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
photoshop1234 [79]
3 years ago
15

Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. express the nu

mber of moles of al, s, and o atoms numerically, separated by commas.
Chemistry
2 answers:
earnstyle [38]3 years ago
8 0
<span>Answer: 8, 12, 48.
</span>

<span>Explanation:
</span>

<span>1) Aluminum:
</span>

<span>There are 2 atoms of Al in the unit formula Al₂(SO₄)₃, so there are 4x2 = 8 atoms of Al in 4 unit formulas of the same compound.
</span>

<span>2) Sulfur:
</span>

There are 3 atoms of S in the unit formula <span>Al₂(SO₄)₃, so there are 4x3 = 12 atoms of S in 4 unit formulas of the same compound
</span>

3) Oxygen:

<span>
</span><span>There are 4x3 = 12 atoms of O in the unit formula </span><span>Al₂(SO₄)₃, so there are 4x12 = 48 atoms of O in 4 unit formulas of the same compound.</span>


So, the answer is 8, 12, 48
bagirrra123 [75]3 years ago
3 0
<span>To calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. We will simply inspect the "number" of aluminum, sulfur, and oxygen atoms available per one mole of the compound. Here we have Al2(SO4)3, which means that for every mole of aluminum sulfate, there are 2 moles of aluminum, 3 (1 times 3) moles of sulfur, and 12 (4x3) moles of oxygen. Since we have four moles of Al2(SO4)3 given, we simply multiply 4 times the moles present per 1 mole of the compound. So we have 4x2 = 8 moles of Al, 4x3 = 12 moles of sulfur, and 4x12 = 48 moles of oxygen.

So the answer is:
8,12,48


</span>
You might be interested in
What element is being oxidized in the following redox reaction?
GrogVix [38]

Answer:

The O is being oxidized, but at the same time, is being reducted.

Explanation:

H₂O₂(l) + ClO₂(aq) → ClO₂(aq) + O₂(g)

In this reaction, we have 4 compounds:

Hydrogen peroxide

Chlorine dioxide (twice)

Oxygen

In both dioxide, the Cl acts with +4 in oxidation state; the oxygen acts with -2.

Oxgen in ground state has 0, as oxidation number.

In peroxide, the H acts with +1 but  the oxygen acts with -1.

Peroxide is making the oxidation number from the O in the ClO₂, to decrease (reduction) and to increase in the O, at the ground state.

Hydrogen peroxide is a good reducing and oxidizing agent at the same time.

4 0
3 years ago
. Round to the nearest whole number
laila [671]

Answer:

21091mg of aspirin the person need to consume

Explanation:

To solve this question we must find the mass of the person in kg. Knowing the lethal dose for aspirin is 400mg/kg of person, we can find the amount of aspirin that the person need to consume to get a lethal dose:

<em>Mass person:</em>

116lb * (1kg / 2.2lb) = 52.7kg

<em>Lethal dose:</em>

52.7kg * (400mg / kg) =

<h3>21091mg of aspirin the person need to consume</h3>
3 0
3 years ago
Odor extensive or intensive
slava [35]

Answer:

Odour is intensive

Explanation:

intensive properties are Independent of the amount of matter

6 0
3 years ago
At what time of the year can the sun be found at the zenith
Step2247 [10]

Answer: The Sun Could Be Seen Once during the year when north of the equator.

3 0
3 years ago
What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?
Rus_ich [418]
If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component = \frac{number of moles of component}{total number of moles of all components }
number of moles of ethanol - 3.00 mol
total number of moles in mixture - 3.00 + 5.00 = 8.00 mol 

mole fraction of ethanol = \frac{3.00 mol}{8.00 mol }
mole fraction of ethanol is 0.375
6 0
3 years ago
Other questions:
  • How many bromine molecules are in 250 g of bromine? (R
    12·1 answer
  • What is the main source of energy in a clear water stream in an open area
    13·2 answers
  • How many milliliters of water are needed to prepare a 3.5M solution of NaOH if you have .5mol of the solute
    6·1 answer
  • How are atomic emission spectra used to identify elements? A) As the atom emits photons at precise frequencies it creates a simi
    14·2 answers
  • Chemical equations
    10·2 answers
  • when an atom is decaying, what number of half lives or percent does it need to decay to to become it's daughter element?
    13·1 answer
  • Take a look at this dandelion. The yellow flower on the right is _______ pollinated and the seeds on the left are transported by
    15·2 answers
  • Will Mark Brainly if correct.
    7·1 answer
  • Which element below has the highest electronegativity? beryllium, carbon, fluorine, nitrogen
    8·2 answers
  • How many mol of C7H16 would you have if you have 76.36 grams? Give your answer to 2 decimal spaces.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!