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
zloy xaker [14]
3 years ago
12

6) A student measures out 96.21 g of sulfur for an experiment. How many moles of Sulfur are in this

Chemistry
2 answers:
n200080 [17]3 years ago
8 0

Answer:

\boxed {\boxed {\sf 3 \ moles \ sulfur}}

Explanation:

To convert from grams to moles, the molar mass is used. This value is the number of grams in 1 mole of a substance and it can be found on the Periodic Table. Look for Sulfur or S.

  • Sulfur: 32.07 g/mol

We use this as a ratio.

\frac {32.07 \ g \ S}{1 \ mo;\l\ S }

Multiply by the given number of grams.

96.21 \ g \ S*\frac {32.07 \ g \ S}{1 \ mo\l\ S }

Flip the fraction so the grams of sulfur cancel out.

96.21 \ g \ S*\frac {1 \ mol \ S}{32.07 \ g \ S }

96.21*\frac {1 \ mol \ S}{32.07  }

\frac {96.21 \ mol \ S}{32.07  }= 3  \ mol \ S

96.21 grams of sulfur is equal to <u>3 moles of sulfur.</u>

barxatty [35]3 years ago
5 0

Atomic mass of Sulfur = 32g

32g of Sulfur is one mole.

1g of Sulfur is \frac{1}{32} moles

96.21g of Sulfur is \frac{96.21}{32} moles=> 3moles(appx)

You might be interested in
"calculate the ratio of the velocity of hydrogen molecules to the velocity of carbon dioxide molecules at the same temperature"
Ne4ueva [31]

Answer: 1:4.69

Explanation:

The ratio can be expressed as:

Ua/Ub= √(Mb/Ma)

Where Ua/Ub is the ratio of velocity of hydrogen to carbon dioxide and Ma is the molecular mass of hydrogen gas= 2

Mb is the molecular mass of CO2 = 44

Therefore

Ua/Ub= √(44/2)

Ua/Ub = 4.69

Therefore the ratio of velocity of hydrogen gas to carbon dioxide = 1:4.69

which implies hydogen is about 4.69 times faster than carbon dioxide.

8 0
3 years ago
3-ethyl-2-methyl-2-pentene
gayaneshka [121]
See photo for drawing :)

3 0
3 years ago
When water vapor condenses high in the sky what is formed
Goryan [66]
A cloud is formed because the water vapor gathers in groups
3 0
3 years ago
How many milliliters of 0.200 m fecl3 are needed to react with an excess of na2s to produce 1.38 g of fe2s3 if the percent yield
ahrayia [7]
<span>Answer: 100 ml
</span>

<span>Explanation:


1) Convert 1.38 g of Fe₂S₃ into number of moles, n


</span>i) Formula: n = mass in grass / molar mass
<span>
ii) molar mass of </span><span>Fe₂S₃ =2 x 55.8 g/mol + 3 x 32.1 g/mol = 207.9 g/mol
</span>

iii) n = 1.38 g / 207.9 g/mol = 0.00664 moles of <span>Fe₂S₃
</span>

<span>2) Use the percent yield to calculate the theoretical amount:
</span>

<span>65% = 0.65 = actual yield/ theoretical yield =>


</span>theoretical yield = actual yield / 0.65 = 0.00664 moles / 0.65 = 0.010 mol <span>Fe₂S₃</span><span>

3) Chemical equation:
</span>

<span> 3 Na₂S(aq) + 2 FeCl₃(aq) → Fe₂S₃(s) + 6 NaCl(aq)


4) Stoichiometrical mole ratios:
</span>

<span>3 mol Na₂S : 2 mol FeCl₃ : 1 mol Fe₂S₃ : 6 mol NaCl


5) Proportionality:


</span>2moles FeCl₃ / 1 mol Fe₂S₃ = x / 0.010 mol Fe₂S₃
<span>
=> x = 0.020 mol FeCl₃


6) convert 0.020 mol to volume
</span>

<span>i) Molarity formula: M = n / V
</span>

<span>ii) V = n / M = 0.020 mol / 0.2 M = 0.1 liter = 100 ml
</span>

3 0
3 years ago
Read 2 more answers
a solid substance is an excellent conductor of electricity. The chemical bonds in this substance are most likely...
Alex
The answer is "metallic" hope this helps

6 0
3 years ago
Read 2 more answers
Other questions:
  • Assuming the final solution will be diluted to 1.00 l , how much more hcl should you add to achieve the desired ph? express your
    13·1 answer
  • What are two household appliances that use an electric motor? What does the motor make happen in each appliance.
    9·2 answers
  • A topographic map would be most useful for which activity?
    11·2 answers
  • A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of distilled liquid is obs
    7·1 answer
  • What is the product of aluminum +zinc sulfate solution
    15·1 answer
  • Here it was the picture to that
    14·1 answer
  • Consider the equation below.
    5·1 answer
  • Chelsea went ice skating. The ice, her skates, the Zamboni, and the rink building were all examples of solids she encountered. S
    8·1 answer
  • What is the chemical formula for borax
    13·2 answers
  • How can you calculate the energy of an electron who moved from E1 to E5?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!