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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 1 mole of water, there are 2 moles of hydrogen atoms. The molar mass of water is approximately 18 g/mol. Therefore, in 25 grams of water, there are around 1.39 moles of hydrogen atoms.
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
There is approximately 0.28mol in 5grams of water.
Calculations:
***18g/mol = molar mass of H2O
5g H2O (1mol/ 18g) = 0.2777.....
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What is the number of hydrogen atoms present in 0.791 mole of ammonia?
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.
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 GRAMS of hydrogen are present in 2.08 moles of water?
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.
How many hydrogen atoms are present in 2 moles of ch4?
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.
How many hydrogen atoms are in 0.09 moles of H2SO4 Please explain as well?
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.
How many hydrogen atoms are present in 3.65 grams of water?
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.
How many atoms of hydrogen are in 3.4 grams of hydrogen peroxide?
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.
How many moles of hydrogen atoms are present in 2 moles of benzene?
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.
What is the number of hydrogen atoms present in 0.791 mole of ammonia?
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.
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 GRAMS of hydrogen are present in 2.08 moles of water?
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.
How many hydrogen atoms are present in 2 moles of ch4?
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.
How many hydrogen atoms are in 0.09 moles of H2SO4 Please explain as well?
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.
What is the total number of moles of hydrogen in 1 mole of NH4 2HPO4?
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.
How many hydrogen atoms present in 2grams cholesterol?
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 moles are in 75.00 grams of hydrogen?
How many hydrogen atoms are in 35.0 grams of hydrogen gas?
How many atoms of hydrogen are present in 1.5 lb of hydrogen peroxide which is 5.93 percent hydrogen. 1 lb equals 454 grams.?
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.
