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
MA_775_DIABLO [31]
3 years ago
15

4.5 x 10^16 molecules of carbon dioxide are equal to how many moles?

Mathematics
1 answer:
IgorC [24]3 years ago
6 0

Step-by-step explanation:

1 mole of any substance = 6.022 * 10²³ molecules.

Number of moles of CO2

= (4.5 * 10¹⁶)/(6.022 * 10²³)

= 0.75 * 10^(-7)

= 7.5 * 10^(-8) mol.

You might be interested in
Create 5 word problems using the equations provided. Each word problem should have a maximum of 2 to 3 sentences. Solve your wor
podryga [215]

This is a word problem for 12.

Laura decided to throw a party. The DJ charged 2 dollars an hour and 4 dollars to use lights and fog. How long did the DJ play?

This one is for 11.

Kate wanted to go skating. When she got there it was 4 dollars an hour. The total cost was 12 dollars. How many hours did she skate?

5 0
3 years ago
Read 2 more answers
Mark has $175 to spend on school clothes. He buys 4 shirts for $24 each, 2 pairs of shorts for $18 each, and 2 pairs of pants fo
Sloan [31]

Answer:

$7.7

Step-by-step explanation:

Step one:

given data

total money = $175

He buys 4 shirts for $24 each= 24*4= $96

The shirts are discounted 20%

= 96- 0.2*96= 96-19.2= $76.8

2 pairs of shorts for $18 each= $36

2 pairs of pants for $22.50 each= $45

Total cost = $157.8

tax= 6%

total expenses

= 157.8+ 0.06*157.8

=157.8+9.468

=$167.268

The balance is

= 175-167.268

=$7.7

3 0
3 years ago
2 square times 3 square times 5 square is the prime factorization of what composite number?
yanalaym [24]
Is this suppose to be for elementary because I'm in middle school and I got 900 2^2*3^2*5^2=900
7 0
3 years ago
Or a population, N = 10,000, μ = 121, and σ = 21. Find to 2 decimal places the z value for
Ugo [173]

Answer:

The z value is - 2.88

Step-by-step explanation:

The formula of the z-score of a population is z = (x¯ - μ)/(σ/\sqrt{n})

The given in the problem is:

  • μ = 121
  • σ = 21
  • x¯ = 112.35
  • n = 49

Let us substitute all of these values in the rule above

z=\frac{112.35-121}{\frac{21}{\sqrt{49}}}

Simplify up and down

z=\frac{-8.65}{\frac{21}{7}}

z=\frac{-8.65}{3}

z = - 2.883333

Round it to 2 decimal places

∴ z = - 2.88

The z value is - 2.88

7 0
4 years ago
I need help with this problem asap
Lelechka [254]
Angles 1 and 2 would be acute and vertical
7 0
3 years ago
Other questions:
  • If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form
    13·1 answer
  • 8 - 5 + 2 = evaluate
    14·2 answers
  • Can u answer #19. I really need help. And PLEASE SHOW UR WORK!!!!!!!!!!!!
    9·2 answers
  • 9(x+1)=25+x solve for x
    15·1 answer
  • Want brainliest pick a number 1-3 first to answer gets it
    11·1 answer
  • A line segment has endpoint j(2,4) and l(6,8).the point k is the midpoint of jl.what is an equation of a line perpendicular to j
    5·1 answer
  • PLEASE HELP! I WILL MARK BRAINLIEST!!!
    6·2 answers
  • Voltage-divider bias provide​
    9·1 answer
  • Wesley and Lincoln went fishing
    15·1 answer
  • What is the simultanous equation of 2x+y=–5 3x+2y=–8 equation Using the Substitution method​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!