Show that there are 16 grams of oxygen in 18 grams of water.
To show: 16 grams of oxygen in present in 18 grams of water.
Explanation of Solution
Given:
Formula of water =
Number of hydrogen atoms = 2
Number of Oxygen atoms = 1
Atomic mass of 1 Hydrogen atom = 1 g/mol
Atomic mass of 1 Oxygen atom = 16 g/mol
Formula used:
Here,
Calculation:
Formula of water =
Number of hydrogen atoms = 2
Number of Oxygen atoms = 1
Atomic mass of 1 Hydrogen atom = 1 g/mol
Atomic mass of 1 Oxygen atom = 16 g/mol
Now ,the mass of one water molecule
Now determine the number of water molecules in 18g of water by dividing the mass of water by mass of one water molecule.
Substitute 18 grams for
Since there is one oxygen atom in each water molecule, hence the number of oxygen atoms in 18 grams of water will also be
Substitute 1 grams/ unit for
Conclusion:
Hence, there will be 16 grams of oxygen in 18 grams of water.
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