answersLogoWhite

0


Best Answer

Did you mean 250 mL of 0.15 M Na2CO3? (It's impossible to make a 15 M Na2CO3 solution, as Na2CO3 is not that soluble.) Yes, you can assume that this will be an aqueous solution.

Steps.

1. Calculate the mass of solid Na2CO3 needed.

2. Place this mass of Na2CO3 in the volumetric flask.

3. Add some water and swirl to dissolve the Na2CO3.

4. Carefully add more water until the total volume of solution is 250 mL, as indicated by the line etched on the neck of the volumetric flask.

250 mL x 1 L x 0.15 mol Na2CO3 x 105.99 g Na2CO3 = 4.0 g Na2CO3 needed

........... 1000 mL ......... 1 L ..................1 mol Na2CO3

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you prepare 250ml 15m solution of naco3 in a volumetric flask do presume a solvent ie h20 but then you have to presume volumes and conc and because 15M wanted you cant use the flask to dilute?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

When and why did the gold rush end?

because they ran out of gold, i presume


What is a sentence with presume?

I presume that she will arrive on time for the meeting.


What is the verb for presume?

Presume is an action. Therefore the word is already a verb.Presumes, presuming and presumed are other verbs, depending on the tense.


How do you use the word persume in a sentence?

I presume that you were talking about Presume. Not persume , as it is incorrect.


Why does the minecraft ghast have tears?

Because of its looks, it looks sad. Like it is crying. That is what i presume


A sentence for presume?

Even though she knew him well, she did not want to presume how he felt about the situation. Presume is a verb.


What part of speech is the word presumed?

I presume that the word "presume" is a verb.


What is a sentence for presume?

Even though she knew him well, she was careful not to presume what he was thinking. He didn't want to presume he knew what would happen next.


Where is the biggest fan base for The Simpsons?

I would presume America simply because it's an American show.


What is the noun of presume?

The noun forms of the verb to presume are presumption and the gerund, presuming.


What happens if a solvent is added to a solution?

I presume from category that the question ask about the heat of dissolution. Assume the solvent and solution is at thermal equilibrium. Adding more solvent would yield change in interaction for non ideal solution and thus it could yield increase or decrease of temperature depend on the infinite heat of solution of the solute that we interested in. Adding more solvent would not yield temperature change for ideal solution.


What happens if more solvent is added to a solution?

I presume from category that the question ask about the heat of dissolution. Assume the solvent and solution is at thermal equilibrium. Adding more solvent would yield change in interaction for non ideal solution and thus it could yield increase or decrease of temperature depend on the infinite heat of solution of the solute that we interested in. Adding more solvent would not yield temperature change for ideal solution.