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Kryger [21]
2 years ago
12

What will be the mass of carbon dioxide

Chemistry
1 answer:
Elza [17]2 years ago
4 0
44.01 g/mol is the mass
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In a test of an automobile engine 1.00 L of octane (702 g) is burned, but only 1.84 kg of carbon dioxide is produced. What is th
Reptile [31]

Answer:

The % yield of CO2 is 85.05 %

Explanation:

Step 1: Data given

Mass of octane = 702 grams

Molar mass octane = 114.23 g/mol

Mass CO2 =1.84 kg = 1840 grams

Molar mass of CO2

Step 2: The balanced equation

2C8H18 + 25O2 → 16CO2 + 18H2O

Step 3: Calculate moles of octane

Moles octane = mass octane / molar mass octane

Moles octane = 702.0 grams / 114.23 g/mol

Moles octane = 6.145 moles

Step 4: Calculate moles of CO2

For 2 moles octane we need 25 moles O2 to produce 16 moles CO2 and 18 moles H2O

For 6.145 moles octane we'll have 8*6.145 moles =49.16 moles

Step 5: Calculate mass of CO2

Mass CO2 = moles CO2 * molar mass CO2

Mass CO2 = 49.16 moles * 44.01 g/mol

Mass CO2 = 2163.5 grams

Step 6: Calculate % yield of carbon dioxide

% yield = (actual yield / theoretical yield)*100%

% yield = (1840/2163.5)*100%

% yield = 85.05 %

The % yield of CO2 is 85.05 %

4 0
3 years ago
A brick measures 0.018 dam by 6.5 cm by 17.3 cm. What is the volume of the brick in cubic centimeters
erastova [34]

Answer:

volume of brick= length × breadth × height

=0.000018 ×6.5×17.3

=

7 0
3 years ago
A _____ is a place where magma reaches Earth's surface to become lava, which can come out of an opening called a _____. A. crate
IRINA_888 [86]
The answer is:
D. volcano, fissure :)
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Which body system provides protection of the brain and the spinal cord?
gogolik [260]

Answer:

The bones of the skull and spinal column

Explanation:

The central nervous system is better protected than any other system or organ in the body. Its main line of defense is the bones of the skull and spinal column, which create a hard physical barrier to injury.

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3 years ago
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When electricity flows through water, the water molecules split into molecules of hydrogen and oxygen gas. How many oxygen (O2)
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That would be one oxygen molecule.
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3 years ago
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