What is the mass of 1 mol of atoms of P?

1 Answer
Johnson Z.
Nov 28, 2015

The mass of #1# mole of phosphorus atoms is approximately #30# #g#.

Explanation:

The mass of #1# mole of phosphorus atoms can be expressed as grams per mol (#g/(mol)#). This is also known as molar mass. If we check on the periodic table, the molar mass of phosphorus is about #30.97# #g/(mol)#.

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To find the mass of #1# mole of phosphorus atoms, we can use the formula:

#m=nM#

where:
m = hass (grams)
n = number of moles
M = molar mass

#m=nM#
#m=(##1# #mol)##(30.97# #g/(mol)#)
#m=(##1# #color(red)cancelcolor(black)(mol))##(30.97# #g/(color(red)cancelcolor(black)(mol))#)
#m=(1)(30.97# #g#)
#m=30.97# #g#
#m=30# #g#

Note:
The final answer should always have the correct number of significant figures.

#:.#, the mass of #1# mole of phosphorus atoms is approximately #30# #g#.

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