Molarity of 720 gm of pure water
Answers
Answered by
1
Answer:
55.55 Moles
Explanation:
Molecular weight of water = 18 gm
Given weight of water = 720 gm
As we know that,
No. of moles =
Molecular weight
Given weight
∴ No. of moles of water =
18
720
=40
As we know that,
density of water =1gm/mL
∴density=
volume
mass
⇒Volume=density×mass
⇒volume=1×720=720mL=
1000
720
∴Molality=
Volume (in L)
No. of moles
=
(
1000
720
)
40
=55.55M
Answered by
0
Answer:
55.55
Explanation:
Molecular weight of water = 18 gm
Given weight of water = 720 gm
As we know that,
No. of moles =
Molecular weight
Given weight
∴ No. of moles of water =
18
720
=40
As we know that,
density of water =1gm/mL
∴density=
volume
mass
⇒Volume=density×mass
⇒volume=1×720=720mL=
1000
720
∴Molality=
Volume (in L)
No. of moles
=
(
1000
720
)
40
=55.55M
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