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2 years ago

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.

Chemistry

1 answer:

mihalych1998 [28]2 years ago

7 0

This isn’t anything related to chemistry dude

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Read this excerpt from Emerson’s essay “Self-Reliance” and decide whether it is biased. Explain your answer as well as what you

nadezda [96]

Answer:

In this excerpt, Emerson is in favor of, and stresses the importance of, individual intellect and moral development. He urges readers to look within—into their inner selves to seek inspiration and attain self-reliance rather than imitating others or adopting age-old ideas, which society has practiced over time. He uses examples of great thinkers such as Moses, Milton, and Plato, who thought for themselves and didn’t let society and established ideas influence them. Emerson further stresses that people should not dismiss their own ideas, only to discover them in others’ works, but learn to nurture and accept their potential. When people are able to accept and trust their own thoughts, they will be able to come up with ideas as brilliant and original as those of any wise man.

Explanation:

Hope this helps.

3 0

3 years ago

( 9 + 5 ) + ( 13 + 12 ÷ 4 )

ipn [44]

Answer:

9+5=14

13+12=25

then ÷by 4

or answer is 0.0114285714

Explanation:

first you just think it

3 0

3 years ago

The movement of substances from an area of low concentration to an area of high concentration is called what?

RUDIKE [14]

Answer:

Diffusion

Explanation:

8 0

2 years ago

An "empty" container is not really empty if it contains air. How may moles of nitrogen are in an "empty" two-liter cola bottle a

Lisa [10]

Answer:

1. 0.0637 moles of nitrogen.

2. The partial pressure of oxygen is 0.21 atm.

Explanation:

1. If we assume ideal behaviour, we can use the Law of ideal gases to find the moles of nitrogen, considering that air composition is mainly nitrogen (78%), oxygen (21%) and argon (1%):

$V_{N_2}=V_{T}\times 0.78=2L \times 0.78 =1.56 L\\PV=nRT\\n_{N_2}=\frac{PV}{RT}=\frac{1 atm\times 1.56 L}{0.0821\frac{atmL}{molK}\times 298 K}\\n_{N_2}= 0.0637 mol$

2. Now, in order to find he partial pressure of oxygen we need to find the total moles of air, and then the moles of oxygen. Then, we use these results to determine the molar fraction of oxygen, to multiply it with total pressure and get the partial pressure of oxygen as follows:

$n_{total}=\frac{1 atm \times 2L}{0.0821 \frac{atmL}{molK}298K}=0.0817 mol$

$V_{O_2}=2L \times 0.21 = 0.42 L\\n_{O_2}=\frac {1atm \times 0.42 L}{0.0821 \frac{atm L}{mol K}298 K}=0.0172 mol\\X_{O_2}=\frac{n_{O_2}}{n_{total}}=\frac{0.0172 mol}{0.0817 mol}= 0.21$

$P_{O_2}=X_{O_2} \times P = 1 atm \times 0.21 = 0.21 atm$

As you see, the molar fraction and volume fraction are the same because of the assumption of ideal behaviour.

3 0

2 years ago

1 times 2900 inches for a car

Delicious77 [7]

One times anything is the same number. 1 x 2900= 2900

5 0

3 years ago

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.​

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.