Ask Question
6 September, 17:53

How many molecules of carbon dioxide, CO2, are present in 388.1 grams?

+2
Answers (1)
  1. 6 September, 18:06
    0
    53.11 * 10²³ molecules

    Explanation:

    Given dа ta:

    Number of molecules of CO₂ = ?

    Mass of CO₂ = 388.1 g

    Solution:

    Formula:

    Number of moles = mass / molar mass

    Molar mass of CO₂ = 12 * 1 + 16*2

    Molar mass of CO₂ = 44 g/mol

    Now we will put the values in formula.

    Number of moles = 388.1 g / 44 g/mol

    Number of moles = 8.82 moles

    Now we will calculate the number of molecules by using Avogadro number.

    It is the number of atoms, ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

    The number 6.022 * 10²³ is called Avogadro number.

    1 mole = 6.022 * 10²³ molecules

    8.82 mol * 6.022 * 10²³ molecules / 1 mol

    53.11 * 10²³ molecules
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “How many molecules of carbon dioxide, CO2, are present in 388.1 grams? ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers