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MArishka [77]
3 years ago
8

3.58 x 1023 molecules of propane C8H8 would occupy how much space at STP

Chemistry
1 answer:
Lynna [10]3 years ago
3 0

Answer: At STP, a mole of gas takes up 22.4 Liters. The 22.4 Liters/mole quantity can be derived from the Ideal Gas Law, PV = nRT, plugging in STP conditions for P and T, and solving for V/n, which gets 22.4 Liters/mole.

Explanation:

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Which of the following shows the correct rearrangement of the the heat equation q = mCpΔT to solve for specific heat?
astra-53 [7]

Answer:

c

Explanation:

6 0
2 years ago
In a reaction 4 NH3 + 5 O2 → 4 NO + 6 H2O, 1 mole of ammonia reacts with 2 moles of oxygen. Which of these is correct after the
Vsevolod [243]

Answer:

  • <em><u>Option B) All the ammonia is consumed</u></em>

Explanation:

<u>1. Balanced chemical equation (given):</u>

   4NH_3+5O_2\rightarrow 4NO+6H_2O

<u>2. Theoretical mole ratios:</u>

    4molNH_3:5molO_2:4molNO:6H_2O

<u>3. Limiting reactant:</u>

When  1 mole of ammonia is combined with 2 moles of oxygen, the mole ratio is:

                 1molNH_3:2molO_2

Hence, one of the reactants will be completely consumed (the limiting reactant) and, after completion, an excess of the other will remain unreacted.

You need to compare the the actual ratio with the theoretical ratio.

  • 4/5 > 1/2

Hence, NH₃ is in less proportion with respect to oxygen than what is theoretically needed, and the former is the limiting reactant.

Therefore, the 1 mole (all) of ammonia will be consumed, while some oxygen will remain as excess.  This is described by the option B) All the ammonia is consumed.

<u />

<u>4. Analyze the other options:</u>

The amount of oxygen that will react is:

    1molNH_3\times5molO_2/4molNH3=5/4molO_2

And the amount that will remain is:

     2molO_2-4/5molO_2=6/5molO_2

Neither option A) nor C) describe that situation.

The amount of water produced is:

    1molNH_3\times 6molH_2O/4molNH_3=1.5molH_2O, which is not described by the option D).

Hence, the correct answer is the option B) All the ammonia is consumed.

6 0
3 years ago
Which group of elements has the most similar chemical properties? (1 point)
enot [183]

Answer:

carbon nitrogen and oxygen

6 0
2 years ago
To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds sodium hydroxide solution to a sample
Cloud [144]

Answer:

The final balanced equation is

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

Explanation:

It is given that sodium hydroxide is added to collect the solid nickel(II) hydroxide product

The empirical equation for this statement is

Ni2+ + NaOH --> Ni (OH)2 + Na+

We will first balance the hydroxide molecule. On the right side there are two OH molecules.

Thus, on the left side we will take 2 sodium hydroxide

Ni2+ + 2NaOH --> Ni (OH)2 + Na+

Now we will balance the sodium ion which are 2 in numbers on the left side and 1 on the right side

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

So, the final balanced equation is

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

8 0
3 years ago
In a piece of metal, what holds the atoms together?
alexandr1967 [171]

Answer:

the positive charges of the nuclei and the negative charges of delocalized electrons

Explanation:

The interatomic forces that joins a piece of metal atoms together are the positive charges of the nuclei and the negative charges of delocalized electrons.

This bond type is the metallic bond.

  • The metallic bond is an attraction between the positive nuclei of all the closely packed atoms in the lattice.
  • Also, the electron cloud jointly formed by all the atoms losing their outermost shell electrons.
7 0
2 years ago
Read 2 more answers
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