Answer:
Oxygen's atomic weight is 16.00 amu.
Explanation:
1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom!
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The mass of oxygen present in the 10 grams of water is 8.89 grams.
The chemical reaction of oxygen and hydrogen to form water is given as;
2H₂ + O₂ ------> 2H₂O
In the reaction above, we can deduce the following;
36 grams of water --------------------------- 32 grams of oxygen
10 grams of water ------------------------------- ?
The mass of oxygen present in 10 grams of water is calculated as follows;
[tex]mass \ of \ oxygen = \frac{10 \times 32}{36} \\\\mass \ of \ oxygen = 8.89 \ grams[/tex]
Thus, 10 grams of water contains 8.89 grams of oxygen is the compound.
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