Question

Что тяжелее 2*10 в 23 (степени) молекул кислорода или 2*10 в 23(степени) углекислого газа

Answer 1

Углекислого газа, так как атомная масса больше у CO2, чем у просто О2

Answer 2

Comparing the Weight of Oxygen and Carbon Dioxide Molecules

To compare the weight of 2*10^23 molecules of oxygen and carbon dioxide, we can calculate the molar mass of each molecule and then compare the total weight.

Molar Mass of Oxygen (O2) Molecule: The molar mass of oxygen (O2) is approximately 32 g/mol.

Molar Mass of Carbon Dioxide (CO2) Molecule: The molar mass of carbon dioxide (CO2) is approximately 44 g/mol.

Calculation:

Now, let's calculate the weight of 2*10^23 molecules of each substance.

Weight of 2*10^23 Oxygen (O2) Molecules: Using the molar mass of oxygen (O2) (32 g/mol): ``` Weight = (2*10^23 molecules) * (32 g/mol) = 64*10^23 g ```

Weight of 2*10^23 Carbon Dioxide (CO2) Molecules: Using the molar mass of carbon dioxide (CO2) (44 g/mol): ``` Weight = (2*10^23 molecules) * (44 g/mol) = 88*10^23 g ```

Conclusion:

The weight of 2*10^23 molecules of carbon dioxide (CO2) is heavier than the weight of 2*10^23 molecules of oxygen (O2).