What is the molecular mass of #""^14CO_2#?

2 Answers
Jul 13, 2016

Answer:

#14+16+16=??"amu"#

Explanation:

Garden variety carbon dioxide has a mass of 44 amu. Label the carbon to give #""^(14)C# and the molecular mass increases by 2 amu. Capisce??

Jul 13, 2016

Mass of one molecule of #color(white)(i)^14"CO"_2# #="Mass of one atom of" color(white)(i)^14"C"##+2xx"Average atomic mass of Oxygen atom"#
#=14.003241+2xx15.9994=46.002041# amu