Experiment Report: Concentration – Dilution of NaCl

Categories: Chemistry

Report, Pages 3 (569 words)

Views

1. Purpose

The purpose of this experiment is to ensure the proper execution of a basic laboratory procedure. Precision in measurement and calculation, as well as attention to detail, are crucial aspects of laboratory work. This experiment serves as a learning opportunity for students and aspiring scientists to develop precision and meticulousness in their work.

2. Abstract

Accurate execution of laboratory experiments is essential to obtain reliable results. This basic laboratory experiment involves the preparation of a 1 M solution of NaCl by mixing 100 ml of the solution with water.

Don't use plagiarized sources. Get your custom paper on

“ Experiment Report: Concentration – Dilution of NaCl ”

Get high-quality paper

NEW! smart matching with writer

Additionally, a 0.1 M MgS solution is prepared. The experiment includes both mass and volume measurements, utilizing equipment such as burettes, volumetric flasks, and pipettes. The aim is to teach students the importance of precision and accuracy in laboratory procedures.

3. Tools and Materials

Volumetric flasks: 100 mL, 25 mL
Beaker glass: 250 mL (2 pieces)
Erlenmeyer flask: 100 mL
Burette: 50 mL
Burette stand
Magnetic stirrer
Balance
Graduated pipette with pump: 10 mL
Funnel
Water
NaCl

4. Procedure

Before commencing the experiment, the mass of NaCl (0.5 M NaCl, 100 ml) is determined.

Bella Hamilton

Verified writer

Proficient in: Chemistry

5 (234)

“ Very organized ,I enjoyed and Loved every bit of our professional interaction ”

+84 relevant experts are online

Hire writer

The mass of MgS (0.1 M MgS, 25 ml) is also calculated using the following equations:

M1V1 = M2V2

Where:

M1 = Initial molarity (mol/L)
V1 = Initial volume (L)
M2 = Final molarity (mol/L)
V2 = Final volume (L)

The result of the NaCl mass is 2.922019 g.

For the first part of the experiment:

Measure 2.922019 g of solid sodium chloride (NaCl) using a balance.
Place the NaCl into a 250 ml beaker and add approximately 75 ml of water.
Dissolve the NaCl in water using a magnetic stirrer at 400 rpm.
Transfer 1 ml of the NaCl solution to a 25 ml volumetric flask.
Add 25 ml of water to the volumetric flask.

The result of the NaCl volume is 5 ml.

For the second part of the experiment, involving the burette:

Add water to a 250 ml beaker until it reaches the 0 ml mark on the burette.
Position an Erlenmeyer flask beneath the burette.
Dispense water from the burette until it reaches the 8.10 ml mark.
Deliver water from the burette until it reaches the 7.05 ml mark.
The final volume of the delivered water is 15.15 ml.

The proper technique for measuring solutions with a burette and volumetric flask is to read the volume from the bottom of the meniscus.

5. Discussion

Sodium chloride (NaCl) is composed of positive sodium ions bonded to negative chloride ions.

Get to Know The Price Estimate For Your Paper

Topic

Deadline: 10 days left

Number of pages

Email Invalid email

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy. We’ll occasionally send you promo and account related email

"You must agree to out terms of services and privacy policy"

Write my paper

You won’t be charged yet!

Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions, and the negative part of water molecules attracts the positive sodium ions.

Molarity (M), also known as molar concentration, represents the number of moles of a substance per liter of solution. The relationship between concentration, volume, and moles is described by the equation:

M = n / V

Where:

M = Molarity (mol/L)
n = Moles (mol)
V = Volume (L)

Dilution is the process of reducing the concentration of a solution by adding solvent. The formula for dilution is:

M1V1 = M2V2

Where:

M1 = Initial molarity
V1 = Initial volume
M2 = Final molarity
V2 = Final volume

Dilution can be achieved by adding a less concentrated solution to a more concentrated one or by adding solvent to decrease the concentration while keeping the amount of solute constant.

6. Conclusion

From the experiment conducted, it is evident that precision in measurement is essential in laboratory work. While human errors are inevitable, accuracy is crucial, especially in the initial calculations. Any mistakes during the experiment require repeating the entire procedure from the beginning to ensure reliable results.

Experiment Report: Concentration – Dilution of NaCl. (2024, Jan 05). Retrieved from https://studymoose.com/document/experiment-report-concentration-dilution-of-nacl