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
Lelu [443]
3 years ago
7

The rate constant for a particular zero-order reaction is 0.075 M s-1. If the initial concentration of reactant is 0.537 M it ta

kes ________ s for the concentration to decrease to 0.100 M.
Chemistry
1 answer:
Anarel [89]3 years ago
8 0

Answer:

It takes 5.83s to decrease the concentration of the reactant from 0.537M to 0.100M

Explanation:

A zero-order reaction follows the equation:

[A] = [A]₀ - kt

<em>Where [A] is actual reaction of the reactant = 0.100M</em>

<em>[A]₀ the initial concentration = 0.537M</em>

<em>k is rate constant = 0.075Ms⁻¹</em>

<em>And t is time it takes:</em>

<em />

0.100M = 0.537M -0.075Ms⁻¹t

-0.437M = -0.075Ms⁻¹t

5.83s = t

It takes 5.83s to decrease the concentration of the reactant from 0.537M to 0.100M

You might be interested in
The oxidation numbers of nitrogen in nh3, hno3, and no2 are, respectively:
vovikov84 [41]
The oxidation numbers for Nitrogen are respectively -3, +5, +4
3 0
3 years ago
Read 2 more answers
Which of the following molecules would exhibit only London forces?a)CH4, BH3, and CCl4b)H2O, NH3, and CCl4c)PH3, NH3, and CCl4
Alex787 [66]

Answer:

a)CH₄, BH₃, and CCl₄

Explanation:

<u>London dispersion forces:- </u>

The bond for example, in the molecule is F-F, which is non-polar in nature because the two fluorine atoms have same electronegativity values.

The intermolecular force acting in the molecule are induced dipole-dipole forces or London Dispersion forces / van der Waals forces which are the weakest intermolecular force.

Out of the given options, H₂O , NH₃ exhibits hydrogen bonding which is:-

<u>Hydrogen bonding:- </u>

Hydrogen bonding is a special type of the dipole-dipole interaction and it occurs between hydrogen atom that is bonded to highly electronegative atom which is either fluorine, oxygen or nitrogen atom.

Thus option B and C rules out.

<u>Hence, the correct option which represents the molecules which would exhibit only London forces is:- a)CH₄, BH₃, and CCl₄</u>

4 0
3 years ago
Adding sugar to your tea physical or chemical change ​
ExtremeBDS [4]

Answer:

physical

Explanation:

no chemical reaction occurs

6 0
3 years ago
Read 2 more answers
Calculate the ph of a solution having [OH-] = 8.2 x 10 ^-8M
egoroff_w [7]

Answer:

<h2>6.91 </h2>

Explanation:

To find the pH we must first find the pOH

The pOH can be found by using the formula

pOH = - log [ {OH}^{-} ]

We have

pOH =  -  log(8.2 \times  {10}^{ - 8} )  \\  = 7.086186...

pOH = 7.09

Next we use the equation

pH = 14 - pOH

We have

pH = 14 - 7.09

We have the final answer as

<h3>6.91</h3>

Hope this helps you

8 0
3 years ago
Select the correct answer.
Dmitry [639]

Answer:

A number is right I think

8 0
3 years ago
Read 2 more answers
Other questions:
  • A 250-ml sample of na2so4 is reacted with an excess of bacl2. if 5.28 g baso4 is precipitated, what is the molarity of the na2so
    7·1 answer
  • (4) strontium (sr) has an fcc crystal structure, an atomic radius of 0.215 nm and an atomic weight of 87.62 g/mol. calculate the
    8·1 answer
  • What are some global problems that material scientists are working to fix
    7·1 answer
  • Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 10.3 g of octane is m
    6·1 answer
  • Which of the following would most likely contain a fossil?
    13·1 answer
  • Which of the following elements is unreactive argon, germanium, magnesium,sulfur?
    10·1 answer
  • Fe2O3 + CO --&gt; Fe + CO2
    11·1 answer
  • Hello please help me on this problem thanks.sc​
    5·1 answer
  • Which one does Temperature measure
    11·1 answer
  • Consider an enzymatic reaction in which the initial concentration of substrate is low. If the amount of enzyme is held constant,
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!