CHM1011 - Chemistry I - S1 2025
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Which hybrid orbital has the angle of 109.5° for its covalent bonds?
Which hybrid orbital has the angle of 120° for its covalent bonds?
Results
Standardisation of Sodium Hydroxide
Titration Results:1000 μL aliquots of hydrochloric acid ( mol/L) against a sodium hydroxide solution
Please only fill in 3 concordant results!
| Titration number: | 1 | 2 | 3 | Error | ||
| Titre (mL) | ±0.10 mL |
Average (mean) volume of concordant titres: mL
Concentration of sodium hydroxide solution (to 4 sig figs): M
Quantity of Acetic Acid in Salad Dressing
Titration Results: 1000 μL aliquots of salad dressing against a sodium hydroxide solution
Please only fill in 3 concordant results!
| Titration number: | 1 | 2 | 3 | Error | ||
| Titre (mL) | ±0.10 mL |
Average (mean) volume of concordant titres: mL
Concentration of Acetic Acid (M) (to 3 sig figs): M
Concentration of Acetic Acid (as %w/v) (to 3 sig figs): %
Note: %w/v = (g / mL) x 100%
Please answer all parts of the question.
Laboratory Notes
Upload a single PDF file of your scanned laboratory notes here. Your demonstrator will also have made notes on the day of your experiment. You will receive a mark for your laboratory notes and how you operated in the laboratory based on the following rubric.
Name and student ID (partner/group members).
|
0.5
|
All results, data and observations recorded.
|
3
|
Experiment title and date recorded.
|
0.5
|
Punctuality to class.
|
1
|
Notes written in pen, neat and legible.
|
1
|
Good attitude and participation.
|
1
|
Method recorded in brief, including changes to experimental variables.
|
2
|
Good housekeeping (all glassware, reagents and apparatus cleaned up).
|
1 |
Which of the bonds
HCl, CF, LiBr, HSi, NaS
has the largest dipole moment?
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