Amount of hydrogen gas = 1.0/2.0 = 0.50mol
In each molecule of hydrogen gas there are two hydrogen atoms.
1 mol of H2 contains 6.02 x 1023 molecules (avogadro constant).
Number of H atoms = 2 x 0.50 x 6.02 x 1023 = 6.02 x 1023
The gram atomic mass of hydrogen is close to 1, so that 1 g of the gas contains one mole of hydrogen atoms. Each atom contains 1 electron, so that the stated amount of gas contains Avogadro's Number of electrons, 6 X 1023 to the justified number of significant digits.
About 1 mole
1 gram molybdenum (1 mole Mo/95.94 grams)(6.022 X 1023/1 mole Mo) = 6 X 1021 atoms of molybdenum ========================
2
To work this out you need to know the atomic weight of calcium and Avogadros number, which is the number of atoms in a gram atom. Calcium has an atomic weight of 40.078. Therefore a gram ato is 40.078 grams which contains 6.02214129(27)×1023 atoms. 1g of calcium contains 6.02214129(27)×1023 / 40.078 1.502 X 1022
Yes. One mole (6.022x1023) of hydrogen atoms would have a mass of about 1g.
There are approximately 3.01 x 10^22 atoms in 1 gram of H2 molecules.
1
The gram atomic mass of hydrogen is close to 1, so that 1 g of the gas contains one mole of hydrogen atoms. Each atom contains 1 electron, so that the stated amount of gas contains Avogadro's Number of electrons, 6 X 1023 to the justified number of significant digits.
About 1 mole
To find the number of moles in 12g of hydrogen, we first need to determine the molar mass of hydrogen, which is approximately 1g/mol. Then we can divide the given mass (12g) by the molar mass (1g/mol) to find that there are 12 moles of hydrogen in 12g.
One pound = 0.453592kg. One Mole of H = 1g 0.453592kg of H = 453.592 mole of H According to the ideal gas law, one mole of gas will occupy 22.4 liters as stp. One pound of H will occupy 10,160.2608 liters, or 358.806 cubic feet. Be careful. Most applications of this calculation will deal with hydrogen gas, which has two hydrogen atoms per molecule at standard temperature and pressure. In such cases, divide the volume calculated above by two.
hydrogen-1g nitrogen-14g oxygen-16g
The answer is 72,24.1023 atoms of H. Hydrogen - 1 mole = 1g (atomic mass '1'). 1 (hydrogen atomic number) x 2 (specified moles) x 6 (hydrogen atoms in SH6) x (6.02 x 10^23) (avogadro's number). Avogadro's number is used in working out molarity, using the above equation. But I suppose that you think to SF6, sulfur hexafluoride.
2 Mg(OH)2 have 10 atoms.
it is equal because 1g
They all contain electrons, protons, and neutrons. They are always neutral, or they would be Ions (I-ons) They have quarks that make up all or the protons and neutrons and electrons there are 623 billion atoms in 1g of hydrogen and 4g of helium and 7g of lithium ect 623 billion=1 mol