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
MAVERICK [17]
3 years ago
9

Based on the tiles shown, how many moles of oxygen gas (o2) are needed to produce 36.04 grams of water (h2o) when reacting with

excess ethane in the equation 2c2h6 7o2 → 5co2 6h2o?
Chemistry
1 answer:
madreJ [45]3 years ago
3 0
We calculate for the number of moles of water given its mass by dividing the given mass by the molar mass. 
                               n water = (36.04 g) / (18 g/mol) 
                                n water = 2 mols
From the given balanced equation, every 6 moles of water produced will require 7 moles of oxygen.
                                n oxygen = (2 mols H2O) x (7 moles O2 / 6 moles H2O)
                                n oxygen  = 2.33 mols O2
You might be interested in
One sound is loud and another is quieter. What must be different about these two sound waves?
tankabanditka [31]
Loudness of the sound depends on the "Amplitude" as loudness is different for two waves, their Amplitude must be different

In short, Your Answer would be "Amplitude"

Hope this helps!
3 0
3 years ago
Solid sodium iodide is slowly added to a solution that is 0.0050 M Pb 2+ and 0.0050 M Ag +. [K sp (PbI 2) = 1.4 × 10 –8; K sp (A
UkoKoshka [18]

Answer:

[Ag⁺] = 5.0x10⁻¹⁴M

Explanation:

The product solubility constant, Ksp, of the insoluble salts PbI₂ and AgI is defined as follows:

Ksp(PbI₂) = [Pb²⁺] [I⁻]² = 1.4x10⁻⁸

Ksp(AgI) = [Ag⁺] [I⁻] = 8.3x10⁻¹⁷

The PbI₂ <em>just begin to precipitate when the product  [Pb²⁺] [I⁻]² = 1.4x10⁻⁸</em>

<em />

As the initial [Pb²⁺] = 0.0050M:

[Pb²⁺] [I⁻]² = 1.4x10⁻⁸

[0.0050] [I⁻]² = 1.4x10⁻⁸

[I⁻]² = 1.4x10⁻⁸ / 0.0050

[I⁻]² = 2.8x10⁻⁶

<h3>[I⁻] = 1.67x10⁻³</h3><h3 />

So, as the [I⁻] concentration is also in the expression of Ksp of AgI and you know concentration in solution of I⁻ = 1.67x10⁻³M:

[Ag⁺] [I⁻] = 8.3x10⁻¹⁷

[Ag⁺] [1.67x10⁻³] = 8.3x10⁻¹⁷

<h3>[Ag⁺] = 5.0x10⁻¹⁴M</h3>

6 0
3 years ago
BTW IT IS SCIENCE
Sliva [168]
The answer is A warm air rises cool air sinks

4 0
3 years ago
Read 2 more answers
Where is the mass of an atom found
Virty [35]

Answer:

The mass of an atom is found in its nucleus.

Explanation:

An atom is made of three different particles: protons, neutrons and electrons.

Protons (positive charge) and neutrons (no charge) each have a mass of 1 AMU. They are both found in the nucleus (centre) of the atom.

Electrons (negative charge) are considered to have a mass of 0. Their mass is not actually 0, but very close so we do not count them. They are not in the nucleus, but found in shells surrounding the atom.

To calculate the mass of an atom, we add the number of protons and the number of electrons.

m = P + N

5 0
3 years ago
Virus Multiplication-Viruses can make copies of themselves only inside a living____cell.
shutvik [7]

Answer:

Host

Explanation:

Viruses are not alive. They need a living host cell to reproduce.

4 0
2 years ago
Other questions:
  • According to one acid-base theory, the H2O(l) molecules act as a...
    14·2 answers
  • Which SI units can be used to describe an object’s volume?
    15·1 answer
  • Properties that can be seen through direct observation are called
    14·1 answer
  • What<br>was the initial volume of the hydrogen in cm3?​
    6·2 answers
  • Calculate the number of atoms of each element and the total number of atoms contained in 2.50 moles of Al2(SO4)3.
    13·1 answer
  • The model of a “sea of electrons” helps explain ____.
    8·2 answers
  • Which of the following is an example of genetic engineering
    14·2 answers
  • In a mixture of hydrogen and nitrogen gases, the mole fraction of nitrogen is 0.333. If the partial pressure of hydrogen in the
    5·1 answer
  • Which of the following processes are physical changes? Mark all
    10·1 answer
  • What type of chemical reaction is the reaction below?Fe2O3 + 3 Mg --&gt; 2 Fe + 3 MgO
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!