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
Alex73 [517]
3 years ago
13

5 H2O2(aq) + 2 MnO4-(aq) + 6 H+(aq) → 2 Mn2+(aq) + 8 H2O(l) + 5 O2(g) In a titration experiment, H2O2(aq) reacts with aqueous Mn

O4-(aq) as represented by the equation above. The dark purple KMnO4 solution is added from a buret to a colorless, acidified solution of H2O2(aq) in an Erlenmeyer flask. (Note: At the end point of the titration, the solution is a pale pink color.) Which element is being oxidized during the titration, and what is the element’s change in oxidation number?
Chemistry
1 answer:
Tomtit [17]3 years ago
8 0

Answer:

Oxygen in hydrogen peroxide oxidizes from -1 to 0.

Explanation:

Oxidation is the loss of electrons. The specie which is oxidized has has elevation in its oxidation state as compared in the reactant and the products.

The given reaction is shown below as:

5 H_2O_2_{(aq)} + 2 MnO_4^-_{(aq)} + 6 H^+_{(aq)}\rightarrow 2 Mn^{2+}_{(aq)} + 8 H_2O_{(l)} + 5 O_2_{(g)}

Manganese in MnO_4^- has oxidation state of +7

Manganese in Mn^{2+} has an oxidation state of +2

It reduces from +7 to +2

Oxygen in hydrogen peroxide has an oxidation state of -1.

Oxygen in molecular oxygen has an oxidation of 0.

Thus, oxygen in hydrogen peroxide oxidizes from -1 to 0.

You might be interested in
Help me and explain steps
Pachacha [2.7K]

Answer:

<u>2</u> Fe + <u>3</u> H2SO4 —> Fe2(SO4)3 + <u>3</u> H2

I hope I helped you^_^

3 0
2 years ago
What is the formula mass for sodium chloride?
Zigmanuir [339]
Atomic mass of sodium is 22.9 g/mol
atomic mass of chloride is 35.45 g/mol
sodium chloride is 22.99 + 35.45= 58.44 g/mol
3 0
3 years ago
If I have 12.0 volume of gas at pressure of 1.10 and temperature of 200k, what is the number of moles? (R=8314)
arsen [322]

Answer:

7.94 x 10^6 mol

Explanation:

PV=nRT

n=(PV)/(RT)

n=(1.10*12.0)/(8314*200)

n=7.94 x 10^6 mol

5 0
3 years ago
Which statement describes a chemical property of water?
anygoal [31]
<span>The chemical description of water is H2O, which means, it is composed of 2 hydrogen atoms and 1 oxygen atom. The answer to this item is the fourth option, " It is clear and colorless." When water is added with calcium, clear, colorless bubbles are formed. This explains a reaction of water with acid. The following are additional facts about water properties: Density: 1 g/cm³ Boiling point: 100 °C Molar mass: 18.01528 g/mol Melting point: 0 °C Formula: H2O</span>
7 0
2 years ago
Read 2 more answers
Which of the following sets of inputs and outputs can be used to describe photosynthesis?
Cerrena [4.2K]
I believe it is C, but I can't guarantee it.
4 0
3 years ago
Other questions:
  • Transition metal elements are in the "d block" on the periodic table, because the electron configuration of every transition met
    14·2 answers
  • How can i prove that nascent oxygen more reactive than normal oxygen ?
    10·1 answer
  • Convert 1.422g/cm^2 to mg/mm^2
    10·1 answer
  • The ph of lemon juice is approximately 2.4. at this ph, the hydronium ion concentration is closest to which value? 1. 250 m 2. 4
    11·2 answers
  • Your neighbor Mr. Turner doesn't think that alternative energy resources like water, wind, or solar are important. "Why not just
    6·2 answers
  • 2. The temperature of a gas is increased from 125⁰C to 182⁰C inside of a rigid container. The original pressure of the gas was 1
    10·2 answers
  • Some plants have fleshy stems and leaves that can store water. In which type of habitat would these adaptations be important
    10·1 answer
  • Reasons and how we arrange elements according to their positions in the electrochemical series​
    12·1 answer
  • ____________ rays show areas where large quantities of energy are released.
    5·1 answer
  • What is the mass in grams of Al that were reacted with excess HCl if 2.12 L of hydrogen gas were collected at STP in the followi
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!