Calculate the average atomic mass of Mg using the followinf data:
`{:(,"% Natural Abudance","Molar mass "),(25^(Mg),80,24),(25^(Mg),10,25),(26^(Mg),10,26):}`

Calculate the average atomic mass of hydrogen using the following data : {:("Isotope","% Natural abudance mass","Atomic mass(amu)"),(.^(1)H," "99.985," "1),(.^(2)H," "0.015," "2):}

Calculate the atomic mass (average) of chlorine using the following data: {:(,,"% natural abundance",,"Molar mass"),(.^(35)Cl,,75.77,,34.9689),(.^(37)Cl,,24.23,,36.9659):}

Calculate the atomic mass (average) of chlorine using the following data : {:(," "%"Natural Adundance","Molar mass"),(.^(35)Cl," 75.77"," 34.9689"),(.^(37)Cl," 24.23"," 36.9659"):}

Calculate the mass in g of (a) 2 g -atom of Mg (b) 3N atoms of Mg .

Calculate the equivalent energy for 15 mg of mass.

Calculate the number of gold atoms in 300 mg of a gold ring of 20 carat gold (atomic mass of gold = 197, pure gold is 24 carat).

In a periodic table, the average atomic mass of magnesium is given as 24,312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are " "_(12)^(24)Mg (23.98504 u), " "_(12)^(25)Mg (24.98584 u) and " "_(12)^(26)Mg (25.98259 u). The natural abundance of " "_(12)^(24)Mg is 78.99% by mass. Calculate the abundances of the other two isotopes.

In a periodic table, the averge atomic mass of magnesium is given as 24.312 u . The average value is based on their relative natural abundance on earth. The three isotopes and their masses are ._12Mg^(24) (23.98504u) , ._(12)Ng^(25) (24.98584) and ._12Mg^(26) (25.98259 u) . The natural abundance of ._12Mg^(24) is 78.99% by mass. Calculate the abundances of the other two isotopes.