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How many moles are in 454 grams in sodium?
To calculate the number of moles in 454 grams of sodium, you need to divide the given mass by the molar mass of sodium. The molar mass of sodium is approximately 23 grams/mol. Therefore, 454 grams of sodium is equal to 454/23 = 19.74 moles of sodium.
How many moles are there in 34.02 g of hydrogen peroxide?
You need to provide the element or molecule name in order to determine the number of moles from the mass that you use. To calculate moles from grams from the given information, it's 34g / (g/mol of specific element or molecule) = mol of specific element or molecule.
A certain amount of hydrogen peroxide was dissolved in 100 ml of water and then titrated with 1.68m kmno4 how much h2o2 was dissolved if the titration required 22.3 ml of the kmno4 solution?
To calculate the amount of hydrogen peroxide (H2O2) dissolved, you can use the equation: moles of KMnO4 = moles of H2O2. Firstly, calculate the moles of KMnO4 (given concentration and volume). Then, use the balanced chemical equation to determine the moles of H2O2, as they have a 1:1 stoichiometric ratio. Finally, convert moles of H2O2 to grams using the molar mass to find the amount dissolved in the solution.
What is oxygen to hydrogen mass ratio h2o2?
16
How many grams of hydrogen peroxide H2O2 must be added to 1500 ml of water to produce a concentration of 1.33 m molal solution Recall that the density of water is 1.0 gram?
To calculate the amount of hydrogen peroxide (H2O2) needed to make a 1.33 molal solution in 1500 ml of water, you first need to convert the volume of water to grams. Since the density of water is 1.0 g/ml, 1500 ml of water is equal to 1500 grams. Next, calculate the moles of H2O2 needed using the molality formula (molality = moles of solute / mass of solvent in kg). Then convert the moles to grams by multiplying by the molar mass of H2O2 (34.02 g/mol).
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 molecules are there in 29.777 grams of hydrogen peroxide H2O2?
To find the number of molecules in 29.777 grams of hydrogen peroxide (H2O2), you first need to calculate the number of moles in 29.777 grams using the molar mass of H2O2. Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
What is the proportion by mass of hydrogen to oxygen in hydrogen peroxide?
The proportion by mass of hydrogen to oxygen in hydrogen peroxide is 1:16. This means that for every 1 gram of hydrogen in hydrogen peroxide, there are 16 grams of oxygen.
How do you find moles of hydrogen?
To find the moles of hydrogen, you can divide the given mass of hydrogen by its molar mass. The molar mass of hydrogen is approximately 1 g/mol. So, moles of hydrogen = mass of hydrogen (in grams) / molar mass of hydrogen (approximately 1 g/mol).
How many moles of hydrogen gas are in 5.04 grams in hydrogen gas?
To find the number of moles of hydrogen gas, we first need to convert the mass of hydrogen gas from grams to moles using the molar mass of hydrogen gas (2 g/mol). 5.04 grams of hydrogen gas is equal to 5.04 g / 2 g/mol = 2.52 moles of hydrogen gas.
How many moles of hydrigen are present in a 2 grams sample of hydrogen gas?
Mass (g) = Mr * Moles If you rearrange it, you get Moles = Mass/Mr Working with a 2dp periodic table you get: Moles = 2/1.01 =1.98 There are 1.98 moles of hydrogen in 2g of H2 gas.
How many moles are in 454 grams in sodium?
To calculate the number of moles in 454 grams of sodium, you need to divide the given mass by the molar mass of sodium. The molar mass of sodium is approximately 23 grams/mol. Therefore, 454 grams of sodium is equal to 454/23 = 19.74 moles of sodium.
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 moles are there in 34.02 g of hydrogen peroxide?
You need to provide the element or molecule name in order to determine the number of moles from the mass that you use. To calculate moles from grams from the given information, it's 34g / (g/mol of specific element or molecule) = mol of specific element or molecule.
How many moles are in 18.0grams of hydrogen gas?
To find the number of moles in 18.0 grams of hydrogen gas, you need to divide the given mass by the molar mass of hydrogen gas. The molar mass of hydrogen gas (H2) is about 2.016 grams/mol. So, 18.0 grams / 2.016 grams/mol ≈ 8.93 moles of hydrogen gas.
How many moles are in 75.00 grams of hydrogen?
How many hydrogen atoms are in 35.0 grams of hydrogen gas?
How many molecules are there in 6.802 grams of hydrogen peroxide?
The molecular mass of H2O2 is 2(1.0) + 2(16.0) = 34.0Amount of H2O2 = 6.802/34.0 = 0.200mol So there are 0.200 moles of H2O2 moles. To get the exact number, multiply this by the Avogadro's constant.
