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3 years ago

Newton's first reaction?

1 answer:

3 0

Perhaps you're mistaking Newton's first law with Newton's first reaction? However, Newton's first law, also known as the law of inertia is the idea that an object at rest stays at rest, and an object in motion stays at motion unless acted upon by outside forces.

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Calculate the mass of butane needed to produce 61.9 g of carbon dioxide

ELEN [110]

Answer:

20.4g

Explanation:

First, we need to write a balanced equation for the reaction of butane to produce carbon dioxide.

When butane undergo Combustion, it will produce carbon dioxide and water as shown below:

2C4H10 + 13O2 —> 8CO2 + 10H2O

Molar Mass of C4H10 = (12x4) + (10x1) = 48 + 10 = 58g/mol

Mass of C4H10 from the balanced equation = 2 x 58 = 116g

Molar Mass of CO2 = 12 + (2x16) = 12 + 32 = 44g/mol

Mass of CO2 from the balanced equation = 8 x 44 = 352g

From the equation,

116g of C4H10 produced 352g of CO2.

Therefore, Xg of C4H10 will produce 61.9g of CO2 i.e

Xg of C4H10 = (61.9 x 116)/352 = 20.4g

Therefore, 20.4g of butane(C4H10) is needed to produce 61.9g of CO2

3 0

3 years ago

Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 ∘C, the vapor pressure of pure be

Kisachek [45]

Answer:

$P_{solution} = 85.3Torr$

Explanation:

Raoult's law is a tool that allows to determine vapour pressure of solutions. The formula is:

$P_{solution} = X_{solvent}P_{solvent}$ (1)

Where

P is Pressure of solution and solvent and X is mole fraction.

Moles of solute and solvent are:

Biphenyl:

11.5g×(1mol /154.21g) = 0.0746mol

Benzene

31.9g×(1mol /78.11g) = 0.408mol

Mole fraction of benzene is:

$\frac{0.408mol}{0.408mol + 0.0746mol}$ = 0.846

Replacing in (1):

$P_{solution} = 0.846*100.84Torr$

$P_{solution} = 85.3Torr$

I hope it helps!

3 0

3 years ago

Genes help determine a person’s traits or characteristics. Scientific investigations into genes have helped scientists solve maj

Free_Kalibri [48]

It should be A
But you have this as chemistry? I think this is like a biology question

6 0

4 years ago

Read 2 more answers

Stellar fusion produces atoms up to and including ___________ Question 51 options: Helium (atomic number 2) Carbon (atomic numbe

Ganezh [65]

Explanation:

Stellar fusion is the nuclear reaction that occurs in stars.
In this reaction, the nuclei build to form heavier elements.
Stars fuse elements of lighter ones to heavier ones
This fusion reaction occurs in their cores.
During this process, a lot of energy is released.
This process is also known as stellar nucleosynthesis as there is a synthesis of the different nucleus.
Stellar fusion produces lighter elements of many types including iron(Fe) and nickel(Ni) in many of the giant stars.
These elements remain trapped in the cores of stars.

3 0

3 years ago

Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?

hodyreva [135]

In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. They are often takes the shape of small round particles attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time.

8 0

3 years ago

Read 2 more answers