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
I am Lyosha [343]
3 years ago
7

Which statement is incorrect?

Chemistry
1 answer:
Katena32 [7]3 years ago
4 0

Answer:

e. When the indicator changes color and remains, 2 more drops of the solution in the buret should be added.

Explanation:

<em>Which statement is incorrect? </em>

<em>Select one: </em>

<em> a. The volume of solution in the buret should be recorded when the endpoint is reached. </em> CORRECT. At the endpoint, the titrant is expected to have completely reacted with the titrand.

<em>b. It is good practice to place the flask over a white background to better observe the color change of the solution.</em>  CORRECT. Using a white background makes it easier to detect the changes in the color of the indicator.

<em>c. The endpoint is when the indicator changes color.</em> CORRECT. This is the function of an indicator.

<em>d. Phenolphthalein will go from a colorless solution to a pink solution for the addition of NaOH to an acid solution.</em>  CORRECT. Phenolphthalein is colorless when pH < 8.3 and it is pink when pH > 10.0.

<em>e. When the indicator changes color and remains, 2 more drops of the solution in the buret should be added.</em> INCORRECT. When the endpoint is reached, no more titrant should be added.

You might be interested in
Highest ionization energy: Li, Be, B
Ad libitum [116K]

Hello!


On the periodic table, as we go down the periodic table, the ionization energy decreases, but as we go across the periodic table (left to right), the ionization increases.


On the periodic table, lithium (Li) is located in column one, beryllium (Be) is located in column two, and (B) boron is located in column 13. As stated above, when we go across the periodic table (left to right), the ionization increases.


Therefore, the element with the highest ionization energy is Boron, or symbol B on the period table.

3 0
3 years ago
Which of the following atoms are isotopes? 22Na 22Ne 22Na 22Mg 24Na
Dima020 [189]
Na22 and Na24 are isotopes 
8 0
3 years ago
For every action there is an equal and opposite reaction is known as? *
wolverine [178]

Answer:

Newton's third law

3 0
3 years ago
Read 2 more answers
10 divided by 2 im confused
Eddi Din [679]

if your serious about this question then it is 5

4 0
3 years ago
Read 2 more answers
An unknown compound a has the molecular formula c7h14o2. compound a absorbs strongly in the ir at 1700 cm-1. the 1h nmr spectral
scoundrel [369]
The structure of compound A would be solid that is dense enough for antimicrobial form
7 0
3 years ago
Read 2 more answers
Other questions:
  • What are the three main parts to an electrons “address” used in the current atomic theory that describe an electrons location?
    13·1 answer
  • What is a chemical reaction
    10·2 answers
  • Density Calculations
    12·1 answer
  • Which statements correctly match a chemical name with its formula? Use the list of polyatomic ions and the periodic table to hel
    10·2 answers
  • Why does thermal energy decreases when potassium is dissolved in water​
    8·1 answer
  • Arrange the species according to the oxidation state of nitrogen in each. Note that highest refers to the most positive oxidatio
    12·1 answer
  • HELLLPP QUICK WILL MARK BRAINLIEST
    5·2 answers
  • What is the element name for mg2SiO4
    8·2 answers
  • 1.25 is closer to 1.04 or not ?<br> plz heelp
    11·1 answer
  • What would be the effect on the boiling point if you decrease the pressure over a liquid?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!