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
Zina [86]
3 years ago
7

The decomposition of H2O2 is first order in H2O2 and the rate constant for this reaction is 1.63 x 10-4 s-1. How long will it ta

ke for [H2O2] to fall from 0.95 M to 0.33 M?
Chemistry
1 answer:
Mamont248 [21]3 years ago
3 0

Answer:

It will take 6486.92 minutes  for [H2O2] to fall from 0.95 M to 0.33 M

Explanation:

The order of reaction is defined as the sum of the powers of the concentration terms in the equation. Order of a reaction is given by the number of atoms or molecule whose concentration change during the reaction and determine the rate of reaction.

In first order reaction;

In \dfrac{a}{a_o-x}= k_1 t

where;

a = concentration at time t

a_o = initial concentration

and k = constant.

In (\dfrac{0.33}{0.95})= -1.63 \times 10^{-4} \times t

-1.05736933 = -1.63 \times 10^{-4} \times t

t = \dfrac{-1.05736933}{  -1.63 \times 10^{-4} }

t = 6486.92 minutes

You might be interested in
How many moles of NaCl are needed to make 10.0L of a 5 M solution of<br> Salt water?*
vesna_86 [32]

Answer: 50 mol

Explanation:

Molarity=\frac{Moles -of -solute}{liters -of -solution}

M=\frac{mol}{L}

mol=M*L

mol=5*10\\mol=50mol

3 0
3 years ago
Predict the following chemical formula for a compound between aluminum and chlorine. AlCl3 Al3Cl Al2Cl3 Al3Cl2
Tasya [4]
Both aluminum and chlorine have known charges, which are +3 and -1 respectively. To make them cancel each other out in charge, you would need 3 chlorine and for one aluminum, therefore AlCl_{3} would be correct
7 0
3 years ago
How many moles of C are needed to react with 0.460 mole SO2 ? Equation: 5C(s)+2SO2(g)→CS2(l)+4CO(g)
stepan [7]

Answer:

12345678909ygtufyghkkgjfjvhbkjn,bhmgncfxcgvhbm

Explanation:

3 0
3 years ago
The alkali metals cesium (Cs) and rubidium (Rb) were discovered based on their characteristic flame colors. Cesium is named afte
Dmitry_Shevchenko [17]

well Cs=blue/violet and Rb= red

5 0
3 years ago
The diameter of metal wire is often referred to by its American wire-gauge number. A 16 gauge-wire has a diameter of 0.05082 in.
lubasha [3.4K]

Answer:

length of wire = 38.82 m

Explanation:

∴ 16 gauge ≡ 0.05082 in * ( 2.54 cm/in ) = 0.12908 cm

∴ m spool = 1 Lb = 453.592 g

∴ ρ = 8.92 g/cm³

cross section area:

⇒ A = π*D²/4 = π*(0.12908)²/4 = 0.0131 cm²

⇒ L = ((453.592 g) *(cm³/8.92 g)) / ( 0.0131 cm² )

⇒ L = 3881.765 cm * ( m/100cm) = 38.82 m

8 0
3 years ago
Other questions:
  • Identify whether this describes heat or temperature.<br> Unit of measurement: Celsius
    8·1 answer
  • Are molecules with identical chemical formulas but different three-dimensional structures
    14·1 answer
  • which two conditions can limit the usefulness of the kinetic-molecular theory in describing gas behavior
    15·1 answer
  • When a aqueous solution of a certain acid is prepared, the acid is dissociated. Calculate the acid dissociation constant of the
    6·1 answer
  • In the reaction C5H8+____ O2= 8H2O+5CO2
    10·1 answer
  • What is found in the outer region of the electron cloud
    13·1 answer
  • When a substance undergoes a Chemical Change, can the change be reversed? Explain your answer.​
    8·2 answers
  • Use what you have learned about the types of energy that travel from the Sun to Earth to match each term with its description.
    14·2 answers
  • A word equation is commonly used for describing a:
    6·1 answer
  • PLEASE HELP!!! Which claim about the causes of air pollution and water pollution is true? A. the burning of fossil fuels causes
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!