Calculate the atomic mass of the element having the following distribution of isotopes.?

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Calculate the atomic mass of the element having the following distribution of isotopes.?

7.4 % 53.9396 amu
1.8 % 55.8749 amu
0.7 % 56.9054 amu
90.1 % 58.0133 amu

2007-03-01 22:01:47 · 2 answers · asked by satish r 1 in Science & Mathematics ➔ Chemistry

2 answers

7.4 * 53.9396 = 399.15304
1.8 * 55.8749 = 100.57482
0.7 * 56.9054 = 39.83378
90.1 * 58.0133 = 5226.99833

(399.15304+100.57482+39.83378+5226.99833) == 5766.55997

Atomic Mass = (5766.55997) / (100)
= 57.67

2007-03-01 22:10:17 · answer #1 · answered by classy!!! 3 · 0⤊ 0⤋

.074 x 53.9396 + .018 x 55.8749 + .007 x 56.9054 + .901 x 58.0133

2007-03-02 06:05:20 · answer #2 · answered by alimoalem2000 2 · 0⤊ 1⤋