For this you need the atomic (molecular) mass of H2O. Take the number of moles and multiply it by the Atomic Mass. Divide by one mole for units to cancel. H2O= 18.0 grams
2.5 moles H2O × (18.0 grams) = 45.0 grams H2O
Go to the Periodic Table. H2O = 2x1 (hydrogen) + 1x16 (oxygen) = 18. So 1 mole of water weighs 18 grams and you have 25 grams. Divide 25 by 18 which gives you 1.39 moles.
In ammonia (NH3), there are 3 hydrogen atoms per molecule. In 0.791 moles of ammonia, the number of hydrogen atoms would be 0.791 moles x 3 atoms/molecule = 2.373 moles.
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.
In 1 mole of water (H2O), there are 2 moles of hydrogen (H). This means that in 2.08 moles of water, there are 2.08 x 2 = 4.16 moles of hydrogen. To convert moles to grams, we use the molar mass of hydrogen: 4.16 moles x 1.01 g/mol = 4.22 grams of hydrogen.
In one mole of CH4, there is one carbon atom and four hydrogen atoms. Therefore, in 2 moles of CH4, there would be a total of 8 hydrogen atoms.
There are 0.54 moles of hydrogen atoms in 0.09 moles of H2SO4. This is because each molecule of H2SO4 contains 2 hydrogen atoms. By multiplying the number of moles of H2SO4 by the number of hydrogen atoms per molecule, you can calculate the total moles of hydrogen atoms present.
3.65 grams of water is equal to .203 moles of H2O. This means there is also .203 moles of H2 present, or .408 grams.
To calculate the number of atoms in 3.4 grams of hydrogen peroxide, you first convert the grams to moles using the molar mass of hydrogen peroxide. Then, you use Avogadro's number to convert moles to atoms. There are approximately 6.022 x 10^23 atoms in 1 mole of a substance.
Benzene has the molecular formula C6H6, so there are 6 moles of hydrogen atoms in 1 mole of benzene. Therefore, in 2 moles of benzene, there are 2 * 6 = 12 moles of hydrogen atoms.
In ammonia (NH3), there are 3 hydrogen atoms per molecule. In 0.791 moles of ammonia, the number of hydrogen atoms would be 0.791 moles x 3 atoms/molecule = 2.373 moles.
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.
In 1 mole of water (H2O), there are 2 moles of hydrogen (H). This means that in 2.08 moles of water, there are 2.08 x 2 = 4.16 moles of hydrogen. To convert moles to grams, we use the molar mass of hydrogen: 4.16 moles x 1.01 g/mol = 4.22 grams of hydrogen.
In one mole of CH4, there is one carbon atom and four hydrogen atoms. Therefore, in 2 moles of CH4, there would be a total of 8 hydrogen atoms.
There are 0.54 moles of hydrogen atoms in 0.09 moles of H2SO4. This is because each molecule of H2SO4 contains 2 hydrogen atoms. By multiplying the number of moles of H2SO4 by the number of hydrogen atoms per molecule, you can calculate the total moles of hydrogen atoms present.
In NH4 2HPO4, there are 4 moles of hydrogen atoms present. Since each mole of hydrogen molecule (H2) contains 2 moles of hydrogen atoms, there are a total of 2 moles of hydrogen molecules in 1 mole of NH4 2HPO4.
To find the number of hydrogen atoms in 2 grams of cholesterol, you need to first calculate the molar mass of cholesterol (about 386 g/mol) and then divide the given mass by the molar mass to find the number of moles. Next, use the molecular formula of cholesterol (C27H46O) to determine the number of hydrogen atoms in one mole of cholesterol. Finally, multiply this number by the number of moles to find the total number of hydrogen atoms present in 2 grams of cholesterol.
How many hydrogen atoms are in 35.0 grams of hydrogen gas?
First, calculate the total weight of hydrogen in 1.5 lb of hydrogen peroxide: 1.5 lb * 454 g/lb * 0.0593 = 128.97 g of H2O2 Then, convert this weight to the number of moles of hydrogen: 128.97 g / 34.0147 g/mol = 3.79 moles of H2O2 Since each mole of H2O2 has 2 moles of hydrogen atoms, there are 3.79 * 2 = 7.58 moles of hydrogen atoms. Finally, calculate the number of atoms: 7.58 moles * 6.022 x 10^23 atoms/mol = 4.56 x 10^24 atoms of hydrogen.