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melamori03 [73]
3 years ago
14

How many moles of Fe2O3 are in 231 g of the compound?

Chemistry
1 answer:
Damm [24]3 years ago
6 0
M Fe2O3 = 160
so the answer is 1.44375 moles
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Calculate the volume(in L), at STP, of carbon dioxide produced by the complete combustion of 6.75 lbs of charcoal.
gtnhenbr [62]

535.8 L volume(in L), at STP, of carbon dioxide produced by the complete combustion of 6.75 lbs of charcoal.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Given:

C(s) + O_2(g) ⇒CO_2(g)

1 mole of CO_2(g) is formed from 1 mole of charcoal, that means 1 mole of CO_2(g) is formed from 12 g of charcoal.

1 lbs = 453.592 grams

6.75 lbs = 6.75 x 453.592 =3061.746g

So, CO_2(g) formed from 3061.746g of charcoal is:

=\frac{1}{12} x 3061.746g

=255.14 mol.

Now, at STP, the volume of 1 mol of gas =22.4 L

Volume of 255.14 mol of CO_2(g) = 255.14 x 22.4 L

Volume of 255.14 mol of CO_2(g) = 535.8 L

Hence, 535.8 L volume(in L), at STP, of carbon dioxide produced by the complete combustion of 6.75 lbs of charcoal.

Learn more about the ideal gas here:

brainly.com/question/27691721

#SPJ1

3 0
2 years ago
A mixture that settles out upon standing is?
arlik [135]

The answer would be: C) Suspension

<span>Suspension- A mixture from which some of the particles settle out slowly upon standing.

-Heterogeneous
-Greater than 1000 nm in particle size
-Can be filtered
-Can scatter light
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4 0
3 years ago
Going against the natural flow of heat and moving thermal energy from a low temperature to a high temperature is _____.
BARSIC [14]

Answer: The correct answer is "refrigeration".

Explanation:

Refrigeration is the process of rejecting heat from low temperature reservoir and transfers it to high temperature reservoir. Here, the heat is taken from the colder body and reject it to hotter body. The sink is at the lower temperature. The source is at the higher temperature.

In heat engine, the heat is transferred from high temperature reservoir to the low temperature reservoir. It is just opposite of the refrigeration.

Therefore, going against the natural flow of heat and moving thermal energy from a low temperature to a high temperature is refrigeration.

7 0
3 years ago
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The inner core of Earth is solid because of the
olganol [36]
The answer is C. I hope that helps.
3 0
3 years ago
Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formul
Lynna [10]
The formula equation is Ca + F2 = CaF2. 
Hope it helps.

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