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How many moles of H2 gas are present in 6.0 L flask at stp?
The answer is 0,2675 moles.
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 molecules (not moles) of NH3 are produced from 1.57104 g of H2?
The answer is 1,57.10e27 molecules.
How many molecules of H2 react with each molecule of N2?
Three: The reaction equation is N2 + 3 H2 -> 2 NH3
What type of chemical bond occurs between atoms in molecules such as h2 ch4 nh3 h2 cch2 n2 cl2 and many large biological molecules?
covalent bonds --- sharing electrons
How many hydrogen molecules are in 31.8 L H2(g) at STP?
The answer is 8,5379.10e23 molecules.
How many molecules of H2 are required to completely react with six molecules of N2?
The chemical reaction is:N2 + 3 H2 = 2 NH3For six molecules of nitrogen N2 18 molecules of hydrogen H2 are needed.
How many hudrogen molecule are there in 10grams of hydrogen?
1 mole H2 = 2.016g H2 = 6.022 x 1023 molecules H210g H2 x 1mol H2/2.016g H2 x 6.022 x 1023 molecules H2/1mol H2 = 3 x 1024 molecules H2 (rounded to 1 significant figure)
what volume in milliliters will 0.00922 g of H2 gas occupy at STP?
0.00922 g of H2 gas will occupy approximately 0.100 L at STP
How many moles of H2 gas are present in 6.0 L flask at stp?
The answer is 0,2675 moles.
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 hydrogen gas contained in 9.03x1023?
Given/Known:1mole of H2 = 2.01588g H21mole of H2 = 6.022 x 1023 molecules H21) Convert molecules of H2 to moles of H2 by doing the following calculation.9.4 x 1025 molecules H2 x (1mol H2/6.022 x 1023 molecules H2) = 156mol H22) Convert the moles of H2 to mass in grams of H2.156mol H2 x (2.01588g H2/1mol H2) = 314g H2
How many molecules of H2(g) are there in a 21.25 gram sample?
The number of molecules is 6,3985.10e24.
How many molecules (not moles) of NH3 are produced from 1.57104 g of H2?
The answer is 1,57.10e27 molecules.
How many moles of molecules are there in 40.5 g of H2?
20.1 moles
How many molecules of H2 are present in 0.175 moles of H2?
0.175 X Avogadro's Number = about 1.05 X 1023.
Why does H2 molecules exist when He2 does not?
H2 technically does contain molecules. Or at least, molecule. H2 is two hydrogens covalently bonded, so that the lowest energy level is filled. Since H2 has two atoms (hydrogen and hydrogen), it is not an element, because there is more than one atom. H2 is a molecule itself. However, in context of nature, it is rare that you would ever find an H2 molecule on its own unless you were working with one in a laboratory. So, if you were considering the whole of an H2 gas, there would be many molecules of H2. Short answer: H2 is a molecule itself. Many H2 means there are many molecules of H2.
