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
uranmaximum [27]
3 years ago
6

How many grams of o2 are required to produce 358.5 grams of zno? 2zn + o2 ® 2zno?

Chemistry
1 answer:
Murrr4er [49]3 years ago
6 0
The balanced equation for the reaction is ;
2Zn + O2 —> 2ZnO
The stoichiometry of O2 to ZnO is 1:2
The mass of ZnO formed - 358.5 g
The number of moles formed - 358.5 g / 81.4 g/mol = 4.4 moles
Therefore number of O2 moles reacted = 4.4 moles /2 = 2.2 mol
Mass of O2 reacted = 2.2 mol x 32 g/mol = 70.4 g
You might be interested in
Write equations to show whether the solubility of either of the following is affected by pH:(b) Ca₃(PO₄)₂.
Vera_Pavlovna [14]

<u>The </u><u>pH </u><u>of the solution is also </u><u>increased.</u>

<u></u>

What is pH and its importance?

  • pH is an important quantity that reflects the chemical conditions of a solution.
  • The pH can control the availability of nutrients, biological functions, microbial activity, and the behavior of chemicals.
  • The pH is then calculated using the expression: pH = - log [H3O+].

  • The solubility of an ionic compound is affected by the hydronium ion concentration.
  • Addition of H₃O⁺ to the anion of a weak acid, increases the solubility of the ionic compound.

Therefore, the pH of the solution is also increased.

Learn more about pH

brainly.com/question/491373

#SPJ4

8 0
2 years ago
What is chlorofluorocarbons <br>explain​
Kryger [21]

Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants. ... Individual CFC molecules are labeled with a unique numbering system

<h3>PLEASE MARK ME AS BRAINLIEST PLEASE PLEASE PLEASE </h3>
3 0
3 years ago
What is the concentration of chloride ion when 16.8ml of a 0.554 M solution of barium chloride is combined with 16.8ml of a 0.59
ozzi

Answer:

The concentration of chloride ion is 2.887 M.

Explanation:

Here we have a combination BaCl₂  and AlCl₃

1 mole BaCl₂ can produce 2 moles chloride ions as follows;

BaCl₂ → Ba²⁺ + 2Cl⁻

Therefore;

0.554  mole BaCl₂ can produce 2×0.554  moles chloride ions;

1 mole AlCl₃ can produce 3 moles chloride ions as follows;

AlCl₃ → Al³⁺ + 3Cl⁻

Therefore;

0.593 mole AlCl₃ can produce 3×0.593 moles chloride ions

Total concentration of chloride ions = 2×0.554 + 3×0.593 = 2.887 moles of Cl⁻ in 2×16.8 ml solution

The concentration of Cl⁻ is 2.887 M

4 0
4 years ago
Should mammoths be re-created and released into the Arctic ecosystem
Maslowich
It honestly depends weather or not they create them the same way 

8 0
4 years ago
Read 2 more answers
6. What parts of a nuclear reactor keep the reaction from
Shalnov [3]

Answer:

B. control rods and moderators

5 0
3 years ago
Read 2 more answers
Other questions:
  • In an equation, the symbol for a substance in water solution is followed by a
    5·1 answer
  • Write down five things that you personally could do in your day-to-day life to help with the problem of climate change. Write do
    5·1 answer
  • A 50.0 ml sample of 0.436 m nh4no3 is mixed with 200ml of 0.320 m nano3. what is the nitrate ion concentration in the resulting
    12·1 answer
  • The formula for sodium phosphate: NaPO4 Na(PO4)3 Na3PO4
    6·2 answers
  • A student heats a sample of hydrate once, and the mass of the sample and the evaporating dish is 16.428 g. After a second heatin
    9·1 answer
  • When magnets come within the magnetic fields of other magnets, they move toward or away from each other, depending on their pole
    15·2 answers
  • If you have a cold drink on your hand, how does heat flow from the drink to your hand and from your hand to drink ?
    15·2 answers
  • Butane burns is shown in the balance chemical equation 2C4H10+1302-&gt;10H2O+8CO2. If 6 mol of butane burns______mol of carbon d
    13·1 answer
  • What is a peer review? *
    9·2 answers
  • Which statement is true about the potential energy diagram for an exothermic reaction? (5 points)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!