Ask Question
22 November, 08:19

Convert 1.3 x10^25 atoms of helium to grams of helium

+5
Answers (1)
  1. 22 November, 11:14
    0
    88 g

    Explanation:

    Given dа ta:

    Number of atoms of helium = 1.3*10²⁵

    Mass in gram = ?

    Solution:

    The given problem will solve 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.

    For helium:

    1 mol = 6.022 * 10²³ atoms of He

    1.3*10²⁵ atoms of He * 1mol / 6.022 * 10²³ atoms of He

    0.22*10² mol

    22 mol

    Mass in gram:

    Mass = number of moles * molar mass

    Mass = 22 mol * 4 g/mol

    Mass = 88 g
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Convert 1.3 x10^25 atoms of helium to grams of helium ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers