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
balandron [24]
3 years ago
12

Consider the following reaction:

Chemistry
1 answer:
adell [148]3 years ago
8 0

Answer:

1. d[H₂O₂]/dt = -6.6 × 10⁻³ mol·L⁻¹s⁻¹; d[H₂O]/dt = 6.6 × 10⁻³ mol·L⁻¹s⁻¹

2. 0.58 mol

Explanation:

1.Given ΔO₂/Δt…

    2H₂O₂     ⟶      2H₂O     +     O₂

-½d[H₂O₂]/dt = +½d[H₂O]/dt = d[O₂]/dt  

d[H₂O₂]/dt = -2d[O₂]/dt = -2 × 3.3 × 10⁻³ mol·L⁻¹s⁻¹ = -6.6 × 10⁻³mol·L⁻¹s⁻¹

 d[H₂O]/dt =  2d[O₂]/dt =  2 × 3.3 × 10⁻³ mol·L⁻¹s⁻¹ =  6.6 × 10⁻³mol·L⁻¹s⁻¹

2. Moles of O₂  

(a) Initial moles of H₂O₂

\text{Moles} = \text{1.5 L} \times \dfrac{\text{1.0 mol}}{\text{1 L}} = \text{1.5 mol }

(b) Final moles of H₂O₂

The concentration of H₂O₂ has dropped to 0.22 mol·L⁻¹.

\text{Moles} = \text{1.5 L} \times \dfrac{\text{0.22 mol}}{\text{1 L}} = \text{0.33 mol }

(c) Moles of H₂O₂ reacted

Moles reacted = 1.5 mol - 0.33 mol = 1.17 mol

(d) Moles of O₂ formed

\text{Moles of O}_{2} = \text{1.33 mol H$_{2}$O}_{2} \times \dfrac{\text{1 mol O}_{2}}{\text{2 mol H$_{2}$O}_{2}} = \textbf{0.58 mol O}_{2}\\\\\text{The amount of oxygen formed is $\large \boxed{\textbf{0.58 mol}}$}

You might be interested in
What is the PH of a 7.5x10^-3 M OH solution
Triss [41]
pH: 11.8750612634
pOH: 2.12493873661
[H+]: 1.33333333333E-12
[OH-]: 0.0075
BASE
5 0
3 years ago
Read 2 more answers
When the Moon moves between the Sun and Earth and casts a shadow on Earth's surface, there is a(n)
allochka39001 [22]
Hi , the answer is D because the moon is blocking the sun s rays .
<span />
5 0
3 years ago
What is the percent of S in
ollegr [7]

The percentage of the sulfur (S) in the compound CuSO₄ is 20.1 %.

<h3>What is the mass percentage?</h3>

The percentage of an element in a compound can be determined as the number of parts by mass of that element present in 100 parts by mass of the given compound.

First, calculate the molecular mass of the given compound by the addition of the atomic masses of all the present elements in the molecular formula. Then, the percentage of the elements can be determined by dividing the total mass of the element by the molar mass of the compound multiplied by 100.

Given, the atomic mass of copper, sulfur, and oxygen is 63.55 g, 32.07 g, and 16.0g respectively.

The molecular mass of CuSO₄ =  63.55 + 32.07 + 4(16.0)  = 159.62 g

The mass percentage of the sulphur = (32.07/159.62) × 100 = 20.1 %

Therefore, the mass percentage of the sulfur is equal to 20.1 %.

Learn more about  the mass percentage, here:

brainly.com/question/16750428

#SPJ1

7 0
1 year ago
Which best explains the relationship between evaporation and temperature?
RideAnS [48]

Answer:

A liquid evaporated slow at higher temperature bz the vapour pressure of the is higher so few molecule can escape the surface

5 0
2 years ago
se the following key to classify each of the elements below in its elemental form: A. Discrete atoms ... C. Metallic lattice B.
Lostsunrise [7]

Explanation:

the correct match can as follows:

1.  helium ⇒ discrete atoms (helium is an inert gas)

2. oxygen ⇒ molecules (oxygen exists in molecular form as O2)

3 Magnesium ⇒ matalic lattice ( Magnesium is a metal FCC crystal Structure :) )

4 Aluminum⇒ covalent network (since it is situated in the middle of the group and posses amphoteric properties too)

4 0
3 years ago
Other questions:
  • The noble gases are an example of a ______ of elements. period family table
    14·1 answer
  • Which of these is NOT a function of the skin?
    11·1 answer
  • Help please! I don’t know what subject to pick this is science tho!!!!!!!!!!!!!!!
    7·1 answer
  • Can cells have different types of openings?
    10·1 answer
  • What does the kinetic molecular theory explain?
    6·2 answers
  • How many molecules of Acetic Acid (CH3COOH) are in a sample that has a mass of 172.90 g?
    9·1 answer
  • Looking for 14-16, hispanic, curly hair, tall, genuinely a nice guy
    6·1 answer
  • In science, we like to develop explanations that we can use to predict the outcome of events and phenomena. Try to develop an ex
    9·1 answer
  • Which part of the cell controls many functions of the cell and stores DNA?
    14·2 answers
  • Which statement best describes the reflection of a wave?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!