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Fantom [35]
3 years ago
13

Calculate the atomic mass of lead. The four lead isotopes have atomic masses and relative abundances of 203.973 amu (1.4%), 205.

974 amu (24.1%), 206.976 amu (22.1%) and 207.977 amu (52.4%).
Chemistry
1 answer:
blondinia [14]3 years ago
8 0
207.217 amu
Work:
203.973 amu *(0.014) = 2.855 amu
205.974 amu *(0.241) = 49.639 amu
206.976 amu *(0.221) = 45.741 amu
207.977 amu *(0.524) = 108.979 amu

2.855 + 49.639 + 45.741 + 108.979 = 207.217 amu
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