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Ira Lisetskai [31]
3 years ago
11

What is the name for the point at which the indicator changes color in a titration?

Chemistry
1 answer:
zhannawk [14.2K]3 years ago
8 0
A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached.
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What shape is the s sublevel? *<br> sphere<br> freaky<br> peanut<br> daisy
Y_Kistochka [10]

Answer:

Sphere

Explanation:

The shape of the s-sublevel is spherical in shape.

This sublevel has an azimuthal quantum number of 0 and it is spherical in shape;

  • p - sublevel has a dumb-bell shape
  • d - sublevel has double dumb - bell shape
  • f - sublevel has a complex shape
3 0
2 years ago
Consider four different samples: aqueous LiBr , molten LiBr , aqueous AgBr , and molten AgBr . Current run through each sample p
Charra [1.4K]

Answer:

a) Aqueous LiBr = Hydrogen Gas

b) Aqueous AgBr = solid Ag

c) Molten LiBr = solid Li

c) Molten AgBr = Solid Ag

Explanation:

a) Aqueous LiBr

This sample produces Hydrogen gas, because the H+ (conteined in the water) has a reduction potential higher than the Li+ from the salt. Therefore the hydrogen cation will reduce instead of the lithium one and form the gas.

b) Aqueous AgBr

This sample produces Solid Ag, because the Ag+ has a reduction potential higher than the H+ from the water. Therefore the silver cation will reduce instead of the hydrogen one and form the solid.

c) Molten LiBr

In a molten binary salt like LiBr there is only one cation present in the cathod. In this case the Li+, so it will reduce and form solid Li.  

c) Molten AgBr

The same as the item above: there is only one cation present in the cathod. In this case the Ag+, so it will reduce and form solid Ag.  

6 0
3 years ago
Classify each of the following reactants and products as an acid or base according to the Bronsted theory: H3PO4 + C6H5O- &lt;=&
Alexxandr [17]

Answer:

H₃PO₄ is an acid because donates the proton to fenolate.

Fenolate is the base because accepts the proton from the acid.

Explanation:

Bronsted theory mentioned that acid is the one that donates a proton to another compound and base is the one that receives it.

H₃PO₄   +   C₆H₅O⁻    ⇄      H₂PO₄⁻      +       C₆H₅OH

acid              base              conj. base            conj. acid

H₃PO₄ is an acid because donates the proton to fenolate.

Fenolate is the base because accepts the proton from the acid.

If we follow the dissociation, the diacid phosphate can donate two more protons, it is still a Bronsted acid, but it can act as an acid or a base. This is called amphoteric.

6 0
3 years ago
2. I want to create a density bottle with 3 solutions called A, B and C. I put 45 ml of solution A
Tamiku [17]

Explanation:143

what i meant was thank you for the points but it is 143

4 0
2 years ago
What is the chemical formula for ammonium oxalate
prohojiy [21]
The chemical formula for ammonium oxalate is C2H8N2O4
6 0
3 years ago
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