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
andreev551 [17]
3 years ago
11

675 g of carbon tetrabromide is equivalent to how many

Chemistry
2 answers:
sertanlavr [38]3 years ago
8 0

Answer:

\boxed {\boxed {\sf About \ 2.04 \ moles \ of \ CBr_4}}

Explanation:

1. Define Formula

The compound is carbon tetrabromide. The tetra indicates 4 atoms of bromine.

  • Carbon (C)+ 4 Bromine (Br) = CBr₄

2. Find Molar Mass

There are 2 elements in this compound: carbon and bromine. Use the Periodic Table to find the molar masses of these elements.

  • Carbon (C): 12.011 g/mol
  • Bromine (Br): 79.90 g/mol

The molar mass is based on the number of atoms in the compound. The compound has 1 atom of carbon and 4 atoms of bromine.

CBr₄= 1(12.011 g/mol) + 4(79.90 g/mol)

= 12.011 g/mol+319.60 g/mol = 331.611 g/mol

3. Convert Grams to Moles

We want to convert 675 grams to moles. We should use the molar mass as a fraction.

\frac{331.611 \ g \ CBr_4}{1 \ mol \ CBr_4 }

Multiply by the given number of grams.

675 \ g \ CBr_4 *\frac{331.611 \ g \ CBr_4}{1 \ mol \ CBr_4 }

Flip the fraction so the grams of CBr₄ will cancel.

675 \ g \ CBr_4 *\frac{1 \ mol \ CBr_4 }{331.611 \ g \ CBr_4}= 675 \  *\frac{1 \ mol \ CBr_4 }{331.611 \ }

\frac{675 \ mol \ CBr_4 }{331.611 \ } = 2.03551752 \ mol \ CBr_4

4.Round

The original measurement, 675 grams has 3 significant figures (6,7 and 5), so our answer must have the same.

For the answer we found, 3 sig figs is the hundredth place.

2.03551752 \ mol \ CBr_4

The 5 in the thousandth place tells us to round the 3 to a 4.

\approx 2.04 \ mol \ CBr_4

There are about <u>2.04 moles </u>of carbon tetrabromide in 675 grams.

VARVARA [1.3K]3 years ago
7 0
<h3>Answer:</h3>

2.04 mol CBr₄

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Organic</u>

  • Writing Organic Compounds
  • Writing Covalent Compounds
  • Organic Prefixes

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

675 g CBr₄

<u>Step 2: Identify Conversions</u>

Molar Mass of C - 12.01 g/mol

Molar Mass of Br - 79.90 g/mol

Molar Mass of CBr₄ - 12.01 + 4(79.90) = 331.61 g/mol

<u>Step 3: Convert</u>

<u />\displaystyle 675 \ g \ CBr_4(\frac{1 \ mol \ CBr_4}{331.61 \ g \ CBr_4}) = 2.03552 \ mol \ CBr_4<u />

<u />

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

2.03552 mol CBr₄ ≈ 2.04 mol CBr₄

You might be interested in
Convert 5.00 mm to centimeters (cm).<br> 1 cm = 10 mm<br> (please show work) ASAP
adelina 88 [10]

Answer:

0.5 centimetres

Explanation:

because 1 mm is 0.1 centimetres

7 0
3 years ago
Determine the fraction of an original sample of tritium that remains unchanged after 24.62 years.
patriot [66]

Answer: The answer is 1/4

Explanation:

7 0
3 years ago
The carbohydrates seen here contains 3 common elements.They are....
Llana [10]
The answer is A),<span>carbon,hydrogen,and oxygen



Hope this helps
</span>
6 0
3 years ago
Read 2 more answers
What is a climograph
Otrada [13]
A climograph is a dual-purpose graph, showing two different kinds of information. A bar graph shows how much precipitation a given place receives during a period of time. A line graph shows the temperature conditions for the same place during the same period of time.
8 0
3 years ago
Can someone please explain this to me? I need help ​
Vladimir [108]

Answer:

The order would be: X-Rays, Visible Light, and Infrared Waves.

X-Rays have the shortest wavelength out of all three, then Visible Light, and Infrared Waves have the longest wavelength of the three.

Explanation:

So basically, the LONGER the wavelength, the lower the energy. and the SHORTER the wavelength, the higher the energy. For example, Radio waves are the WEAKEST out of all the types of waves because they have the LONGEST wavelengths. Gamma Rays are the STRONGEST out of all the types of waves because they have the SHORTEST wavelengths. So Radio Waves have the lowest energy, and Gamma Rays have the highest energy.

Here is a list of all the types of waves in order from shortest wavelength to longest wavelengths:

Gamma Rays (Shortest Wavelengths, High Energy), then X-Rays would be the second strongest, then Ultraviolet waves, then Visible Light, then Infrared waves, then Microwaves, and lastly Radio Waves (Longest Wavelengths, Low Energy).

6 0
3 years ago
Read 2 more answers
Other questions:
  • 30,434 and 43,403 alike and difrente
    5·1 answer
  • The density of red wine is 1.01g/cm3 and the density of olive oil is 0.92g/cm3.A salad dressing that consisted of these two ingr
    14·1 answer
  • Explain why phosphoric acid is needed for the battery to operate
    10·1 answer
  • Which of the following statement(s) are true about the atoms of any element?
    9·1 answer
  • Can someone double check my work? (Ideal Gas Law Equation)
    7·1 answer
  • 3. Why do you think the image of the pencil inside the beaker of water is different than the pencil
    13·1 answer
  • 1. You may "feel" cold when you touch certain kinds of matter because​
    14·1 answer
  • What is the mass number of an atom that contains<br><br> 47 protons, 47 electrons, and 62 neutrons?
    15·1 answer
  • you dropped a hot, heated metal into the water. after the metal was dropped, the temperature of the water?
    10·1 answer
  • Based on the electron configuration of the two
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!