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
prohojiy [21]
3 years ago
5

Which indicator is yellow in a solution with a pH of 9.8?

Chemistry
2 answers:
Vlada [557]3 years ago
8 0
It's the Methyl Orange. 
at about 4.4 pH, it changes from red to Yellow, to indicate an acid solution.
This pH indicator is normally used in titration of acids.

Hope this Helps :)
Mama L [17]3 years ago
6 0

Answer:

1) Methyl orange

Explanation:

Acid base indicators are solutions of certain dyes that bring about a color change at a certain pH i.e. the at a particular H+ ion concentration.

The color change and the pH range for the four indicators mentioned in the question are as follows:

 indicator                            pH range             color change

1. Methyl orange                  3.2-4.4                 red-yellow

2. Bromothymol blue           6.0-7.6                yellow-blue

3. Bromocresol green          3.8-5.4                yellow-green

4. Thymol blue                      8.0-9.6               yellow-blue

Based on the above data, only methyl orange is yellow at pH above 4.4. Hence,  indicator is yellow in a solution with a pH of 9.8 is methyl orange

You might be interested in
How do you describe the particles in a liquid? ​
Anastasy [175]

Answer:

The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other.

Explanation:

5 0
3 years ago
Read 2 more answers
A Carnot cycle operates between the temperatures limits of 400 K and 1600 K, and produces 3600 kW of net power. The rate of entr
TiliK225 [7]

The rate of entropy change:

The rate of entropy change of the working fluid during the heat addition process is 3 kW/K

What is the Carnot cycle?

  • The Carnot Cycle is a thermodynamic cycle made up of reversible isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression processes in succession.
  • The ratio of the heat absorbed to the temperature at which the heat was absorbed determines the change in entropy.

The entropy of a system:

The rate of heat addition is expressed as,

Q = \frac{WT_{H}}{T_{H}- T_{L}}

The entropy of a system is a measure of how disorderly a system is getting. The rate of entropy generation during heat addition is,

S_{gen} = \frac{Q}{T_{H}} = \frac{W}{T_{H} - T_{L}}

Calculation:

<u>Given:</u>

T_{L} = 400K

T_{H} = 1600K

W = 3600 kW

Put all the values in the above equation, and we get,

S_{gen} = \frac{W}{T_{H} - T_{L}} = \frac{3600}{1600-400} = 3 kW/K

The rate of entropy change is 3 kW/K

Learn more about the Carnot cycle here,

brainly.com/question/13002075

#SPJ4

3 0
2 years ago
In TEN complete sentences, describe how the LAW OF CONSERVATION applies to the stuff YOU OWN. For example: In real life, can new
satela [25.4K]

Answer:

Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and type of atoms after the chemical change as were present before the chemical change.

Explanation:

The atoms that make up your body were produced inside a star and have ... I read once that atoms get recycled so much through the planet that each of ... from William Shakespeare, but I do know this: All of us come from stars. ... If you have gold fillings in your teeth, those atoms came from a star explosion.

6 0
3 years ago
If i have an 86 and i don’t do a 50 point assignment, what will my grade be in the class?
nexus9112 [7]
Well you are at a 86% so t<span>his is considered a "B" grade on an average grade scale. If you take 50 points we would need to know the Total point you could have got in that class to be able to see how much a percent was the assignment work and then take that percentage of the assignment and subtract it from the 86% to see where on the scale you would fall in after the assignment points were taken off.   Hope this helps :)
</span>
7 0
3 years ago
What happens when air moves from an area of high pressure to an area of low pressure?
tino4ka555 [31]

Answer: The answer is D. wind is created. :)

8 0
3 years ago
Read 2 more answers
Other questions:
  • How many valence electrons does O-2 have?
    8·2 answers
  • International system of units in a sentence
    6·1 answer
  • What mass of calcium hydroxide is formed when 10.0g of calcium oxide reacts with 10.0g of water?
    6·1 answer
  • Identify the intermolecular forces present in each of these substances nh3 hcl co co2
    15·2 answers
  • Lionel places red blood cells in a beaker of pure water, and then he observes their
    15·1 answer
  • The number of protons in an atom is known as its atomic
    5·1 answer
  • BRAINLIESTTT !!! Pls help ASAP !!!! How does plasma state of matter interact with other matter?
    12·1 answer
  • Calculate the percent error in the atomic weight if the mass of a Cu electrode increased by 0.4391 g and 6.238x10-3 moles of Cu
    15·1 answer
  • The process by which organisms makes more<br> organisms like themselves is called
    13·2 answers
  • Elements can be identified by their
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!