Gasoline is a mixture of compounds. A gasoline sample was found to be 2.851% (by mass) octane (C₈H₁₈). 482.6 g of gasoline is combusted to produce gaseous carbon dioxide and gaseous water.Write out the balanced combustion reaction of octane with oxygen gas to form carbon dioxide and water. Submit an image of the balanced reaction.
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Answer:
See below.
Explanation:
The mass of octane in the sample of gasoline is 0.02851 * 482.6 = 13.759 g of octane.
The balanced equation is:
2C8H18(l) + 25O2(g) ----> 16CO2(g) + 18H2O(g)
From the equation, using atomic masses:
228.29 g of octane forms 704 g of CO2 and 324.3 g of H2O
So the mass of CO2 formed from the combustion of 13.759 g of octane = (704 * 13.759) / 228.29
= 42.43 g of CO2.
Amount of water = 324.3 * 13.759) / 228.29
= 19.55 g of H2O.
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4. Case Studies: In-depth investigations of a particular individual, group, or situation are conducted to gain detailed insights. Case studies are commonly used in psychology, medicine, and sociology.
5. Field Studies: Scientists conduct research directly in the natural environment, collecting data in real-world settings. Field studies are common in geology, environmental science, and wildlife biology.
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Answer:
C
Explanation:
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Answer:
The mechanical weathering is defined as the breaking down of rocks physically due to the agents such wind, water and ice. In addition this, plant roots, abrasion, rainfall and temperature also plays an important role in wearing away the rocks.
When water, wind flows over the rock surfaces, it erodes the rocks and this is known as the abrasion process. The broken particles (sediments) are transported by these agents and deposited at some other place.
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The given parameters:
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The density of the liquid chloroform in pounds per cubic inches (lb/in³) is calculated by multiplying with the appropriate equivalent units as demonstrated below;
Thus, the density of the liquid chloroform in pounds per cubic inches is determined to be 0.0535 lb/in³.
Learn more about conversion of density here: brainly.com/question/13858006
Answer:
Explanation:
Given density of chloroform is 1.48 g/mL
We need to find the density in
Also, we have given 2.54 cm = 1 in and 2.205 lb = 1 kg
We know
Also, 2.54 cm = 1 in
And 1000 g = 1 kg
Now we will plug
So,
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