The density of liquid mercury is 13.69 g/cm 3 . how many atoms of mercury are in a 17 ml sample? use "e" for "×10" and report th

Question

xenn [34]

3 years ago

15

The density of liquid mercury is 13.69 g/cm 3 . how many atoms of mercury are in a 17 ml sample? use "e" for "×10" and report th

e answer to at least 4 significant figures.

Chemistry

1 answer:

aivan3 [116] · Answer 1 · 2022-05-11T16:24:35+03:00

step one; calculate mass
Mass=density x volume
1ml=1cm^3
13.69g/cm^3 x 17 cm^3=232.73g

step 2; calculate the number of moles of mercury
(232.73g/200.59g/mol)(molar mass of mercury= 1.1602moles

by use of avogdros law
1moles =6.023E23 atoms
what about 1.1602moles
=1.1602 x 6.023E23= 6.988E23atoms