Ask Question
9 February, 22:42

3.95x10^25 atoms Cu2S to grams

+5
Answers (1)
  1. 10 February, 00:25
    0
    Mass = 10440.9 g

    Explanation:

    Given dа ta:

    Number of atoms of Cu₂S = 3.95*10²⁵

    Grams of Cu₂S = ?

    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 example,

    18 g of water = 1 mole = 6.022 * 10²³ molecules of water

    1.008 g of hydrogen = 1 mole = 6.022 * 10²³ atoms of hydrogen

    Now we calculate the number of moles from given number of atoms.

    3.95*10²⁵ atoms / 6.022 * 10²³ atoms * 1 mol

    0.656*10² mol

    65.6 mol

    Now we will calculate the mass:

    Mass = number of moles * molar mass

    Mass = 65.6 mol * 159.16 g/mol

    Mass = 10440.9 g
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “3.95x10^25 atoms Cu2S to grams ...” 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