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1 molecule of hydrogen contains 2 hydrogen atoms,so 1 mole of hydrogen consists of 2 moles of atoms.
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What are the masses of molecular oxygen O2 hydrogen H2 and nitrogen in grams?
The mass of O2 is approximately 32.00g/mol. The mass of H2 is about 2.016g/mol. These masses can be obtained by using the atomic weights of the atoms that make up these molecules.
How many moles of NH3 can be produced by the reaction of 2.00 g of N2 with 3.00 g H2 Reaction N2(g) plus 3 H2(g) 2 NH3(g)?
2 mol H2 x 2 mol H2O/2 mol H2 x 18 g H2O/1 mol H2O = 36 g H2O
How many moles of hydrogen gas are produced when 0.066 mole of sodium is completely reacted?
.033 mol H2
How many hydrogen atoms are present in 3H2SO4?
3 x H2 = 6.
Why the number of atoms in one mole of hydrogen is double the number of atoms?
Because hydrogen occurs in nature as the diatomic molecule H2. So every molecule of H2 contains two hydrogen atoms. 1 mole of H2 has 6.022 x 1023 molecules of H2, while the number of atoms is twice that at 1.204 x 1024 atoms.
Explain why there are 1.2 x 1024 atoms in 1 mol of H2 and yet there are only 6.02 x 1023 atoms in 1 mol of Mg?
1+1=2 therefore apple = apple and then you take grams per mol. end
What are the masses of molecular oxygen O2 hydrogen H2 and nitrogen in grams?
The mass of O2 is approximately 32.00g/mol. The mass of H2 is about 2.016g/mol. These masses can be obtained by using the atomic weights of the atoms that make up these molecules.
A 7.1-g sample of N2 requires how many g of H2 for complete reaction?
7.1g N2 (1mol N2/ 28.02g N2)(3 mol H2/ 1 mol N2)(2.0158g H2/ 1 mol H2) = 1.5 g H2
How many atoms of hydrogen are in 16.2 l of h2 at stp?
Using stoichiometry, 16.2 L of H2 gas at STP equals about .7228 moles (1 L of gas at STP has a volume of 22.41 L), and there are 6.02 x 1023molecules of hydrogen in a mole, so we have (6.02 x 1023molecules/mol)(.7228 mol) = 4.35 x 1023 hydrogen molecules. There are two hydrogen atoms in each molecule, so the answer is (4.35 x 1023molecules H2)(2 H atoms/molecule) = 8.70 x 1023 H atoms in 16.2 L.
How many moles of H2 are there if 0.845 L of H2 is collected at 25 degrees Celsius and 782 mmHg?
0.0710 mol
What is the molar mass of gas h2?
The molar mass of H2 = 2.0159 g/mol
How many grams of hydrogen is produced when 167.12 g of hydrochloric acid is reacted with copper?
Cu + 2 HCl --> CuCl2 + H2 167.12 g HCl * (1 mol HCl/36.46 g HCl) * (1 mol H2/2 mol HCl) * (2.02 g/1 mol H2) = 4.629 g H2 4.63 grams of hydrogen gas is produced when 167.12 grams of hydrochloric acid reacts with copper.
How many atoms in 1g H2?
1 gram H2 (1 mole H2/2.016 grams)(6.022 X 1023/1 mole H2) = 3 X 1023 atoms of hydrogen gas =========================
How many moles of NH3 can be produced from 12.0mol of H2 and excess N2?
8 mol
Calculate the number of mole of hydrogen in 37.66gm?
37.66 (g H2) / 2.016 (g/mol H2)= 18.68 mole H2Molar mass of hydrogen: 2.016 (g/mol H2)
What is the maximum number of moles H2 that can be produced by the reaction of 3.00 mol of Ni with 4.50 mol of HCl according to the equation Ni 2HCl NiCl2 H2?
2,25 H2 moles
ANSWERED How many g of potassium must react with H20 to produce 1.60 L of H2 at STP according to the following equation?
You need the balanced chemical reaction equation :------------------------------------------------------------------------2 K + 2 H2O ----. 2 KOH + H2moles H2 = n H2 = ( 1.60 L ) ( 1 mol H2 / 22.4 L H2 ) = 0.07143 moles H2moles K = n K = ( 0.07143 mol H2 ) ( 2 mol K / 1 mol H2 ) = 0.14286 moles Kmass K = m K = ( 0.14286 mol K ) ( 39.10 g K / mol K )mass K = m K = 5.56 g of potassium
