1.

Calculate the mass of the following: 2 moles of water

Answer»

Answer:

ONE mole of H2O is made up of 2 moles of Hydrogen ATOMS and 1 mole of Oxygen atom.

Mass of 1 mole of Hydrogen atoms= 1 g /mol

Mass of 1mole of Oxygen atoms = 16 g/mol

Mass of two moles of Hydrogen atoms = 2X 1 g/mol = 2 g/mol.

Mass of one mole of Oxygen atoms = 1 x 16 g /mol

Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol

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