All categories

1 year ago

What is the wavelength for electromagnetic radiation with a frequency of 2.20 x 10^7 Hz?

Chemistry

1 answer:

Lena [83]1 year ago

3 0

Answer:

13.6 m

Explanation:

To find the wavelength, you need to use the following equation:

c = λ · f

In this equation,

-----> c = speed of light (3.0 x 10⁸ m/s)

-----> λ = wavelength (m)

-----> f = frequency (Hz)

You can plug the given values (speed of light and frequency) into the equation and then solve for "λ".

c = λ · f <----- Equation

(3.0 x 10⁸ m/s) = λ · (2.20 x 10⁷ Hz) <----- Insert values

13.6 = λ <----- Divide both sides by 2.20 x 10⁷

You might be interested in

Write the name of CH3 ----CH2 ---- CH3

Olin [163]

Answer:

PROPANE AN ORGANIC HYDROCARBON

Explanation:

5 0

3 years ago

Read 2 more answers

A mouse is placed in a sealed chamber with air at 769.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 a

svlad2 [7]

<u>Answer:</u> The amount of oxygen gas consumed by mouse is 0.202 grams.

<u>Explanation:</u>

We are given:

Initial pressure of air = 769.0 torr

Final pressure of air = 717.1 torr

Pressure of oxygen = Pressure decreased = Initial pressure - Final pressure = (769.0 - 717.1) torr = 51.9 torr

To calculate the amount of oxygen gas consumed, we use the equation given by ideal gas which follows:

$PV=nRT$

where,

P = pressure of the gas = 51.9 torr

V = Volume of the gas = 2.20 L

T = Temperature of the gas = 292 K

R = Gas constant = $62.364\text{ L. Torr }mol^{-1}K^{-1}$

n = number of moles of oxygen gas = ?

Putting values in above equation, we get:

$51.9torr\times 2.20L=n\times 62.364\text{ L. Torr }mol^{-1}K^{-1}\times 292K\\\\n=\frac{51.9\times 2.20}{62.364\times 292}=0.0063mol$

To calculate the mass from given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of oxygen gas = 0.0063 moles

Molar mass of oxygen gas = 32 g/mol

Putting values in above equation, we get:

$0.0063mol=\frac{\text{Mass of oxygen gas}}{32g/mol}\\\\\text{Mass of oxygen gas}=(0.0063mol\times 32g/mol)=0.202g$

Hence, the amount of oxygen gas consumed by mouse is 0.202 grams.

5 0

3 years ago

Help po

e-lub [12.9K]

Answer:

ecosystem:a biological community of interacting organisms and their physical environment.

rainforest: a luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.

major part of rain forest:Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor. Each layer has unique characteristics based on differing levels of water, sunlight, and air circulation.

coral reefs :a ridge of rock in the sea formed by the growth and deposit of coral.

type of coral reefs:fringing reefs, barrier reefs, atolls, and patch reefs

Explanation:

mark me as brainliest and follow me

3 0

3 years ago

Read 2 more answers

In a solution in which [H+]= 1.0 x 10^-5 M is it acidic base or neutral

ozzi

I believe it is acidic

7 0

3 years ago

Write the equilibrium constant expression Kc for the following reaction.2H20(g) ---------> O2(g) + 2H2(g) <---------Do not

Komok [63]

Answer:

$K_c\text{ = }\frac{[O_2][H_2]\placeholder{⬚}^2}{[H_2O]\placeholder{⬚}^2}$

Explanation:

Here, we want to write the equilibrium constant expression

To write this, we raise the concentrations of the reactants and products to the coefficient before them. These concentrations are represented by square brackets in which the chemical formula of the compound is placed

We place the representation of the products over that of the reactants

We have the expression written as follows:

$K_c\text{ = }\frac{[H_2]\placeholder{⬚}^2[O_2]}{[H_2O]\placeholder{⬚}^2}$

7 0

1 year ago