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
sineoko [7]
3 years ago
12

Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everything from fats and waxes to air

plane glue and nail polish. At high temperatures, it decomposes in a first-order process to methane and ketene (CH2═C═O). At 600°C, the rate constant is 8.7 × 10−3 s−1. (a) What is the half-life of the reaction? Give your answer in scientific notatio
Chemistry
1 answer:
Phantasy [73]3 years ago
4 0

Answer:

The half-life time, the team equired for a quantity to reduce to half of its initial value, is 79.67 seconds.

Explanation:

The half-life time = the time required for a quantity to reduce to half of its initial value. Half of it's value = 50%.

To calculate the half-life time we use the following equation:

[At]=[Ai]*e^(-kt)

with [At] = Concentration at time t

with [Ai] = initial concentration

with k = rate constant

with t = time

We want to know the half-life  time = the time needed to have 50% of it's initial value

50 = 100 *e^(-8.7 *10^-3 s^- * t)

50/100 = e^(-8.7 *10^-3 s^-1 * t)

ln (0.5) = 8.7 *10^-3 s^-1 *t

t= ln (0.5) / -8.7 *10^-3  = 79.67 seconds

The half-life time, the team equired for a quantity to reduce to half of its initial value, is 79.67 seconds.

You might be interested in
Plzz write a small pharghraph
sergiy2304 [10]
Mass = reactencts, 73g
4 0
3 years ago
35 Given the word equation:
Fantom [35]
When the reactant is single compound before the reaction and become more than single compound after reaction is called decomposition reaction
8 0
3 years ago
Read 2 more answers
What type of elements make up ionic bonds?
iragen [17]
Answer: An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal.
basically explains
3 0
2 years ago
Read 2 more answers
Lewis structure for 2O2
Mrrafil [7]

the big number describes the number ratio in a chemical equation

so for example,

2H2 + O2 --> 2H2O means

2 moles of hydrogen reacts with one mole of oxygen to form 2 moles of water

and as you know, the small (subscript) number determines the number of atoms of that element in one molecule of a compound

so I believe that drawing a normal lewis structure ( O=O ) should be correct

6 0
3 years ago
Read 2 more answers
Which statement correctly describes the location and charge of the neutrons in an atom?
rodikova [14]

Answer:

o

Explanation:

6 0
3 years ago
Other questions:
  • A decomposition reaction always breaks a compound down into two pure elements. True or False.
    13·2 answers
  • Which symbol represents a particle with a total of 10 electrons
    10·1 answer
  • Which statement is correct
    6·2 answers
  • How does an atom change if all of its electrons are removed?<br> .
    14·1 answer
  • What are the reactants and products when butane combusts with excess oxygen?
    12·1 answer
  • consider multiplying 26.2 by 16.43. what would a mathematician say the answer is? what would a scientist say the answer is?
    14·1 answer
  • Convert 250 g O2 to mol O2​
    9·1 answer
  • Explain why the equator has a warmer climate than the area near either the North or South pole. Be sure to thoroughly explain yo
    6·1 answer
  • Create their own food
    6·1 answer
  • If the empirical formula of a compound is C2OH4, and the molar mass is 88 g/mol, what is the molecular formula
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!