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Radda [10]
2 years ago
6

A student uses visible spectrophotometry to determine the concentration of CoCl2(aq) in a sample solution. First the student pre

pares a set of CoCl2(aq) solutions of known concentration. Then the student uses a spectrophotometer to determine the absorbance of each of the standard solutions at a wavelength of 510nm and constructs a standard curve. Finally, the student determines the absorbance of the sample of unknown concentration.
A wavelength of 510nm corresponds to an approximate frequency of 6×1014s−1. What is the approximate energy of one photon of this light?

9×1047J
3×1017J
5×10−7J
4×10−19J
Advanced Placement (AP)
1 answer:
Rina8888 [55]2 years ago
6 0

Answer:

E = 4 × 10⁻¹⁹ J

Explanation:

It is given that,

Wavelength = 510 nm

Frequency = 6\times 10^{14}\ Hz

We need to find the approximate energy of one photon of this light. The formula for the energy of a photon is given by :

E=hf\\\\=6.63\times 10^{-34}\times 6\times 10^{14}\\\\=3.97\times 10^{-19}\ J

or

E = 4 × 10⁻¹⁹ J

Hence, the correct option is (d).

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Answer:

The correct answer is A. organizing.

Explanation:

Organizing is the quality of being able to put your work as to be as efficient as possible. As the definition above says, <em>organizing includes finishing or getting rid of the no important stuff and, as a consequence, directing our attention to the priority tasks. </em>

The response C. is very similar to organizing, but it is a part of it. We can say that organizing includes prioritizing (which is the act of deciding what thing has greatest level of importance and needs to be done first.

Consequences mean the relationship between the reason and the result. In this example, we lack the outcome that would make us focus on important tasks.

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3 years ago
Once Klara was diagnosed with breast cancer, she dedicated her life to helping others experience quality lives no matter what ci
NISA [10]

Answer:

B. Klara's master status.

Explanation:

Sociology can be defined as a social science that deals with the study of the socio-cultural interaction of humans with respect to the structure, functioning and development of their society.

The main purpose of sociology is to develop and enhance human knowledge or understanding of important socio-cultural processes through the gathering and analysis of all aspects of the social life of the people living in a society.

A sociologist refers to an individual (scientist) that studies sociology i.e a social scientist.

This ultimately implies that, sociologists study how society affects a group of people and how the people affect the society in return.

A master status can be defined as a definite social position (status) of an individual which typically shapes his or her relationships or interactions with others. Thus, it dominates every other social positions and as such, it's considered to be one of the greatest status in the life of an individual.

Furthermore, a master status is based on factors (status) such as gender, religion, occupation, race, education, ethnicity, sickness, etc.

Basically, a master status for some may include being diagnosed with cancer or acquired immune deficiency syndrome (AIDS).

In this scenario, Klara dedicated her life to helping others experience quality lives no matter what circumstances they faced, haven been diagnosed with breast cancer. This best demonstrate Klara's master status.

3 0
3 years ago
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Explanation:

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Use no more than 3 iterations and 3 significant figures.

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