Which one has a greater concentration, 1 molar NaOH or 1 molal NaOH aqueous solution?

  • Thread starter xec
  • Start date
  • #1
xec
1
0
Which one has a greater concentration, 1 molar NaOH or 1 molal NaOH aqueous solution?
for the answer Explain Why!
 

Answers and Replies

  • #2
symbolipoint
Homework Helper
Education Advisor
Gold Member
6,964
1,592
The question needs some clarity. Do you need emphasis on moles or on mass of the solute? Once you establish this, next you must make reference based on comparable concentration units.
 
  • #3
Borek
Mentor
29,167
3,840
Calculate molality of 1M NaOH and molarity of 1m NaOH, everything should be clear then.

Note that you will need solution density for conversion. This has to be taken from density tables.

Symbolipoint is right in general, but wrong in this particular case :wink: Besides, looks to me like in practice it always works the same.
 
  • #4
symbolipoint
Homework Helper
Education Advisor
Gold Member
6,964
1,592
I forgot to account properly for the fact that the same solute (NaOH) is used in both liquids.

Borek commented:
Symbolipoint is right in general, but wrong in this particular case Besides, looks to me like in practice it always works the same.
 

Suggested for: Which one has a greater concentration, 1 molar NaOH or 1 molal NaOH aqueous solution?

  • Last Post
Replies
19
Views
1K
  • Last Post
Replies
3
Views
310
Replies
8
Views
1K
  • Last Post
Replies
3
Views
1K
Replies
1
Views
761
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
2
Views
1K
Replies
3
Views
673
  • Last Post
Replies
4
Views
1K
Top