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
devlian [24]
3 years ago
9

You have one test tube which contains a colorless solution that is either Cu+2 (aq) or Bi+3(aq). Select a reagent that will allo

w you to differentiate between the two chemical species. If the solution is Cu+2, what will happen when the reagent is added? If the solution is Bi+3, what will happen when the reagent is added?
Chemistry
1 answer:
Jlenok [28]3 years ago
8 0

Answer:

Explanation:

You can use KI and K4[Fe(CN)6].

When you add KI in a solution with only Cu2+ nothing will happen, but when you add K4[Fe(CN)6] it will form a solid of Cu2[Fe(CN)6] that will be reddish-brown.

When you add K4[Fe(CN)6] in a solution with only Bi3+ nothing will happen, but when you add KI it will form a solid of BiI3 that will be black.

So in a solution which contains both of then, you can add KI to determinate Bi3+, if you see a black solid. If nothing happens, you can affirme that it contains Cu2+.

You might be interested in
Consider the following intermediate chemical equations. When you form the final chemical equation, what should you do with CO? C
-Dominant- [34]

Answer:

Cancel out CO because it appears as a reactant in one intermediate reaction and a product in the other intermediate reaction.

Explanation:

The CO appears twice hence in he intermediate reaction it only forms path of the enabling reagents and it further reacts to form the final product. Accounting for the CO in the intermediate reaction that undergoes further reaction will impact on the stoichiometry of the reaction.

5 0
3 years ago
When 2.5 g of blue copper(ii) sulfate crystals were heated, 1.6 g of a white solid were left in tube A
Zinaida [17]

Answer:

b po answerpa brainlest

8 0
3 years ago
To determine the concentration of SO4 2– ion in a sample of groundwater, 100.0 mL of the sample is titrated with 0.0250 M Ba(NO3
Brrunno [24]

Answer:

1.87x10⁻³ M SO₄²⁻

Explanation:

The reaction of SO₄²⁻ with Ba²⁺ (From Ba(NO₃)₂) is:

SO₄²⁻(aq) + Ba²⁺(aq) → BaSO₄(s)

<em>Where 1 mole of  SO₄²⁻ reacts per mole of Ba²⁺</em>

<em />

To reach the end point in this titration, we need to add the same moles of Ba²⁺ that the moles that are of SO₄²⁻.

Thus, to find molarity of SO₄²⁻ we need to find first the moles of Ba²⁺ added (That will be the same of SO₄²⁻). And as the volume of the initial sample was 100mL we can find molarity (As ratio of moles of SO₄²⁻ per liter of solution).

<em>Moles Ba²⁺:</em>

7.48mL = 7.48x10⁻³L ₓ (0.0250moles / L) = 1.87x10⁻⁴ moles of Ba²⁺ = Moles of SO₄²⁻

<em>Molarity SO₄²⁻:</em>

As there are 1.87x10⁻⁴ moles of SO₄²⁻ in 100mL = 0.1L, molarity is:

1.87x10⁻⁴ moles of SO₄²⁻ / 0.1L =

<h3> 1.87x10⁻³ M SO₄²⁻</h3>
8 0
3 years ago
What are bacteria I don't get what bacteria is so what is bacteria?
mafiozo [28]
Bacteria is single-celled microorganisms. Bacteria have different shapes and can cause diseases.
6 0
3 years ago
Read 2 more answers
What is the cell membrane mostly made of
dexar [7]

Answer:

Lipids and protein.

Explanation:

The cell membrane is mostly made up of lipids and protein. It is made up of other things, but it is mostly made up of those.


I hope it helps! Have a great day!
bren~

7 0
2 years ago
Read 2 more answers
Other questions:
  • The following characteristics describe which of these terms? The substance is mixed uniformly throughout and each part of the su
    8·2 answers
  • how chemicals are used withing the chemical making process. What role do chemical engineers play in the final product?
    9·1 answer
  • What happens in a Lewis acid-based reaction
    14·2 answers
  • What is the molar mass of a substance?
    7·2 answers
  • What reagent is used to test for the presence of indole?
    13·1 answer
  • How do you think you can use the calorimeter to compare the specific heat capacities of a substance?
    13·1 answer
  • An atom of oxygen has six valence electrons. In nature, oxygen is a diatomic molecule and is usually found in the form O2. Why w
    6·1 answer
  • Sunlight Grass → Rabbit + Snake
    8·2 answers
  • 2. The approximate concentration of hydrochloric acid, HCl, in the stomach (stomach
    8·1 answer
  • What volume of SO2, at room temperature and pressure is produced on heating 9.7g
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!