Math  /  Word Problems

QuestionAn oxygen atom weighs 2.66×1023 g2.66 \times 10^{-23} \mathrm{~g}; a glass of water weighs 0.050 kg0.050 \mathrm{~kg}.
1. Find the mass of 1 mole of oxygen atoms: g\square \mathrm{g}.
2. How many moles of oxygen equal the mass of water? \square.

Studdy Solution
Calculate the number of moles of oxygen atoms that have a mass equal to the mass of a glass of water.
Molesoxygen=50. g/16. g=3.125Moles_{oxygen} =50. \mathrm{~g} /16. \mathrm{~g} =3.125The mass of mole of oxygen atoms is16. g and there are3.125 moles of oxygen atoms in a glass of water.

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