Determine the molecular mass and its uncertainty for C3H7OH. Use correct sit figs.


Determine the molecular mass for C3H7OH. Use correct sit figs.

Molar mass

Molar mass is defined as the sum of molar masses of all the atoms in a molecule in 1 mole or in Avogadro's number of particles or in other words {eq}6.022 \times 10^{23} {/eq}. Its SI unit is gram/mol.

Answer and Explanation:

We have the molecular formula:

{eq}C_3H_7OH {/eq}


{eq}\\ (3 \times 12 )+ (7 \times 1)+ 16 + 1 \\ =36 + 7+ 16 + 1 \\ =60 gram/mol {/eq}

Learn more about this topic:

What is Molar Mass? - Definition, Formula & Examples

from General Studies Science: Help & Review

Chapter 27 / Lesson 24

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