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Vanyuwa [196]
3 years ago
12

Which barium nitrate solution requires the greatest moles of solute?

Chemistry
1 answer:
DochEvi [55]3 years ago
6 0

Answer:

The answer to your question is: letter E,  1.77 L of 1.55 M Ba(NO3)2

Explanation:

Formula

Molarity = \frac{moles}{volume (L)}

moles = Molarity x volume (L)

a. 2.58 L of 0.0250 M Ba(NO3)2

moles = (0.025) (2.58)

moles = 0.065 M

b. 19.23 mL of 8.5 × 10−2 M Ba(NO3)2

moles = (8.5 x 10 ⁻²) (0.01923)

moles = 0.0016

c. No right answer.

d. 26.20 mL of 2.21 M Ba(NO3)2

 moles = (2.21)(0.0262)

moles = 0.058

e. 1.77 L of 1.55 M Ba(NO3)2

  moles = (1.55)(1.77)

  moles = 2.74            This solution needs the greatest concentration of

                                    Ba(NO₃)₂

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When .080 moles of propane burn at STP, what volume of carbon dioxide is produced?
ahrayia [7]

Taking into account the reaction stoichiometry and the definition of STP, 5.4 L of carbon dioxide is produced.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • C₃H₈: 1 mole
  • O₂: 5 moles
  • CO₂: 3 moles
  • H₂O: 4 moles

<h3>Moles of CO₂ formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 1 mole of C₃H₈ form 3 moles of CO₂, 0.080 moles of C₃H₈ form how many moles of CO₂?

amount of moles of CO_{2} =\frac{0.080 moles of C_{3} H_{8}x3 moles of CO_{2} }{1 mole of C_{3} H_{8} }

<u><em>amount of moles of CO₂= 0.24 moles</em></u>

<h3>Definition of STP condition</h3>

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

<h3>Volume of CO₂ produced</h3>

You can apply the following rule of three: If by definition of STP 1 mole of CO₂ occupies 22.4 L, 0.24 moles of CO₂ how much volume does it occupy?

volume of CO_{2} =\frac{0.24 molesx22.4 L}{1 mole}

<u><em>volume of CO₂= 5.376 L ≅ 5.4 L</em></u>

Finally, 5.4 L of carbon dioxide is produced.

Learn more about

the reaction stoichiometry:

<u>brainly.com/question/24741074</u>

<u>brainly.com/question/24653699</u>

STP conditions:

<u>brainly.com/question/26364483</u>

<u>brainly.com/question/8846039</u>

<u>brainly.com/question/1186356</u>

6 0
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What two categorical ways of thinking about matter are discussed in the passage?
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Answer:

There's no passage but I can say that matter are that ''thing'' which extend through all Universe, matter is everything. It can be seen or felt as liquid, gas or solid. This changes of its state depend on the amount of energy that is involved.

So, here is used categorical thinking because is a abstract concept that is hard to understand sometimes. It's abstract when we say that matter is all, not  just what we see, but even what we don't see like ''Dark Matter'', which is the majority in the Universe.

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