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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 oxygen are there in one mole of hydrogen peroxide?
In one mole of hydrogen peroxide (H2O2), there are two moles of oxygen atoms.
Does a mole of water weigh the same as a mole of hydrogen?
No. A mole of hydrogen (in its normal form) weighs 2 grams. A mole of water weighs 18 grams.
How many hydrogen atoms are in 871 grams of water?
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
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 grams of hydrogen are in 25.0g of water?
25x(2/18)=2.78g of hydrogen 25x(16/18)=22.22g of oxygen
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.
What percent of hydrogen in hydrogen peroxide?
The formula is H2O2 so in pure hydrogen peroxide it would be 50 mole %. As the molecular weight is 34 it would be 2/34 x 100 = 5.9 weight % (1 decimal place).
Which gas has the lowest mass per mole?
Hydrogen gas has the lowest mass per mole, with a molar mass of approximately 2 grams per mole.
How many hydrogen atoms are in 5.839 grams of c8h8?
To find the number of hydrogen atoms in 5.839 grams of C8H8, first calculate the molar mass of C8H8, which is 104 g/mol. Next, find the number of moles of C8H8 in 5.839 grams using the molar mass. Since there are 8 hydrogen atoms per molecule of C8H8, multiply the number of moles by 8 to get the number of hydrogen atoms.
How can you tell there is more oxygen in hydrogen peroxide than in water?
You can tell that there is more oxygen in hydrogen peroxide than in water because hydrogen peroxide has an extra oxygen atom compared to water. The chemical formula for hydrogen peroxide is H2O2, while the formula for water is H2O. This extra oxygen in hydrogen peroxide makes it a more oxidizing chemical compared to water.
What is the molecular weight of H2?
The molecular weight of H2, which is a diatomic molecule of hydrogen, is approximately 2.01588 grams per mole.
