Question #d5441

2 Answers
Junaid Mirza
Oct 20, 2017

1.25 moles

Explanation:

Mass of one mole of Sulphur is 32.065 grams

So,

#40 color(red)(cancel(color(black)("g"))) * "1 mole S"/(32.065color(red)(cancel(color(black)("g")))) = "1.25 moles S"#

Sean L.
Oct 20, 2017

1.247

Explanation:

Since #"moles"="mass"/"molar mass"#
and sulphur has a molar mass of #32.065#
#"moles"="40"/"32.065"#
#"moles"=1.247#

#therefore# there are 1.247 moles of sulphur in 40g

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