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
tester [92]
3 years ago
8

It is common for students to overshoot the endpoint, meaning they add too much NaOH(aq) from the buret, which causes the solutio

n to turn bright pink. What specific impact does this mistake have on the percent of acetic acid result?
Chemistry
1 answer:
umka2103 [35]3 years ago
8 0

Answer: the percentage of acetic acid will be low.

Explanation: The major aim during titration of acids and bases is to  determine the endpoint , that is exact point where the acid  in the beaker changes colour, (in this case, pink )with an additional  drop from the burette containing the base, since it is usually difficult to mark the equivalence point that tells us when  all the substrate in the beaker has been neutralized completely with the buretted substance.

Overshooting the end point is  an error which can occur when the person involved in the  the titration accidently goes beyond this  endpoint by adding too much of the substance(base) from the burette into the beaker missing the exact endpoint.

This implies that the person  has  added too much of the burreted liquid, ie the base than required  , making the acid in the beaker to continue to react resulting  to a lower concentration of the acid (acetic acid)  with excess base.(NaOH)

You might be interested in
How many atoms below?
zlopas [31]

Answer:

44

Explanation:

6 0
3 years ago
A certain liquid X has a normal boiling point of 108.30 °C and a boiling point elevation constant Kb=1.07 °C kg/mol. A solution
Fynjy0 [20]

Answer:

34,6g of (NH₄)₂SO₄

Explanation:

The boiling-point elevation describes the phenomenon in which the boiling point of a liquid increases with the addition of a compound. The formula is:

ΔT = kb×m

Where ΔT is Tsolution - T solvent; kb is ebullioscopic constant and m is molality of ions in solution.

For the problem:

ΔT = 109,7°C-108,3°C = 1,4°C

kb = 1.07 °C kg/mol

Solving:

m = 1,31 mol/kg

As mass of X = 600g = 0,600kg:

1,31mol/kg×0,600kg = 0,785 moles of ions. As (NH₄)₂SO₄ has three ions:

0,785 moles of ions×\frac{1(NH_{4})_{2}SO_{4}}{3Ions} = 0,262 moles of (NH₄)₂SO₄

As molar mass of (NH₄)₂SO₄ is 132,14g/mol:

0,262 moles of (NH₄)₂SO₄×\frac{132,14g}{1mol} = <em>34,6g of (NH₄)₂SO₄</em>

<em></em>

I hope it helps!

7 0
3 years ago
The gas in a sealed container has an absolute pressure of 125.4 kilopascals. If the air around the container is at a pressure of
AlexFokin [52]

Answer: C. 25.6 kPa

Explanation:

The Gauge pressure is defined as the amount of pressure in a fluid that exceeds the amount of pressure in the atmosphere.

As such, the formula will be,

PG = PT – PA

Where,

PG is Gauge Pressure

PT is Absolute Pressure

PA is Atmospheric Pressure

Inputted in the formula,

PG = 125.4 - 99.8

PG = 25.6 kPa

The gauge pressure inside the container is 25.6kPa which is option C.

4 0
3 years ago
Which type of chemical reaction occurs in Ca+CI2 CaCI2
dimaraw [331]
Ca + Cl2 = CaCl₂


A synthesis <span>reaction.</span>
3 0
3 years ago
what is the formula used to find the heat energy for vaporization heat energy for fusion hrat energy for liquid
Alinara [238K]

Answer:

Use the formula q = m·ΔHv in which q = heat energy, m = mass, and ΔHv = heat of vaporization.

Explanation:

:)

8 0
2 years ago
Other questions:
  • Elements found to the left of the metalloids on the periodic table display which properties? Select all that apply.
    15·2 answers
  • Without doing any calculations, determine which mass is closest to the atomic mass of carbon. without doing any calculations, de
    11·1 answer
  • Calculate the mass of a 0.255-ml sample of a liquid with density 0.660 g/ml.
    8·1 answer
  • Which unit is used for measuring atomic mass?
    9·1 answer
  • What element marks the boundary between using fusion and fission to release energy?
    6·1 answer
  • Why is it important to use fine adjustment when focusing with the high power on a microscope?
    14·1 answer
  • What type of soil is found in the desert, the tundra, the tropical forest, and the temperate
    7·1 answer
  • How much energy must be absorbed by 45.0g of water to increase its temperature from 83 0°C to 303.0°C?
    13·1 answer
  • How to calculate the density of a substance
    13·2 answers
  • Define each of the following wave phenomena, and give an example of where each occurs: (a) refraction;
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!