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3 years ago

11) How many moles of CO2 can be produced from 5.0 moles of O2?

Chemistry

1 answer:

Paraphin [41]3 years ago

5 0

Answer:

3.6 moles

Explanation:

5.0moles produce 44g/x will produce 32g the answer is a3.6moles

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A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.150 g of this subunit w

max2010maxim [7]

<u>Answer:</u> The molar mass of the protein is 13392.86 g/mol

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iMRT$

where,

$\pi$ = osmotic pressure of the solution = 0.138 atm

i = Van't hoff factor = 1 (for non-electrolytes)

M = molarity of solute = ?

R = Gas constant = $0.0820\text{ L atm }mol^{-1}K^{-1}$

T = temperature of the solution = $28^oC=[273+28]=301K$

Putting values in above equation, we get:

$0.138atm=1\times M\times 0.0820\text{ L.atm }mol^{-1}K^{-1}\times 301K\\\\c=0.0056M$

To calculate the molecular mass of solute, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Molarity of solution = 0.0056 M

Given mass of protein = 0.150 g

Volume of solution = 2 mL

Putting values in above equation, we get:

$0.0056M=\frac{0.150\times 1000}{\text{Molar mass of protein}\times 2}\\\\\text{Molar mass of protein}=13392.86g/mol$

Hence, the molar mass of the protein is 13392.86 g/mol

6 0

3 years ago

If you take energy away from oxygen, will it turn into water? If not, then what will turn into water if you take away energy fro

myrzilka [38]

Take heat away from oxygen and it becomes liquid oxygen. Take heat away from steam and it becomes liquid water.

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3 years ago

The following characteristics describe which of these terms? the substance is not uniform in appearance and each part of the mix

Katyanochek1 [597]

B. Heterogeneous mixture

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3 years ago

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What happens to the buoyant force on an object as it is lowered into water?

PSYCHO15rus [73]

The buoyant force is the upward force or thrust...Simply, consider immersing your hand into a bucket of water. What happens to it? It raises (a little). The raising is due to the buoyant force. Basically it is the upward force/thrust that acts on any object immersed into a fluid. Hence why things float when out in water. Hope this helped!!

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3 years ago

A higher amplitude means...?

vekshin1

Answer:

High amplitude is equivalent to loud sounds.

Explanation:

Larger the amplitude, the higher the energy. In sound, amplitude refers to the magnitude of compression and expansion experienced by the medium the sound wave is travelling through. This amplitude is perceived by our ears as loudness.

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2 years ago