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Use the periodic table to calculate the molar mass of each of the following compounds. Give your answer to the correct number of significant figures. Ammonia (NH3): g/mol Lead(II) chloride (PbCl2): g/mol Acetic acid (CH3COOH): g/mol

Respuesta :

Ammonia (NH3): ⇒ 17.04 g/molLead(II) chloride (PbCl2): ⇒ 278.10 g/mol

Acetic acid (CH3COOH): ⇒ 60.06 g/mol

It is the mass of 1 mole element, ion, or molecule.The molecular mass of ammonia is 17.031 g/mol, [tex]\rm \bold{PbCl_2 }[/tex] is 278.10 g/mol and [tex]\rm \bold { CH_3CH_2 OH}[/tex] is  60.06 g/mole.

Molar Mass:

  • It is the mass of 1 mole element, ion, or molecule.
  • It is measured in g/ mole.

To calculate the molar mass of molecule is the sum of the atomic mass of its constituent elements.

For  Ammonia ([tex]\rm \bold { NH_3}[/tex])

The atomic mass of

N -  14.006

H -  1.007

Hence,

Molecular mass of ammonia =  14.006 + 3( 1.007)

Molecular mass of ammonia = 17.031 g/mol

Hence, we can say that the molecular mass of  [tex]\rm \bold{PbCl_2 }[/tex] is 278.10 g/mol and [tex]\rm \bold { CH_3CH_2 OH}[/tex] is  60.06 g/mole.

To know more about molar mass, refer to the link:

https://brainly.com/question/22997914

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