0
For this you need the atomic (molecular) mass of H2. Take the number of moles and multiply it by the Atomic Mass. Divide by one mole for units to cancel.
3.00 moles H2 × 2.02 = 6.06 grams H2
Wiki User
∙ 15y ago
There are approximately 1.806 x 10^24 atoms in 3 moles of helium. This calculation is based on Avogadro's number, which is approximately 6.022 x 10^23 atoms per mole.
Wiki User
∙ 15y ago3 moles of Helium would have a mass of 12g
Wiki User
∙ 11y ago1 mole has 6.023 x 1023 atoms.
So 3 moles have 3 x 6.023 x 1023 atoms
Wiki User
∙ 8y ago3 moles of helium are equivalent to 12 g.
Add your answer:
Earn +20 pts
How many atoms are in 3.0 moles of helium?
There are approximately 1.8 x 10^24 atoms in 3.0 moles of helium. This is calculated using Avogadro's number (6.022 x 10^23) as the conversion factor between moles and atoms.
How many atoms are in 6.1x10-3 moles of carbon?
6,1x10-3 moles of carbon 36,7350592277.1020 atoms.
How many moles of atoms are in 12.0 gram of helium?
There are 2 moles of atoms in 12.0 grams of helium. Helium has a molar mass of 4 g/mol and each mole contains 6.02 x 10^23 atoms. Calculating the number of moles: 12 g / 4 g/mol = 3 moles. And then, 3 moles * 6.02 x 10^23 atoms/mol = 1.81 x 10^24 atoms.
How many atoms would 3 moles of Ca have?
3 moles of Ca would have 1.806 × 10^24 atoms.
How many atoms are in 0.7 grams of Helium?
.7 g= .17 mol = 1.05 x 10^23 atoms
How many atoms are in 3.0 moles of helium?
There are approximately 1.8 x 10^24 atoms in 3.0 moles of helium. This is calculated using Avogadro's number (6.022 x 10^23) as the conversion factor between moles and atoms.
How many atoms are in 6.1x10-3 moles of carbon?
6,1x10-3 moles of carbon 36,7350592277.1020 atoms.
How many moles of atoms are in 12.0 gram of helium?
There are 2 moles of atoms in 12.0 grams of helium. Helium has a molar mass of 4 g/mol and each mole contains 6.02 x 10^23 atoms. Calculating the number of moles: 12 g / 4 g/mol = 3 moles. And then, 3 moles * 6.02 x 10^23 atoms/mol = 1.81 x 10^24 atoms.
How many atoms are in 0.7 grams of Helium?
.7 g= .17 mol = 1.05 x 10^23 atoms
How many atoms would 3 moles of Ca have?
3 moles of Ca would have 1.806 × 10^24 atoms.
How many moles of hydrogen atoms are contained in 3 moles of ammonia?
Since ammonia has a chemical formula of NH3, it contains one mole of nitrogen and three moles of hydrogen per mole of ammonia. Therefore, 3 moles of ammonia contain 3 moles of nitrogen and 9 moles of hydrogen atoms.
How many atoms of hydrogens are in 3 moles of CH4?
There are 12 atoms of hydrogen in 3 moles of CH4. CH4 consists of one carbon atom and four hydrogen atoms. Since each mole of CH4 has 4 hydrogen atoms, 3 moles would have 3 * 4 = 12 hydrogen atoms in total.
How many atoms of sodium are present in 3 moles of sodium and what is the mass of it?
There are 1.8 x 10^24 atoms of sodium in 3 moles. The mass of 3 moles of sodium is 69 grams.
How many moles of PCl3 contain 3.68 1025 chlorine atoms?
To find the number of moles of PCl3, you need to first calculate the number of moles of Cl atoms in 3.68 * 10^25 atoms. There are 3 Cl atoms in each molecule of PCl3, so you divide the number of Cl atoms by 3 to get the number of moles of PCl3.
How many atoms of Helium does it take to make Carbon?
3
How many moles of hydrogen are present in 3 moles of methane?
There are 6 moles of hydrogen atoms in 3 moles of methane since the chemical formula for methane (CH4) contains four hydrogen atoms for every one carbon atom.
How many moles are in Li2O?
1 mole of Li₂O contains 2 moles of lithium (Li) atoms and 1 mole of oxygen (O) atoms. Therefore, in 1 mole of Li₂O, there are a total of 3 moles of atoms.
