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
AlekseyPX
3 years ago
8

Chromium(III) oxide reacts with hydrogen sulphide gas to form chromium(III) sulphide and water. How many grams of hydrogen sulph

ide are required to produce 324.8 g of chromium(III) sulphide?
Chemistry
1 answer:
ahrayia [7]3 years ago
7 0

Answer:

165.726 g.

Explanation:

  • For the balanced equation:

<em>Cr₂O₃ + 3H₂S → Cr₂S₃ + 3H₂O,</em>

It is clear that 1 mol of Cr₂O₃ and 3 mol of H₂S to produce 1 mol of Cr₂S₃ and 3 mol of H₂O.

  • Firstly, we need to calculate the no. of moles of 324.8 g of chromium(III) sulphide:

no. of moles of Cr₂S₃ = mass/molar mass = (324.8 g)/(200.19 g/mol) = 1.62 mol.

  • Now, we can find the "no. of grams" of H₂S are needed:

<u><em>Using cross multiplication:</em></u>

3 mol of H₂S produces → 1 mol of Cr₂S₃, from stichiometry.

??? mol of H₂S produces → 1.62 mol of Cr₂S₃.

∴ The no. of moles of H₂S are needed = (3 mol)(1.62 mol)/(1 mol) = 4.86 mol.

∴ The "no. of grams" of H₂S are needed = (no. of moles of H₂S)(molar mass of H₂S) = (4.86 mol)(34.1 g/mol) = 165.726 g.

You might be interested in
Which of the following is NOT a derived unit?<br><br>a) <img src="https://tex.z-dn.net/?f=cm%5E%7B3%7D" id="TexFormula1" title="
seraphim [82]

Answer:

c) kg

Explanation:

Kilograms stands alone. It has to be hooked up to another unit for it to be a derived unit.

I am joyous to assist you anytime.

4 0
2 years ago
Read 2 more answers
If mixture didn't exist how would life be different​<br><br>PLEASEEE QUICKKKK
Nataliya [291]

Answer:

boring

Explanation:

without meaning

8 0
3 years ago
Suppose you have made the following hypothesis:
Rudiy27
There are less sharks farther from coral reefs.
5 0
3 years ago
Read 2 more answers
How can you tell from a substance's formula if it is ionic or molecular?
frozen [14]
Once you identify the compound as Ionic<span>, </span>Molecular, or an Acid, follow the individual ... chemicalformulas<span>, write </span>whether<span> the compound is </span>ionic or molecular<span>, and ...</span>
3 0
3 years ago
During early research in nuclear energy, why were scientists surprised that the products from splitting a uranium nucleus had le
creativ13 [48]
Scientists expected that the law of conservation of mass would apply to nuclear fission in terms of the masses of the subatomic particles. In reality, the mass of an atom is not equal to the sum of the masses of the subatomic particles that make it up. This is because of the energy that binds the subatomic particles. This energy has mass and when the bond is broken, the mass of the energy of the bonds is lost resulting to what we now cal, a mass defect.
6 0
3 years ago
Read 2 more answers
Other questions:
  • If given 5.98 x 10^24 atoms of Copper, how many kilograms do you have?
    11·1 answer
  • What would be the effect on your calculated mas percent recovery of Cu if you did not completely react the Mg in the reaction mi
    7·1 answer
  • Why do the ocean currents move from the equator towards the poles?
    12·1 answer
  • Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb calorimeter has a
    9·2 answers
  • FILL IN THE BLANKWORD BANK (can use more than once): less, increases, decreases, greaterNO2Cl(g)+NO(g)⇌NOCl(g)+NO2(g)1.Disturbin
    10·1 answer
  • Y'all help me please!!!
    8·1 answer
  • Convert 5.4 atm to torr
    10·1 answer
  • 1. Which of the following particles are free to drift in metals?
    13·1 answer
  • Which of the following best describes where cellular respiration occurs?
    8·2 answers
  • Conservation of mass and energy
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!