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A compound which contains one atom of X and two atoms of Y for each three atoms of Z is made by mixing 5.0 g of X, 1.15×1023 atoms of Y and 0.03 g−atoms of Z. If only 4.40 g of the compound results, then the value of atomic mass of Y is (The atomic masses of Xand Z are 60 and 80, respectively and take avogadro number as 6×1023.)70

Answer» A compound which contains one atom of X and two atoms of Y for each three atoms of Z is made by mixing 5.0 g of X, 1.15×1023 atoms of Y and 0.03 gatoms of Z. If only 4.40 g of the compound results, then the value of atomic mass of Y is (The atomic masses of Xand Z are 60 and 80, respectively and take avogadro number as 6×1023.)
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