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
6,101
1,152
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
28,600
3,078
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
6,101
1,152
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.
 

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

Replies
1
Views
6K
Replies
2
Views
60K
Replies
3
Views
5K
  • Last Post
Replies
4
Views
11K
Replies
6
Views
25K
  • Last Post
Replies
3
Views
3K
Replies
22
Views
4K
  • Last Post
Replies
9
Views
23K
  • Last Post
Replies
18
Views
48K
Top