average atomic mass of Sn = (Sn-118 mass*percentage + Sn-112 mass*percentage )/100
Sn-118 atomic mass = 117.9 amu
Sn-118 percentage = 60%
Sn-112 atomic mass = 111.9 amu
Sn-112 percentage = 40%
average atomic mass of Sn = (117.9*60+111.9*40)/100
average atomic mass of Sn = 115.5 amu
average atomic mass of Sn = 116
Answer: 116 50Sn
Thanks. A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar...
A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples: isotope mass relative (amu) abundance 118.90 60.9% 112 Sn 111.90 40.% Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS, Round your entry for the atomic mass to 3 significant digits. Caution: your correct answer will have the same...
A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples isotope mass relative ) abundance 117Sn 116.90 59.9 124 S 12391 41.5 Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Round your entry for the atomic mass to 3 significant digits Caution: your correct answer will have the...
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Review for Ch NO GRADE Question 1 of 18 (1 point) | Question Attempt: 1 of 1 A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the follow data on the isotopes of tin in these samples: mass relative (amu) abundance isotope 115 So 114.90 58.% 120Sn 119.90 42.% Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Be...