All categories

4 years ago

Can someone plz help me on question 3 I really need help plz

Chemistry

1 answer:

zavuch27 [327]4 years ago

5 0

1. Describe

Frequency (f) and wavelength (λ) are inversely related.

f ∝ 1/λ

As one goes up, the other goes down and vice versa.

2. Infer

The frequency of infrared light is less than that of red light, so infra could mean something like less than or below or beneath.

Ultrahigh frequencies are extremely high compared with those of visible light. Ultrasound has frequencies that are far beyond what we can hear. An ultracentrifuge goes at extremely high speed, and an ultramicroscope can “see” tiny structures. Ultra could probably mean something like extremely or far beyond.

3. Analyze

Energy is directly proportional to frequency (E ∝ f).

Frequency is inversely proportional to wavelength (f ∝ 1/λ).

Energy is inversely proportional to wavelength (E ∝ 1/λ).

You might be interested in

Which formula can be used to calculate the molar mass of ammonia

Nikolay [14]

Answer:

Since there are 3 Hydrogen atoms present, the formula mass of H is 1.0 × 3 = 3.0 g/mol. Therefore, by adding them up, the formula mass of ammonia is: [14.0 g/mol + 3.0 g/mol] = 17.0 g/mol.

7 0

3 years ago

What is ozone ? A) dissolved oxygen B) the main catalyst in photosynthesis C) a type of oxygen D) a form of calcium carbonate

kykrilka [37]

Answer:

Explanation:

ozone is a type of oxygen. It's chemical compound is 03. Just 1 more molecule than regualr oxygen.

Glad I was able to help!!

7 0

3 years ago

Read 2 more answers

What can help to stop soil erosion ?

DanielleElmas [232]

Answer:

just read the explanation.

Explanation:

1.Maintaining a healthy, perennial plant cover.

2.Mulching.

3.Planting a cover crop – such as winter rye in vegetable gardens.

4.Placing crushed stone, wood chips, and other similar materials in heavily used areas where vegetation is hard to establish and maintain.

Hope this helps. :)

4 0

3 years ago

1.25 is closer to 1.04 or not ? plz heelp

konstantin123 [22]

Answer:

No.

Step-by-step explanation:

When looking at numbers after the decimal point, think of the numbers as real numbers.

In 1.25, think of the .25 as just 25.

Since this is after the decimal point, it is 25 of a 100.

Now, is 25 closer to 4 or not?

Of course, the number has a great distance from 4.

-kiniwih426

Read more on Brainly.com - brainly.com/question/25432061#readmore

3 0

3 years ago

Carbonic anhydrase of erythrocytes (Mr 30,000) has one of the highest turnover numbers known. It catalyzes the reversible hydrat

Afina-wow [57]

Explanation:

According to the given data, the turnover number can be calculated as follows.

Turnover number = $K_{cat} = \frac{V_{max}}{\text{Concentration of enzyme}}$

$V_{max} = \frac{\text{Moles of CO_{2} hydrolyzed}{second}$

Therefore, moles of $CO_{2}$ hydrolyzed is as follows.

Moles of $CO_{2}$ hydrolyzed = $\frac{Mass of CO_{2}}{Molar mass of CO_{2}}$

= $\frac{0.30}{44}$

= 0.00682 moles

Now, moles of $CO_{2}$ hydolyzed per second is calculated as follows.

Moles of $CO_{2}$ hydolyzed per second = $\frac{0.00682}{60}$

= $1.137 \times 10^{-4} moles/second = V_{max}$

And,

Moles of enzyme = $\frac{Mass}{\text{Molar mass}}$

= $\frac{10.0 \mu g}{30000}$

= $3.33 \times 10^{-10}$ moles

Therefore, the value of $K_{cat}$ is as follows.

$K_{cat} = \frac{1.137 \times 10^{-4} moles}{3.333 \times 10^{-10} moles}$

= $0.3411 \times 10^{6}$ per second

= $0.3411 \times 60 \times 10^{6}$ per minute

= $20.466 \times 10^{6}$ per minute

Thus, we can conclude that the turnover number ( $K_{cat}$ ) of carbonic anhydrase (in units of $min^{-1}$ ) is $20.466 \times 10^{6}$ per minute.

6 0

4 years ago