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Calculate the number of moles in 17 g of hydrogen peroxide (H2O2)
- a)3 mole
- b)2 mole
- c)1 mole
- d)1/2 mole
Correct answer is option 'D'. Can you explain this answer?
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Calculate the number of moles in 17 g of hydrogen peroxide(H2O2)a)3 mo...
Molecular mass of H2O2 is 34 u. So, 34 g of hydrogen peroxide will contain 1 moles. Therefore, 17 g of hydrogen peroxide will contain 17/34 moles or 1/2 mole.
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Calculate the number of moles in 17 g of hydrogen peroxide(H2O2)a)3 mo...
To calculate the number of moles in a given mass of hydrogen peroxide (H2O2), we need to use the formula:
Number of moles = Mass / Molar mass
1. Determine the molar mass of hydrogen peroxide (H2O2):
The molar mass of hydrogen (H) is approximately 1 g/mol, and the molar mass of oxygen (O) is approximately 16 g/mol. Since there are two hydrogen atoms and two oxygen atoms in one molecule of hydrogen peroxide, the molar mass of H2O2 is:
(2 * 1 g/mol) + (2 * 16 g/mol) = 2 g/mol + 32 g/mol = 34 g/mol
2. Calculate the number of moles:
Number of moles = Mass / Molar mass
Number of moles = 17 g / 34 g/mol
Number of moles = 0.5 mol
Hence, the correct answer is option D) 1/2 mole.
Number of moles = Mass / Molar mass
1. Determine the molar mass of hydrogen peroxide (H2O2):
The molar mass of hydrogen (H) is approximately 1 g/mol, and the molar mass of oxygen (O) is approximately 16 g/mol. Since there are two hydrogen atoms and two oxygen atoms in one molecule of hydrogen peroxide, the molar mass of H2O2 is:
(2 * 1 g/mol) + (2 * 16 g/mol) = 2 g/mol + 32 g/mol = 34 g/mol
2. Calculate the number of moles:
Number of moles = Mass / Molar mass
Number of moles = 17 g / 34 g/mol
Number of moles = 0.5 mol
Hence, the correct answer is option D) 1/2 mole.
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Calculate the number of moles in 17 g of hydrogen peroxide(H2O2)a)3 moleb)2 molec)1 moled)1/2 moleCorrect answer is option 'D'. Can you explain this answer?
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