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
ANEK [815]
2 years ago
11

The indicator propyl red has a Ka of 3.3 X 10-6 . It is red at low pH and yellow at higher pH. What is the approximate pH range

over which it changes color
Chemistry
1 answer:
Alik [6]2 years ago
5 0

Answer:

4.48 - 6.48

Explanation:

A pH indicator works in a better way in a range of pH = pKa ± 1. That means we need to determine the pKa of the indicator propyl red to find the range over which it change its color. That is:

pKa = -log Ka

pKa = -log 3.3x10⁻⁶

pKa = 5.48

That means the range over propyl red will change from yellow to red or vice versa is:

4.48 - 6.48

You might be interested in
PLEASE HELP ASAP
Leni [432]

Answer:

the answer is B

Explanation:

the answer is B

4 0
2 years ago
Read 2 more answers
The diagram shows a plant cell.
Serga [27]

Answer:

B. structure 2

Explanation:

It represents nucleus which is the brain of the cell

7 0
2 years ago
Read 2 more answers
Be sure to answer all parts. Compounds a and b are isomers having molecular formula c5h12. Heating a with cl2 gives a single pro
Elden [556K]

Neo-pentane represents the Compound A while compound B is n-pentane.

After careful consideration we can say that compounds A and B are alkanes and also isomers of pentane. In chemistry, Isomers are defined as compounds having same empirical molecular formula but different structural formulas due to varying arrangement of atoms.

Now, as per the question statement, compound A gives a single monochlorination product upon heating with the molecule of chlorine i.e. Cl2 showing that the molecule is extremely symmetric. This molecule must be neo-pentane. Refer to image 1.

Similarly, Compound B forms 3 constitutional isomers after undergoing monochlorination. This compound must be n-pentane since three are 3 different types of carbon atoms in the structure. Refer to image 2.

If you need to learn more about neo-pentane click here:

brainly.com/question/20815247

#SPJ4

3 0
1 year ago
Read 2 more answers
How many moles of HCl are present in 1.30 L of a 0.50 M solution
Shtirlitz [24]

Answer:

0.65moles of HCl was produced

4 0
2 years ago
A compound accepts electrons from another substance to form a covalent bond. Which term best describes this
matrenka [14]

Answer:

A

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • X2SO3 Enter the group number of X. How do I find this? Chemistry
    12·2 answers
  • For every Pb+2 ion that is formed, how many Cl- ions are formed? (Refer to the reaction in the lesson above.)
    5·1 answer
  • Barium has a density of 3.59 g/cm
    7·1 answer
  • 5. You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second j
    5·1 answer
  • How many grams of sucrose, molecular mass 342.34 g/mol, are dissolved in water to make 500. ml of a 0.462 m solution?
    8·1 answer
  • Please , sorry if I'm asking too many questions
    13·1 answer
  • An example of a double displacement is
    8·1 answer
  • 7. What would the pH of soap be if its (OH-) = 1 x 10 M ?
    14·1 answer
  • Which of the following is an example of kinetic energy?
    5·2 answers
  • What 3 variables were changed in the pendulum experiment?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!