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
katovenus [111]
2 years ago
9

What happens when The vapour obtained by dropping conc. H2SO4 in a mixture of KI and MnO2 is treated with hypo solution​

Chemistry
1 answer:
Shalnov [3]2 years ago
6 0

Iodine is decolorized.

The first reaction stated in the question occurs as follows;

2 KI (aq) + 2 H2SO4 (aq) + MnO2 (s) → MnSO4 (aq) + K2SO4 (aq) + I2 (s) + 2 H2O (l)

The reaction here is the formation of iodine from MnO2 and KI in the presence of dropwise H2SO4.

Hypo is the common name of sodium thio-sulphate or sodium hypo-sulfite.

The equation of the titration reaction is;

2Na2S2O3 + I2→ Na2S4O6 + 2NaI

When this reaction takes place, iodine is decolorized due to its reduction to I^-.

You might be interested in
15-9+6+3 =? What's the answer of this? ​
julia-pushkina [17]
15-9+6+3=

ANSWER

15
6 0
3 years ago
Matter can undergo chemical reactions and nuclear reactions. Which statement is true only for nuclear reactions?
Irina18 [472]

Answer:

B - The energy of reactants is conserved.

D - the nuclei of atoms changes completely ( if that's the option)

6 0
1 year ago
SOMEBODY PLEASE HELP MEE !!!
Angelina_Jolie [31]
Ok the first one (C) for all of the answers is 6 and for the seconds one (Ca) the answers are 20
5 0
2 years ago
Consider this reaction: NH4 HPO42− → NH3 H2PO4− Which is the Bronsted-Lowry acid ? NH4 HPO42- HPO42– H2PO4–.
kvv77 [185]

Bronsted - Lowry acid in the given reaction is NH₄, as it gives H⁺ ion.

<h3>What is Bronsted - Lowry acid?</h3>

According to the theory of Bronsted - Lowry, acids are those substances which gives H⁺ ion or proton in the aqueous medium.

Given chemical reaction is :

NH₄ + HPO₄²⁻ → NH₃ + H₂PO₄⁻

In the above reaction NH₄ is the Bronsted - Lowry acid as it gives H⁺ ion in the reaction and changes to NH₃ which is the conjugate base of NH₄. Whereas HPO₄²⁻ is the  Bronsted - Lowry base as it accepts the H⁺ ion to form H₂PO₄⁻ which is the conjugate acid of it.

Hence, option (1) is correct, i.e. NH₄ is the Bronsted - Lowry acid.

To know more about Bronsted - Lowry acid, visit the below link:

brainly.com/question/1435076

8 0
2 years ago
The first step in the reaction of Alka–Seltzer with stomach acid consists of one mole of sodium bicarbonate (NaHCO3) reacting wi
Gnesinka [82]

Answer: 5 moles of  H_2CO_3 can be produced from 5 mol NaHCO3 and 9 mol HCl.

Explanation:

The balanced chemical reaction is:

NaHCO_3+HCl\rightarrow H_2CO_3+NaCl

According to stoichiometry :

1 mole of NaHCO_3 use 1 mole of HCl

Thus 5 moles of NaHCO_3 use=\frac{1}{1}\times 5=5moles  of HCl

Thus NaHCO_3 is the limiting reagent as it limits the formation of product and HCl is the excess reagent.

As 1 mole of NaHCO_3 give = 1 mole of H_2CO_3

Thus 5 moles of NaHCO_3 give =\frac{1}{1}\times 5=5moles  of H_2CO_3

5 moles of  H_2CO_3 can be produced from 5 mol NaHCO_3 and 9 mol HCl.

8 0
2 years ago
Other questions:
  • Which of the following is false regarding supersonic speed?
    10·1 answer
  • Which of the following does not participate in, nor is a component of, the electron transport chain? (Remember that molecules ca
    8·1 answer
  • Members of a species can mate with each other and produce
    15·1 answer
  • Light travels at roughly 3.00×108ms. What is this speed in miles per minute? Use 1mi=1609.344m and 60s=1min.
    10·1 answer
  • The photo shows the San Andreas fault zone. This is a fault formed at a transform boundary.
    14·2 answers
  • Predict the shift in equilibrium position that will occur for each of the following reactions when the volume of the reaction co
    15·1 answer
  • A major component of gasoline is octane C8H18. When liquid octane is burned in air it reacts with oxygen O2 gas to produce carbo
    15·1 answer
  • Which can occur in a physical change?<br> The mass can increase
    10·1 answer
  • 13. "The business of America is business.” — President Calvin Coolidge.
    15·1 answer
  • Calcium propionate [Ca(CH₃CH₂COO)₂; calcium propanoate] is a mold inhibitor used in food, tobacco, and pharmaceuticals.(a) Use b
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!