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3 years ago

How many atoms make up a molecule of ethanol? (C2H6O) 3 12 8 9

Chemistry

1 answer:

NISA [10]3 years ago

4 0

Answer:

C2H5OH - 9 atoms

Explanation:

I think you wrote the formula for ethanol wrong but still with the one you wrote it is still 9.

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In the fermentation of glucose (wine making), 790 mL of CO2 gas was produced at 37 ∘C and 1.00 atm . You may want to reference (

Gennadij [26K]

<u>Answer:</u> The volume of the gas when the pressure and temperature has changed is 0.811 L

<u>Explanation:</u>

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

We are given:

Conversion factor used:

1 L = 1000 mL

1 atm = 760 mmHg

$P_1=1.00atm=760mmHg\\V_1=790mL=0.790L\\T_1=37^oC=[37+273]K=310K\\P_2=695mmHg\\V_2=?L\\T_2=18^oC=[18+273]K=291K$

Putting values in above equation, we get:

$\frac{760mmHg\times 0.790L}{310K}=\frac{695mmHg\times V_2}{291K}\\\\V_2=\frac{760\times 0.790\times 291}{310\times 695}=0.811L$

Hence, the volume of the gas when the pressure and temperature has changed is 0.811 L

3 0

3 years ago

The amount by which a machine multiplies an effort force is called ____.

blagie [28]

C. mechanical advantage

3 0

3 years ago

Plzzzzzz help me Write electronic configuratof sodium and chlorine in the term of subshell ?

nalin [4]

Ok Thank u for the information

5 0

3 years ago

Read 2 more answers

The atomic number of an atom is alwaysequal to the number of its. (1) protons, only. (2) neutrons, only. (3) protons plus neutro

Luden [163]

You are correct, the atomic number is always equal to the number of protons in the element. It is the relative atomic mass that is equal to the number of protons+neutrons. Electrons have no mass

6 0

3 years ago

What conditions are needed for heat to flow

Setler79 [48]

Answer:

Two object must have different temperatures

Explanation:

Heat Transfer can occur in 3 ways: Conduction, Convection, and Radiation

4 0

3 years ago