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In: Chemistry

A student carried out the experiment "Ways to Express Concentration" and obtained the following data expressed...

A student carried out the experiment "Ways to Express Concentration" and obtained the following data expressed in the table.
used solute and molar mass: NaCl (58.44 g / mol)
volume and concentration aqueous solution originally prepared: 500.00mL 2.50M
Empty tube mass: 147.85g
Tube mass with solution: 150.95g
Tube mass with residue: 149.03g
volume of solution used: 2.000mL
1. Residual mass?
2. Mass solution?
3. Solvent mass?
4. Moles of solute?
5. Moles solvent?
6. The calculated molarity of the solution is:
7. The molar fraction of the solvent is:
8. The percent by mass of solute is:
9. What are the colligative properties?
10. What were the substances used in the "Descent in Melting Point" experiment?
11. How is molar mass determined from data from a melting / freezing drop experiment?

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Expert Solution

queen_honey_blossom answered 11 months ago
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