​A Sample of Water,H₂O,has a Mass of 38

question 66

Multiple Choice

​A sample of water,H₂O,has a mass of 38.0g) How many atoms of oxygen are in the sample? (oxygen has 16.0 g/mol,hydrogen has 1.00 g/mol,and N_A = 6.02 × 10²³)

• A)​3.34 × 10²²
• B)​5.35 × 10²³
• C)​1.27 × 10²⁴
• D)​2.29 × 10²⁵

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