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
serious [3.7K]
3 years ago
8

A student did not read the direction to the experiment properly and mixed up where to place the NaOH solution and the vinegar. H

e put the vinegar in the titrator and the measured amount of NaOH in the beaker. He then added a drop of the phenolphthalein to the solution in the beaker. Does the student need to empty out all the solutions and start over again or can he/she go ahead and run the titration? If he/she run the titration using the solutions as given above, what should he/she expect to see happen for the result?
Chemistry
1 answer:
Mariana [72]3 years ago
3 0

Answer:

At end point there will a transition from pink to colorless.

Explanation:

As the student put the vinegar in the titrator and NaOH in the beaker, it means that he has poured phenolphthalein in the NaOH solution.

The pH range of phenolphthalein is 8.3-10 (approx), it means it will show pink color in basic medium.

So on addition of phenolphthalein in NaOH the solution will become pink in color.

When we start pouring vinegar from titrator neutralization of NaOH will begin.

On complete neutralization , on addition of single drop of vinegar the solution will become acidic and there will be complete disappearance of pink color solution in the beaker.

You might be interested in
Which of the following causes high and low tides on Earth? A. The moon's gravitational pull on Earth causes water to bulge on tw
Finger [1]
A. the moon's gravitational pull on earth causes water to bulge on two sides of the earth
5 0
3 years ago
Read 2 more answers
Help please lol I’m stuggling
Mazyrski [523]

Answer:

balenced

Explanation:

6 0
3 years ago
How any moles of H2O will be produced from 12.3 moles of HCL reacting with Ca(OH)2?
stiks02 [169]

Answer:

\large \boxed{\text{12.3 mol HCl}}  

Explanation:

We need a balanced chemical equation with moles.

            2HCl +Ca(OH)₂ ⟶ CaCl₂ + 2H₂O

n/mol:    12.3

The molar ratio is 2 mol H₂O:2 mol HCl.

\text{Moles of H$_{2}$O} = \text{12.3 mol HCl} \times \dfrac{\text{2 mol H$_{2}$O}}{\text{2 mol HCl}} = \textbf{12.3 mol HCl}\\\\\text{The reaction produces $\large \boxed{\textbf{12.3 mol HCl}}$}

3 0
3 years ago
Which sample would serve as a better buffer and therefore a better environment for aquatic life?
Ann [662]

Answer:

sample A

Explanation:

the first one because of the ppm value

6 0
2 years ago
Read 2 more answers
How does body temperature, energy level, and water level affect a person’s ability to survive?
kifflom [539]
U won’t get hyperthermia or a heat stroke when ur hot u use up more energy but when ur cold u use up less
4 0
3 years ago
Other questions:
  • In a rate law, the rate constant, k, depends on which condition
    12·1 answer
  • What allows electricity to be conducted when dissolved in water
    13·1 answer
  • Select the correct answer.
    7·1 answer
  • Identify the trend in bond length of the hydrogen-halide molecule and explain why it exists.​
    13·1 answer
  • You need to make an aqueous solution of 0.243 M iron(III) chloride for an experiment in lab, using a 125 mL volumetric flask. Ho
    10·1 answer
  • In a pure metal, the electrons can be thought of as [ Select ] throughout the metal. Using molecular orbital theory, there [ Sel
    7·1 answer
  • In a classical long run supply model the economy is always doing what
    12·1 answer
  • What is the volume in (a) liters and (b) cubic yards of a room that is 10. meters wide by 15 meters long and 8.0 ft high?
    13·1 answer
  • Which of the following pair has a larger size? a)K or K- b)Br or Br- c)O2- or F- d) Li or Na​
    6·1 answer
  • A The birthrate is higher than the death rate.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!