magnesium is a valuble metal used in alloys, in battries, and thr manufacture of chemicals. it is obtained mostly from seawaterwhich contains about 1.3 grams of Mg for every kilogram of seawater. calculate the volume of seawater in liters needed to extract 8.0 x 104 tons of Mg

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally