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
zaharov [31]
3 years ago
8

How many moles are in 25g of CO2? With calculation show please

Mathematics
2 answers:
GuDViN [60]3 years ago
5 0
Here’s the answer! Let me know if you have any questions
goldenfox [79]3 years ago
3 0

Answer:

0.568 moles (3 s.f.)

Step-by-step explanation:

no. of moles= mass ÷mr

Mr (molecular mass) is the sum of atomic masses of the atoms in the compound. The atomic mass can be found from the periodic table.

Mr of CO₂

= 12 + 2(16)

= 44 amu

Thus, no. of moles

= 25 ÷44

= 0.568 moles (3 s.f.)

You might be interested in
on a recent scuba diving trip, kate and kara reached a depth of 130 feet. six and a half minutes later, after ascending at a con
vitfil [10]

Let x be the time and y is the depth

At x = 0 y = -130

At x= 6.5 y = 0

So the slope = (0- (-130) / ( 6.5 – 0) = 20

Y intercept b

0 = 20(6.5) + b

B= -130

The equation

Y = 20x -130

The domain all real numbers from 0 to 6.5

Range is all realnumber from -130 to 0

3 0
3 years ago
11/4 hours 19/8 hours 2.6 hours witch is closest to 2 hours?
ExtremeBDS [4]

Answer:

\frac{19}{8} hours is closest to 2 hours.

Step-by-step explanation:

We have been given three numbers and we need to decide which of the three numbers is closest to 2.

In order to decide that, we will convert each of the given numbers into decimals and then we will compare.

\frac{11}{4} =2.750\\\frac{19}{8}=2.375\\2.6=2.600

Upon comparing 2.750, 2.375 and 2.600 we know that 2.375 is closest to 2. Therefore, out of the given three numbers, \frac{19}{8} is closest to 2.

4 0
3 years ago
A racing car used 255 litres of fuel to complete a 340 km race.
kicyunya [14]
255 l ------ 340km
x l -------- 100km

100*255=340x
25500=340x

x=75 litres 
5 0
3 years ago
Which unit rate is the lowest price per ounce? Choice A: 15 ounces of chocolate chips for $2.49 Choice B: 20 ounces of chocolate
iris [78.8K]
2.49/15 = 0.166
3.32/20 = 0.166

they both cost the same per oz
3 0
3 years ago
Read 2 more answers
Which graph shows the solution set for |x - 3| < 4?
ikadub [295]

Answer:

see below

Step-by-step explanation:

|x - 3| < 4

To remove the absolute values, we need to make two inequalities, one positive and one negative

x-3 < 4     and     x-3 > -4

Add 3 to each side

x-3+3<4+3     and  x-3+3 > -4+3

x<7        and        x >-1

-1 <x <7

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x<br><img src="https://tex.z-dn.net/?f=6x%20-%202%20%3D%204x%20%2B%2013" id="TexFormula1" title="6x - 2 = 4x + 13" alt
    15·1 answer
  • Celebs family room has dimensions of 3 7/8 length and 5 1/4 width. What is the area?
    10·2 answers
  • What is the awnser again!??!???
    15·2 answers
  • The perimeter of the rectangle when x = 3 is 22. Which equation can be used to represent the perimeter of the rectangle, P(x)?
    11·1 answer
  • Which of the following is 18x2/6x simplified?<br><br> 3x<br> 9x<br> 4x<br> x/3
    6·2 answers
  • A Toyota prius drove 208 miles on 5 gallons of gas. how far should it be able to go on a full 11 gallon tank?
    14·2 answers
  • URGENT!!!! A ship sails due east from point A for 30 miles. It then
    13·1 answer
  • Help if you see a troll report them
    13·1 answer
  • Cos^2xcos^2x/2 -sin^2(x/2 -pi/4)sin^2x
    8·1 answer
  • Which number has an absolute value
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!