1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
2 years ago
7

In the experiment "Preparation and Standardization of a Sodium Hydroxide Solution", why was the burette rinsed with NaOH before

filling it to "zero" for the titration?
Chemistry
1 answer:
FromTheMoon [43]2 years ago
3 0

Answer: The correct option is ALL OF THE ABOVE.

Explanation:

TITRATION is a type of volumetric analysis which is used for determining the concentration of solutions. In this process a specific volume of a solution is placed in a conical flask by means of a pipette and small quantities of a second solution is slowly added from a burette until the end point is reached. This is determined by a means of an indicator which shows a characteristic colour change.

During titration, the following precautions should be followed to avoid errors and maintain standardisation in the experiment.

--> Any air bubble in the burette and pipette must be removed during measurement

--> the burette tap should be tightened to avoid leakage.

--> Remove the funnel from the burette before taking any reading to avoid errors in reading the volume.

--> use the base solution such as Sodium Hydroxide Solution to rinse the burette after washing with soap and tap water:

• to remove any air bubble and fill it's tip

• to remove any residual liquid from the water and soap solution which may interfere with the results of the experiment.

• to check if the burette is in good condition.

Therefore all of the above options to the question are correct.

You might be interested in
Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of
Klio2033 [76]

Answer:

It is the portion of internal energy that can be transferred from one substance to another.

Explanation:

Thermal energy is the energy obtained by an object due to the motion of its particles.

It is also known as internal energy as it is the energy within the particles due to their motion.

Therefore, we can conclude that it is the portion of internal energy that can be transferred from one substance to another.

Hope this helps!

3 0
3 years ago
Water can be a solid
Degger [83]

Explanation:

Transpiration: This is the evaporation of liquid water from plants and trees into the Earth's atmosphere. Nearly all water that enters the roots transpires into the atmosphere. Sublimation: This is the process where ice and snow (a solid) changes into a gas without moving through the liquid phase

3 0
3 years ago
Read 2 more answers
Nitrogen is used to keep food frozen during transportation.
Greeley [361]

Answer:

Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.

Explanation:

Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/

4 0
2 years ago
A helium balloon contains 16.9 L of helium at STP. How many atoms of helium are in the balloon
Zepler [3.9K]
4.54×10^(23) atoms He
8 0
2 years ago
Write einstein's equation that explains the energy from nuclear reactions. _________ use the caret symbol (^) to show an exponen
Katen [24]
I would say it should be Einstein's famous equation of e=mc^2 which means energy =mass x the speed of light squared. With this equation Einstein showed that energy comes from a mass travelling at the speed of light squared which is a fundamental equation to explain physical phenomena.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Correctly label the parts of the water cycle enter our answer in the space provided and include the question numbers
    11·1 answer
  • A piston containing 0.120moles of methane gas, CH4, has a volume of 2.12liters. If methane is added until the volume is increase
    6·1 answer
  • Given the incomplete equation for the combustion of ethane:
    8·2 answers
  • Why are hydrogen ions and hydroxide ions omitted from the net reaction for the hydrolysis of water?
    6·2 answers
  • What is the velocity of an car that travels 50 miles north, turns around and travels 50 miles south, in 5 hours? 2 mph south 5 m
    11·2 answers
  • What type of energy is carried by electrical charges as they move in a circuit?
    10·1 answer
  • Analysis of gas produced during combustion determined a compound contained 43.74% C, 3.14% H, 16.61% O A) What is the empirical
    11·1 answer
  • How do you use filtration to separate mixtures
    14·1 answer
  • I need help with science pls​
    6·1 answer
  • the carbon canisters are about the size of a 55-gallon drum, how often would replacement be required?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!