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Can you explain the answer of this question below:
How many atoms of Oxygen are there in 18g of water? (Hint: Avagadro’s Number = 6.02 x 1023 atoms/mol)
  • a:
    8.02 x 1023
  • b:
    6.02 x 1023
  • c:
    5 .02 x 1023
  • d:
    7.02 x 1023
Correct answer is 'b'.
Verified Answer
Can you explain the answer of this question below:How many atoms of Ox...
18g H2O = 1mol water = 6.02 x 1023 molecules of water = 6.02 x 1023 atoms of oxygen.
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Can you explain the answer of this question below:How many atoms of Ox...
Number of molecules of H2O =18*6.02*10^23/18 =6.02*10^23 ...... then , there are 1 O atom in H2O ...so , number of O atoms in 18 gm of H2O = 6.02 *10^23.....
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Can you explain the answer of this question below:How many atoms of Ox...
's number is 6.022 x 10^23)

To solve this problem, we need to know the molecular formula of water, which is H2O. This means that each water molecule contains 2 hydrogen atoms and 1 oxygen atom.

To calculate the number of oxygen atoms in 18g of water, we first need to determine how many moles of water are present. We can use the formula:

moles = mass / molar mass

The molar mass of water is 18 g/mol (2 x 1.008 g/mol for hydrogen + 1 x 16.00 g/mol for oxygen). Therefore:

moles of water = 18 g / 18 g/mol = 1 mol

Since each mole of water contains 1 mole of oxygen atoms, we can use Avogadro's number to determine the number of atoms:

number of oxygen atoms = 1 mol x 6.022 x 10^23 atoms/mol = 6.022 x 10^23 atoms

Therefore, there are 6.022 x 10^23 atoms of oxygen in 18g of water.
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Can you explain the answer of this question below:How many atoms of Oxygen are there in 18g of water? (Hint: Avagadro’s Number = 6.02 x1023atoms/mol)a:8.02 x1023b:6.02 x1023c:5 .02 x1023d:7.02 x1023Correct answer is 'b'.
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Can you explain the answer of this question below:How many atoms of Oxygen are there in 18g of water? (Hint: Avagadro’s Number = 6.02 x1023atoms/mol)a:8.02 x1023b:6.02 x1023c:5 .02 x1023d:7.02 x1023Correct answer is 'b'. for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Can you explain the answer of this question below:How many atoms of Oxygen are there in 18g of water? (Hint: Avagadro’s Number = 6.02 x1023atoms/mol)a:8.02 x1023b:6.02 x1023c:5 .02 x1023d:7.02 x1023Correct answer is 'b'. covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Can you explain the answer of this question below:How many atoms of Oxygen are there in 18g of water? (Hint: Avagadro’s Number = 6.02 x1023atoms/mol)a:8.02 x1023b:6.02 x1023c:5 .02 x1023d:7.02 x1023Correct answer is 'b'..
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