Question
In a water molecule, the ratio of the mass of Hydrogen to the mass of Oxygen is always ________.
The correct answer is
1:8
1 mole of hydrogen = 1 gram
1 mole of oxygen = 16 grams
Water (H2O) = 2 hydrogen atoms + 1 oxygen atom
2 moles of hydrogen = 2 grams
1 mole of oxygen = 16 grams
The ratio of the mass of hydrogen to the mass of oxygen = 2/16 = 1/8
The ratio of the mass of hydrogen to the mass of oxygen is always 1: 8.
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Important Questions from Structure of Atom
Identify the element having zero valency
What is the atomic number of nitrogen?
What are isobars?
Which of the following metals is the most reactive element?
Which of the following metals is the most ductile metal?
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