Stoichiometry part 1

�

100Percentile - Online Practice Tests, Detailed Analysis Reports, IIT-JEE, Mathematics, Physics, Chemistry, Science

Engineering

Medical

MBA

Home

Courses

Questions & Discussions

Blog

Resources

IITJEE

AIEEE

Filter

	All
	Low
	Medium
	High

Filter

	All
	No
	Yes

Filter

	All
	New Title
	Answered but not Reviewed
	Answered and Reviewed
	Answered by Moderator

Stoichiometry part 1

Questions & Discussions » Chemistry Discussions


Advanced Search \| Show All Video Posts

Replies : 2	Last Replied :22/06/2009

Views : 90	Go to last reply

Author

Message

18/06/2009 14:21:02

Title: Stoichiometry part 1

Status : Answered by Moderator

Difficulty Level: -

Importance for Exam: -

MEGHNA HADA

Joined: 07/05/2009

Expert Level

Total points

Total Messages

Contact Me (Offline)

if x% of a solute of molecular mass(M.) is present in a solution having a density of 'd'gm/cc, calculate the molality, molarity , mole fraction if x% is by volume.

Author

Message

18/06/2009 14:39:10

Title: Re:Stoichiometry part 1

Status:

ARPIT SHARMA

Joined: 02/05/2009

Expert Level

Total points

Total Messages

Contact Me (Offline)

M=10xd/Molecular Weight

mole fraction=100xd/moles ofA[1000D-10XD]

Author

Message

22/06/2009 16:21:12

Title: Re:Stoichiometry part 1

Status:

Kulvinder Singh

Joined: 29/12/2007

Expert Level

Total Messages

1616

Contact Me (Offline)

x% by volume means x gm of solute in 100 cc of solution (i.e. 100d gm of solution)

Molarity = (x/Mo)/0.1

Molality = (x/Mo)* 1000/(100d-x)

Mole fraction of solute = (x/Mo)/(x/Mo + (100d-x)/1

Mole fraction of solvent = 1- mole fraction of solute

Cheers
Kulvinder Singh

Go to Forum:

Questions & Discussions » Chemistry Discussions