Venus's atmosphere contains about 4.6 ×10^20 kg of carbon dioxide (CO2). If all of the oxygen at

step 1 So in atomic unit mass, what is the mass of one water molecule? So we see that water molecule ha

Venus's atmosphere contains about 4.6 ×10^20 kg of carbon...

Venus's atmosphere contains about $4.6 \times 10^{20} \mathrm{kg}$ of carbon dioxide $\left(\mathrm{CO}_{2}\right)$. If all of the oxygen atoms in the $\mathrm{CO}$, were combined with hydrogen to make water $\left(\mathrm{H}_{2} \mathrm{O}\right)$ instead of carbon dioxide, what would the total mass of water be? (Note:Hydrogen has an atomic mass of $1 ;$ carbon, $12 ;$ oxygen, $16 .$ How does this compare to the mass of Earth's oceans, about $1.4 \times 10^{21} \mathrm{kg} ?$

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Key Concepts

Molar Mass Calculation

Molar mass calculation involves determining the mass of one mole of a substance by adding together the atomic masses of all atoms in a molecule. This concept is central to converting between the mass of a chemical compound and the number of moles, which is essential when planning or analyzing chemical reactions.

Stoichiometry

Stoichiometry is the quantitative study of reactants and products in chemical reactions. It uses balanced chemical equations to relate the amounts of substances that participate in a reaction, allowing one to predict the mass of products formed or reactants needed based on known quantities.

Chemical Reaction Conversion

Chemical reaction conversion involves understanding how atoms rearrange during a chemical reaction. This concept is crucial when determining how elements in one chemical compound can be recombined to form another, ensuring that the mass and number of atoms are conserved in the reaction process.

Mass Comparison and Unit Conversion

Mass comparison and unit conversion are important for relating the calculated quantities of substances, such as water and other forms, to larger-scale measurements. Converting units and comparing masses allows scientists to relate laboratory-scale calculations to real-world quantities, such as the total mass of planetary oceans or atmospheres.

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