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
musickatia [10]
3 years ago
6

An isothermal plug flow reactor is used to remove an environmental contaminant from polluted water via a 2nd-order reaction. A r

esidence time of 7.5 min in the reactor results in 90% conversion. To obtain 99% conversion, what is the closest time below that would be expected? Explain your answer. a. 8.2 min b. 15 min c. 80 min d. 250 min e. 1500 min

Chemistry
1 answer:
evablogger [386]3 years ago
5 0

Answer:

The exact result is 82.5 min (close to c. 80 min)

Explanation:

Hello,

In the following picture you'll find the numerical procedure for this exercise.

- Take into account that the initial concentration and the velocity constant remain constant for the two mentioned scenarios.

Best regards.

You might be interested in
A student measures the absorbance of a sample of red dye #3 using a spectrophotometer. If the absorbance is measured as 0.468, w
Gre4nikov [31]

Answer:

5.88 μM is the concentration of red dye in the sample.

Explanation:

Absorbance is defined s capacity of a substance to absorb a light of a specified wavelength.It is calculated by using Beer-Lambert Law:

A=\epsilon lc

A = absorbance

\epsilon = Molar absorptivity

c = concentration

l =  Length of the solution through which light passes

Given, A = 0.468, l = d = 1.00 cm,c = ?

\epsilon =7.96\times 10^4 M^{-1} cm^{-1}

A=\epsilon lc

0.468=7.96\times 10^4 M^{-1} cm^{-1}\times 1.00 cm\times c

c=5.8793\times 10^{-6} mol/L=5.8793 mol/(\mu L)\approx 5.88mol/(\mu L)

(1 L= 1,000,000 \mu L)

5.88 μM is the concentration of red dye in the sample.

5 0
4 years ago
How many electrons are there in second principal energy<br> level(n=2) of a phosphorus atom?
salantis [7]

Answer:

8 electrons

Explanation:

Phosphorous is the element of group 15 and third period. The atomic number of chlorine is 15 and the symbol of the element is P.

The electronic configuration of the element phosphorus is:-

1s^22s^22p^63s^23p^3

Thus, from the electronic configuration shown above,

In n = 2, the total number of electrons are 8 which are present in 2s^22p^6

6 0
4 years ago
How many grams are in8.2'10^22 molecules of N2i6​
maks197457 [2]

Explanation:

Hope the picture with the working out helps :)

4 0
3 years ago
How does aspirin interact with other drugs
Damm [24]

The most common drugs that aspirin may interact with are: Anti-inflammatory painkillers, such as diclofenac, ibuprofen, indomethacin, and naproxen. Taken with aspirin, these can increase the risk of bleeding. Warfarin, an anticoagulant drug, or a blood thinner, which stops the blood from clotting.

7 0
4 years ago
A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal.
sertanlavr [38]

Answer is: Check for the presence of alpha, beta, and gamma particles.

1) Alpha particle is nucleus of a helium-4 atom, which is made of two protons and two neutrons.

Alpha decay is radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and transforms into an atom with an atomic number that is reduced by two and mass number that is reduced by four.

2) Beta decay is radioactive decay in which a beta ray and a neutrino are emitted from an atomic nucleus.

There are two types of beta decay: beta minus and beta plus.

3) During gamma emission the nucleus emits radiation without changing its composition.

5 0
4 years ago
Read 2 more answers
Other questions:
  • Doppler shifted hydrogen absorption lines are seen in the spectrum of a star. The hydrogen line at 656.28 nm is seen to be shift
    9·1 answer
  • The value of Ka for nitrous acid (HNO2) at 25 ∘C is 4.5×10−4 .a. Write the chemical equation for the equilibrium that correspond
    12·1 answer
  • Which type of severe weather is NOT an intense tropical storm?
    9·1 answer
  • Carbon dioxide (1.100g) was introduced into a 1L flask which contained some pure oxygen gas. The flask was warmed to 373K and th
    12·1 answer
  • Are ALL cations positive or negative ions
    12·2 answers
  • A volcanologist noted that a lahar rushed down a mountain at 32.2 kilometers per hour, south. How far did
    5·1 answer
  • How to find the number of atoms present in 22g of co2​
    6·1 answer
  • Explain what is happening during a redox reaction.
    5·1 answer
  • Anybody Understand this question please help me !
    7·1 answer
  • Write the general electron configuration of a transition element(b) in Period 6.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!