If 100 atoms of element X contains 70 atoms of 9X and 30 atoms of 11X, calculate the relative atomic mass of X. by Sunday | May 9 | Chemistry WAEC | 0 comments A. 9.6 B. 10.6 C. 11.6 D. 20.0 Correct Answer: Option A A. 9.6 Users Also Read These:if an element X with atomic number 13 combines with…Chlorine consisting of two isotopes of mass number…If the molar mass of X(HCO3)2 is 162 g mol−1;…An element having the atomic number 17 will resemble…One mole of a compound M(HCO3)2 has a mass of 162g.…