weight is greater for 2 atoms of lead.
Why does a mole of copper atoms weigh less than a mole of lead atoms?
A mole of any substance contains Avogadro's number of particles (6.02 x 10^23). The molar mass of copper is less than that of lead, so a mole of copper atoms weighs less than a mole of lead atoms, despite both containing the same number of atoms.
What is the mass of 8.90 x 1023 lead atoms?
8.90 X 1023 lead atoms (1 mole Pb/6.022 X 1023)(207.2 grams/1 mole Pb) = 306 grams of lead =============
How many atoms are in 0.455 moles of lead?
Atomic mass: 207.2 grams.455 moles × (6.02 × 1023) = 2.74 × 1023 atoms of lead
Calculate the number of atoms per cubic meter in lead?
The number of atoms per cubic meter in lead can be calculated based on its density and atomic mass. Lead has a density of 11,343 kg/m^3 and an atomic mass of 207.2 g/mol. Using Avogadro's number, you can calculate that there are approximately 1.03 x 10^29 lead atoms in one cubic meter of lead.
Will kilogram of hydrogen contain more atoms then kilogram of lead?
Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.
The molar mass of a mole of lead?
molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g
What has a greater number of atoms a gram of lead or a gram of uranium?
The lead atom is way heavier than the helium atom. We know this by referring to the Periodic Table of Elements. The atomic mass of lead (Pb) is 207, while that of helium (He) is 4. Therefore, we can estimate that an atom of lead is about 50 times heavier than an atom of helium.
How many Helium-atoms and Carbon-atoms do you have if you have He-atoms with mass of 40amu and C-atoms with mass of 120amu?
Mass of 1 Helium atom is 4 amu and mass of 1 Carbon atom is 12 amu. So there are 10 helium atoms and 10 carbon atoms
Which one has a greater mass..2 atoms of lead or 0.000000000000000000000051 mole of helium?
207.2/ 6.022*10^23 = 34.4 x 10-23 g, mass of 1 Pb atom For two atoms: 34.4*2= 68.8 x 10-23 g Pb 5.1*10^-23*4.003 g He (atomic mass) / 1 mol He= 20.4*10^-23 g He And the mass of lead is greater.
What is the mass of lead?
Lead (Pb) has the atomic number 82 with an Atomic Mass of 207.2 amu.
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
