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Slav-nsk [51]
3 years ago
10

Calculate the mass in grams of carbon needed to produce 160 g of CO2 in burning: C + O2 --> CO2

Chemistry
1 answer:
Vladimir [108]3 years ago
5 0
160gof CO2×1molof CO2\44g of CO2×1mole of C\1mol of CO2×12g of C\1mole of C=
43.63g of C
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A sample of a gas in a 4L container at 300K has a pressure of 1 atm. If the
zavuch27 [327]

The final pressure of the gas in the container is 4 atm

From the question given above, the following data were obtained:

Initial volume (V₁) = 4 L

Initial temperature (T₁) = 300 K

Initial pressure (P₁) = 1 atm

Final temperature (T₂) = 600 K

Final volume (V₂) = 2 L

<h3>Final pressure (P₂) =?</h3>

  • Using the combine gas equation, we can obtain the final pressure of the gas as illustrated below:

\frac{P_{1} V_{1} }{T_{1}} = \frac{P_{2} V_{2}}{T_{2}}\\\\\frac{1 * 4}{300} = \frac{P_{2} * 2}{600} \\\\

Cross multiply

300 × 2 × P₂ = 4 × 600

600 × P₂ = 2400

Divide both side by 600

P_{2} = \frac{2400}{600} \\\\

<h3>P₂ = 4 atm</h3>

Therefore, the final pressure of gas is 4 atm.

Learn more: brainly.com/question/23558057

4 0
3 years ago
PLEASE HELP THOSE WHO ARE CHEMISTS!! How many molecules are there in 79g of Fe2O3? How many atoms is this?
Shtirlitz [24]
<span><span>1.       </span><span>Fe2O3 or Iron (III) oxide is an organic compound. It contains 3 main oxides of Iron, the iron (II) oxide (FeO) and the iron (II, III) oxide (Fe3O4).

Now, let’s find the number of Molecules are there in 79g of Fe203:
The number of Atoms are there:

Molar Mass of Fe2O3 = 160g / mol.
=> 160g  of Fe2O<span>3  </span>= 6.02 x 1023 Molecules
=> 79g of Fe2O3 = x
Next, find the value of X, in where:
x = (6.02 x 1023 x 79g) / 160g is approximately
x = 2.97 x 1023 molecules.</span></span>



8 0
3 years ago
HELP ASAP WILL GIVE BRAINLIEST
Zielflug [23.3K]

Answer:

B

Explanation:

I had tried my best to get this answer and I had gotten B

sorry if it was not the right answer but I would recommend B

6 0
3 years ago
Read 2 more answers
Which one of the following is a balanced equation?
sattari [20]
I think the answer is b
5 0
3 years ago
Now molecules: ____ molecules of H2 + ____ molecules of O2 → ____molecules of H2O
Valentin [98]

Answer:

4 H2 + 1 O2 = 2 H2O

6 0
4 years ago
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