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How many moles are in 56 micrograms of selenium?
First, we need to convert micrograms to grams by dividing by 1,000,000. Then, we can use the molar mass of selenium (78.971 g/mol) to find the number of moles. So, 56 micrograms of selenium is equal to 0.000056 grams, which corresponds to approximately 7.07 x 10^-7 moles of selenium.
What has more atoms 2.88 grams of helium atoms or 16.4 grams of zinc atoms?
2,88 grams of helium have 3,761.1023 atoms; 16,4 grams of zinc have 1,511.1023 atoms.
What element is less dense selenium or oxygen?
Oxygen is less dense than selenium. Oxygen has a density of about 1.43 grams per cubic centimeter, while selenium has a density of about 4.81 grams per cubic centimeter.
How many atoms are there in 61.7 g of selenium?
1 mol of sulfur contains 6.02 x 1023 molecules (avogadro constant). In one molecule of sulfur, S8, there are 8 sulfur atoms. Thus, number of atooms in 7.20 moles of sulfur = 8 x 7.20 x 6.02 x 1023 = 3.47 x 1025 Note: Sulfur does not usually exist in a monatomic form but instead forms cyclic octatomic molecules with molecular formula S8.
How do you convert 50.0 grams into atoms?
To convert grams to atoms, you need to use Avogadro's number, which is 6.022 x 10^23 atoms/mol. First, you need to determine the molar mass of the substance in grams/mol. Then, divide the given grams by the molar mass to get moles, and finally multiply by Avogadro's number to find the number of atoms.
How many moles are in 56 micrograms of selenium?
First, we need to convert micrograms to grams by dividing by 1,000,000. Then, we can use the molar mass of selenium (78.971 g/mol) to find the number of moles. So, 56 micrograms of selenium is equal to 0.000056 grams, which corresponds to approximately 7.07 x 10^-7 moles of selenium.
What has more atoms 2.88 grams of helium atoms or 16.4 grams of zinc atoms?
2,88 grams of helium have 3,761.1023 atoms; 16,4 grams of zinc have 1,511.1023 atoms.
What element is less dense selenium or oxygen?
Oxygen is less dense than selenium. Oxygen has a density of about 1.43 grams per cubic centimeter, while selenium has a density of about 4.81 grams per cubic centimeter.
How do you determine how many grams are in atoms?
an atom weighs about 1o trillionths of a trillionth of a trillionth of a gram that is all I know.
How many atoms are in 187 grams of calcium?
To find the number of atoms in 187 grams of calcium, we first need to determine the number of moles of calcium. This is done by dividing the mass (in grams) by the molar mass of calcium (40.08 g/mol). Next, we can use Avogadro's number (6.022 x 10^23 atoms/mol) to calculate the number of atoms in that number of moles.
How many atoms are there in 61.7 g of selenium?
1 mol of sulfur contains 6.02 x 1023 molecules (avogadro constant). In one molecule of sulfur, S8, there are 8 sulfur atoms. Thus, number of atooms in 7.20 moles of sulfur = 8 x 7.20 x 6.02 x 1023 = 3.47 x 1025 Note: Sulfur does not usually exist in a monatomic form but instead forms cyclic octatomic molecules with molecular formula S8.
What is the mass of 19 atoms of copper in grams?
To calculate the mass of 19 atoms of copper in grams, you need to determine the molar mass of copper. The molar mass of copper is approximately 63.55 grams per mole. Then, you can use Avogadro's number (6.022 x 10^23 atoms per mole) to convert atoms to grams. So, the mass of 19 atoms of copper would be 19*(63.55/6.022e23) grams.
How many atoms in 10 grams of lead?
To find the number of atoms in 10 grams of lead, you would first need to determine the number of moles of lead (using the molar mass of lead) and then use Avogadro's number (6.022 x 10^23 atoms/mol) to calculate the number of atoms. This would be approximately 1.15 x 10^23 atoms in 10 grams of lead.
How many atoms are 6.02 grams of sulfur?
To find the number of atoms in 6.02 grams of sulfur, you first need to determine the number of moles of sulfur in 6.02 grams using the molar mass of sulfur. Then, you can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles of sulfur to atoms.
How do you convert 50.0 grams into atoms?
To convert grams to atoms, you need to use Avogadro's number, which is 6.022 x 10^23 atoms/mol. First, you need to determine the molar mass of the substance in grams/mol. Then, divide the given grams by the molar mass to get moles, and finally multiply by Avogadro's number to find the number of atoms.
How many atoms does thirty two grams of sulfur contain?
Thirty two grams of sulfur contains approximately 1.0 x 10^23 sulfur atoms. This is calculated by converting the mass to moles and then using Avogadro's number to determine the number of atoms in that many moles.
The mass in grams of 1.9 mol selenium?
1.9 mol Se ( 78.96 grams/1mol Se ) = 150.024 grams
