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
liberstina [14]
3 years ago
14

What color would a bromocresol green solution be at ph=7 ?

Chemistry
1 answer:
Sliva [168]3 years ago
8 0
Bromocresol Green belongs to a class of dyes called as <span>Sulfonephthaleins. This dye imparts different colours at different pH's.

Colors at different pH:
</span>                                   Bromocresol Green has a transition pH range between 3.8 and 5.4.

Color Below pH 3.8:
                                Bromocresol Green imparts Yellow color below pH 3.8.

Color Above pH 5.4:
                                Bromocresol Green imparts Blue color above pH 5.4.

Due to different colors at different pH this compound is used at Indicator in quantitative analysis techniques like Titration.

Result:
           Bromocresol Green will give Blue color at pH 7.
You might be interested in
Why can’t we go to the center of the Earth?
Mandarinka [93]

Answer:

The reason why we don't fall  to the center the earth is the same reason why we don't fall to the floor when you sit down in a chair; the electrons in your body repel the electrons in the chair. More specifically, there is an electron cloud around each nucleus.

Explanation:

4 0
3 years ago
What is the balance equation for <br> _AI+_Pb(NO3)2—__Pb+__Ca(NO3)2
Firdavs [7]

Answer:

2 Al + 3 Pb(NO3)2 > 2 Al(NO3)3 + 3 Pb

Explanation:

4 0
3 years ago
Would the amount of solid magnesium increase decrease or stay the same if you added a strong acid to it?
Vlada [557]
Solid Magnesium is considered as active metal so it reacts with strong acids like HCl and H₂SO₄ liberating Hydrogen gas according to the following equations:

Mg(s) + 2 HCl(aq) → MgCl₂(aq) + H₂(g)
Mg(s) + H₂SO₄(aq) → MgSO₄(aq) + H₂(g)

so the amount of solid magnesium decrease  by addition of strong acid to it.
8 0
3 years ago
FREE BRAINLIST NEED HELP ASAP
mixas84 [53]
Sulfur.
there’s no neutrons and 16 protons
7 0
2 years ago
Need help asap!
Scilla [17]

Answer: 1.  C. polar covalent: electrons shared between silicon and sulfur but attracted more to the sulfur

2. B)  NH_3

3. B) Fluorine

Explanation:

1. A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms.

Electronegativity difference = electronegativity of sulphur- electronegativity of silicon = 2.5 -1.8 = 0.7

Thus as electronegativity difference is less than 1.7 , the cond is polar covalent and as electronegativity of sulphur is more , the electrons will be more towards sulphur.

2. A molecular compound is usually composed of two or more nonmetal elements. Example: NH_3

Ionic compound is formed by the transfer of electrons from metals to non metals. Example: Mg_3N_2 , AlCl_3 and LiBr

3.  For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here K is having an oxidation state of +1 and as the compound formed is KZ, the oxidation state of non metallic element Z should be -1. Thus the element Z is flourine which exists as diatomic gas F_2

4 0
2 years ago
Other questions:
  • Please help it’s due today <br> :(
    11·1 answer
  • What are the products of this chemical equation? HCl(aq) + NaOH(aq) → NaCl(aq) + H2(g) + O2(g) NaH(aq) + Cl2(aq) + H2(g) + O2(g)
    11·2 answers
  • You have 125.0mL of a solution of H3PO4, but you don't know its concentration. If you titrate the solution with a 4.56M solution
    7·1 answer
  • When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle
    5·2 answers
  • Consider the general reversible reaction. Lower A upper A plus lower B upper B double-headed arrow lower C upper C plus Lower d
    8·1 answer
  • What is the highest energy level of an atom with 37 electrons
    14·1 answer
  • Please help me on this if you dont mind
    10·1 answer
  • Help Please! its another cell functions
    15·2 answers
  • Hikers noticed that a sealed bag of potato chips puffs up when taken to the top of a mountain. Suppose that at the valley floor
    10·1 answer
  • Calculate the grams of so2 gas present at stp in a 5. 9 l container. (atomic weights: s=32, o=16).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!