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
Zigmanuir [339]
3 years ago
15

The rate constant for this first‑order reaction is

Chemistry
1 answer:
jenyasd209 [6]3 years ago
5 0

Answer:

t = 5.7634 s

Explanation:

  • A → Pdts
  • - rA = K (CA)∧α = - δCA/δt

∴ T = 400°C

∴ α = 1 ....first-order

∴ CAo = 0.950 M

∴ CA = 0.300 M

⇒ t = ?

⇒ - δCA/δt = K*CA

⇒ - ∫δCA/CA = K*∫δt

⇒ Ln (CAo/CA) = K*t

⇒ t = Ln(CAo/CA) / K

⇒ t = (Ln(0.950/0.300)) / (0.200 s-1)

⇒ t = 1.1527 / 0.200 s-1

⇒ t = 5.7634 s

You might be interested in
When you heat a substance what happens to the molecules
tatyana61 [14]
I'm pretty sure they come closer, and on the small chance i'm wrong, they separate.<span />
6 0
3 years ago
Read 2 more answers
Anomalous data shows on a graph as a
KiRa [710]
Anomalous data on a graph would show up as say a very high or very low value which does not fit in with the normal values which may be background values.If it was a straight line graph then the anomalous point would plot well above or below the line or if it was a bar graph ie a histogram it would be much higher or lower than the surrounding data. In mineral exploration, anomalies are looked for in say geophysics or geochemistry data values for high or low magnetism or conductivity or high chemical values indicating the presence of valuable minerals at that point.
6 0
3 years ago
Using tongs place the 250 mL beaker on hot plate
LenKa [72]

Answer:

just use the tongs and put it on a plate

Explanation:

4 0
2 years ago
What are the monomers of bakelite​
topjm [15]

Answer:

Bakelite is a polymer made up of the monomers phenol and formaldehyde. This phenol-formaldehyde resin is a thermosetting polymer.

8 0
3 years ago
Read 2 more answers
A centrifuge was used to separate a sample into its components. What conclusion about the sample can be formed based on the tech
Komok [63]

Its Homogenous Centrifuges are used to speed up the process of separating Homogeneous mixtures.

8 0
3 years ago
Read 2 more answers
Other questions:
  • 18) Why are the large oak trees so important for storks? Where are<br> they found?<br> 1
    8·1 answer
  • Give five examples of structures with this formula (c6h12). at least one should contain a ring, and at least one should contain
    10·1 answer
  • Which of the following you do NOT need to pay attention while using a centrifuge?
    9·1 answer
  • 1. At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water? 2H2(g)+O2(g) -&
    5·1 answer
  • An iceberg has a volume of 8925 ft3. is the mass in kilograms of the iceberg?
    6·1 answer
  • The National Institute for Occupational Safety and Health (NIOSH) sets standards for CCl4 in air at 12.6 mg/m^3 of air (a time a
    14·2 answers
  • What is the function of the cell membrane
    5·1 answer
  • Is milk or ice cream a more stable colloid
    12·1 answer
  • PLEASE Help I will give u brainliest for if u get right.
    6·2 answers
  • Balance the equation C4H8 (g) + ?O2(g) → ? CO2 (g) + ? H2O (g), using the smallest possible integers. What is the coefficient of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!