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
galina1969 [7]
3 years ago
10

why is it better to use several trials of a titration rather than one trial to determine the concentration of a solution of unkn

own concentration?
Chemistry
1 answer:
svlad2 [7]3 years ago
6 0
Because you are never 100% precise during the work, so it's best and most accurate answer is always the average of more trials. basically the more you do, the more accurate the answer shall be 
You might be interested in
A certain half-reaction has a standard reduction potential +0.80 V . An engineer proposes using this half-reaction at the anode
Strike441 [17]

Answer:

a. Minimum 1.70 V

b. There is no maximum.

Explanation:

We can solve this question by remembering that the cell potential is given by the formula

ε⁰ cell = ε⁰ reduction -  ε⁰  oxidation

Now the problem states the cell must provide at least 0.9 V and that the reduction potential of the  oxidized species  0.80 V, thus

ε⁰ reduction -  ε⁰  oxidation ≥  ε⁰ cell

Since ε⁰  oxidation is by definition the negative of ε⁰ reduction , we have

ε⁰ reduction - ( 0.80 V )  ≥  0.90 V

⇒ ε⁰ reduction  ≥ 1.70 V

Therefore,

(a) The minimum standard reduction potential is 1.70 V

(b) There is no maximum standard reduction potential since it is stated in the question that we want to have a cell that provides at leat 0.9 V

8 0
3 years ago
HURRY I WILL GIVE YOU BRAINLIEST
Amiraneli [1.4K]

dim? im not so fluent in this but i did research yesterday

6 0
3 years ago
I need helpppp will pay anything !!
nydimaria [60]

Answer: iss as kfnandn

Explanation:

7 0
2 years ago
How many moles of glucose are in 19.1g of glucose?​
Crank

Answer:

0.106 mol (3s.f.)

Explanation:

To find the number of moles, divide the mass of glucose (in grams) by its Mr. Glucose has a chemical formula of C6H12O6. To find the Mr, add all the Ar of all the atoms in C6H12O6.

Ar of C= 12, Ar of H= 1, Mr of O= 16

These Ar values can be found on the periodic table.

Mr of glucose= 6(12)+ 12(1) + 6(16)= 180

Moles of glucose

= mass ÷ mr

= 19.1 ÷ 180

= 0.106 mol (3 s.f.)

3 0
3 years ago
A 5.0 L sample of gas is collected at 400. mmHg at 727 C. What is the volume if the temperature were cooled to 77 C and the pres
saul85 [17]

Answer:

u will equate and make V2 the subject because it's the one u are looking for ....

5 0
3 years ago
Other questions:
  • Which of the following pairs are opposing terms? Superior/posterior Superior/inferior Anterior/inferior Superior/anterior
    11·1 answer
  • According to the animation, what does the electron transport chain do to the concentration of hydrogen ions (protons)
    7·1 answer
  • In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. Which postulate of ki
    5·1 answer
  • In a certain crystalline material the vacancy concentration at 25 c is one-fourth that at 80
    15·1 answer
  • The graph shows the distribution of energy in the particles of two gas samples at different temperatures, T1 and T2. A, B, and C
    10·1 answer
  • What question could be asked to help determine whether the solar system is heliocentric or geocentric?
    9·1 answer
  • In the equation N2(g) + 3H2(g)--- 2NH3(g), how many liters of hydrogen
    6·2 answers
  • Can someone please describe what they’re seeing in this picture?
    10·1 answer
  • Anyone wanna hear a story about my bratty little sister?
    13·2 answers
  • A tire at 21°c has a pressure of 0.82 atm. its temperature decreases to –3.5°c. if there is no volume change in the tire, what i
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!