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
marusya05 [52]
3 years ago
9

Calculate the amount of hcn that gives the lethal dose in a small laboratory room measuring 12.0 ft×15.0 ft×8.50ft.

Mathematics
1 answer:
Anarel [89]3 years ago
7 0
Dimensions of the room in cm = 2.54 x 12 by 15 x 2.54 by 2.54 x 8.5 = 30.48 by 38.1 by 21.59

Volume of the room in cubic cm = 30.48 x 38.1 x 21.59 cubic cm = 25,072.21 cubic cm

Given that the density of air at room temperature is 0.00118g/cm^3, thus the mass of air in the room = 25,072.21 x 0.00118 = 29.59 g = 0.0296 kg

Given that the lethal dose of HCN is approximately 300 mg HCN per kilogram of air when inhaled, thus the <span>amount of HCN that gives the lethal dose in the small laboratory room is given by 300 x 0.0296 = 8.88 mg.</span>
You might be interested in
elect the correct answer. graph A graph B graph C graph D A credit card company uses these rules to calculate the minimum amount
laila [671]

The graph that correctly shows the minimum amount due for a credit amount (x)  is graph B.

<h3>How to determine the graph with the minimum amount due?</h3>

First of all, we would assign a variable to the different amount of money as follows:

  • Let x be the credit amount.
  • Let y be the minimum amount due.

Translating the word problem into an algebraic expression, we have;

For a bill of less than $100, the entire amount is due:

0 ≤ x < $100, therefore, y = x

For a bill of at least $100 but less than $500, the minimum due is $100: $100 ≤ x < $500, therefore, y = 100

For a bill of at least $500 but less than $1,000, the minimum due is $300:

$500 ≤ x < $1000, therefore, y = $300

For a bill of $1,000 or more, the minimum due is $500:

Since the credit limit is equal to $2000, we have $1000 ≤ x < $2000 and y = $500

In conclusion, the graph that correctly shows the minimum amount due for a credit amount (x)  is graph B.

Read more on graphs here: brainly.com/question/16883029

#SPJ1

5 0
2 years ago
At the bank, Sheila made 6 deposits, each in the same amount. Her sister Sherri made 5 deposits, each in the same amount. Each o
dmitriy555 [2]
A.6x=5(x+10)
b.6x=5x+50
    x=50
c. 6(50)=5((50)+10)
   300 = 5(60)
   300= 300
5 0
3 years ago
Measure in degrees of x. someone please help options are listed!!!
Svetach [21]

I hope this helps you

5 0
3 years ago
The length of a Rectangle is 5M bigger than the width. The Perimeter is 150 a.m.. Find the width and the length
ZanzabumX [31]

Answer:

200 is the answer plz mark me

4 0
3 years ago
Need help ASAP thank you!!!!
VashaNatasha [74]

Answer:

65.97

Step-by-step explanation:

volume of a cone is pi(r)^2(h)/3

hope this helps

5 0
3 years ago
Other questions:
  • Factor x2 + 6x + 8.
    5·1 answer
  • A triangle has base 7m and area 17.5m^2 what is the height
    9·1 answer
  • Helppp (picture below)
    7·2 answers
  • 5.02 kg= ? A.502 g B.50.2 g C. 0.502 g D. 5,020 g
    9·2 answers
  • The graph of g(x) = (1/2)^x is the graph of f(x) = 2^x reflected over the y-axis. Which graph represents g(x)?
    11·1 answer
  • Six times a number is greater than 20 more than that number. What are the possible values of that number?
    5·1 answer
  • A ghost on a 135 feet cliff perpendicular (at 90 degrees) to the ground looks down at an angle of 16 degrees and sees a
    6·2 answers
  • Find the measure of the central angle with an arc length equaling 29.21 and a circumference = 40.44
    11·1 answer
  • What is the answer to 1/4(12+x)+1/2(x-6)
    14·1 answer
  • Order the numbers from least to greatest
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!