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
Mekhanik [1.2K]
3 years ago
13

Formaldehyde is a carcinogenic volatile organic compound with a permissible exposure level of 0.75 ppm. At this level, how many

grams of formaldehyde are permissible in a 6.0-L breath of air having a density of 1.2 kg/m3?
Chemistry
1 answer:
Flauer [41]3 years ago
8 0

Answer : The amount of formaldehyde permissible are, 5.4\times 10^{-6}g

Explanation : Given,

Density of air = 1.2kg/m^3=1.2g/L     (1kg/m^3=1g/L)

First we have to calculate the mass of air.

\text{Mass of air}=\text{Density of air}\times \text{Volume of air}

\text{Mass of air}=1.2g/L\times 6.0L

\text{Mass of air}=7.2g

Now we have to calculate the amount of formaldehyde.

Permissible exposure level of formaldehyde = 0.75 ppm = \frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}

Amount of formaldehyde in 7.2 g of formaldehyde = 7.2g\times \frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}

Amount of formaldehyde in 7.2 g of formaldehyde = 5.4\times 10^{-6}g

Thus, the amount of formaldehyde permissible are, 5.4\times 10^{-6}g

You might be interested in
What is an empirical formula
yarga [219]
A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
8 0
3 years ago
Read 2 more answers
***50 points***<br><br> Magnesium reacts with aluminum chloride
charle [14.2K]
Mg+alcl3-->mgcl2+al is the
6 0
3 years ago
How does the freezing and boiling point of ocean water compare to those of distilled water?
vichka [17]
Distilled water is touched by man so it would probably be close to 300 degrees farenheit.......maybe.
8 0
3 years ago
Which statement below best describes mutations?
Studentka2010 [4]

Answer:

C. Mutations are a change in DNA or a chromosome and can be helpful, harmful or may have no affect.

Explanation:

  • Mutations are spontaneous random changes that occurs in the genetic make up of an organisms. Mutations are rare and their rate of occurrence is random.
  • Mutations may occur on the gene level known as gene mutations or at chromosome levels called chromosomal mutations.
  • Mutations may be beneficial, harmful or have no effect on a given organisms. Harmful mutations cause disorders that may lead to abnormality or death of an organisms. Beneficial mutations improve an organisms adaptability to the environment.
8 0
3 years ago
Which statement describes a scientific theory?
vichka [17]
Best Answer
C) is the best description, although a scientific theory is not necessarily a "fact". They are, however, based on evidence.

A) is complete garbage.

B) is a good description of a scientific "law"- something that predicts how a certain event will occur without explaining why this is (for instance, the law of gravity accurately describes the gravitational forces between two bodies, but does not explain why these forces are there).

D) is a scientific "hypothesis"- an explanation for an observed phenomena that is yet to be proven.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Potassium chlorate (KClO3) decomposes to form potassium chloride (KCl) and pure oxygen (O2) gas as shown below.
    12·1 answer
  • Why is the presence of a dipole in a molecule so important?
    5·1 answer
  • What is an isotope ? how is the mass calculated ?
    15·1 answer
  • Mole fraction of the solute in a 1.00. What is the molal aqueous eqaution?
    10·1 answer
  • *Will mark the BRAINLIEST*
    13·1 answer
  • A monatomic ion with a charge of 2 has an electronic configuration of 1s22s22p6. This ion is a(n) _______ . What is the chemical
    13·1 answer
  • What does (w/w)% mean?
    8·1 answer
  • A 100kg sumo wrestler named Bob is doing his daily run. He runs at a velocity of 8m/s. After the run Bob stops for a rest, and s
    15·1 answer
  • Please do not write answer in a zip file
    11·1 answer
  • AgNO3 is a useful chemical that has many applications and can undergo a variety of reactions. In the following examples, balance
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!