13.8 g element consist 4.6xx10^(22) atoms which the atomic mass of ele

1.	13.8 g element consist 4.6xx10^(22) atoms which the atomic mass of element ?
Answer» 290 180 34.4 10.4 Solution :`4.6xx10^(22)` atoms `= 13.8g` `6.022xx10^(23)` atoms `=(?)` Atomic mass `=(6.022xx10^(23)xx13.8)/(4.6xx10^(22))` `= 180.66 ~~180 G "MOLE"^(-1)`

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