Ask question

Ask question

All categories

2 years ago

10

The yellow light given off by a sodium vapor lamp used for public lighting has a wavelength of 589nm. What is the frequency of t

his radiation? (1m=1x10^9)
*please help*

1 answer:

VikaD [51]2 years ago

6 0

Answer:

Explanation:

Answer:

570 nm

Explanation:

The wavelength of an electromagnetic wave is given by:

\lambda=\frac{c}{f}

You might be interested in

What is an oxidation reaction?

kow [346]

<h3>Definition:</h3>

A reaction when an atom or compound loses one or more electrons.

It is a reaction is a type of chemical reaction that involves a transfer of electrons between two species.

Oxidation is gain of oxygen

<h3>For Example:</h3>

Fe + O2 —(H2O)—> Fe2O3

7 0

2 years ago

A. What is the chemical reaction between hydrogen and sulfur?

DanielleElmas [232]

Answer & Explanation:

At high temperatures or in the presence of catalysts, sulfur dioxide reacts with hydrogen sulfide to form elemental sulfur and water. This reaction is exploited in the Claus process, an important industrial method to dispose of hydrogen sulfide.

6 0

2 years ago

In an electroplating apparatus, where does the reduction reaction occur?

Ludmilka [50]

Answer:

on the surface of the cathode

6 0

1 year ago

The water cycle is the __________________ by which water __________________ through the ____________________ and atmosphere.

zhenek [66]

Answer:

is the process, water circulates , the earth's ocean

Explanation:

7 0

2 years ago

All the substances listed below are fertilizers that contribute nitrogen to the soil.

kvv77 [185]

Answer:

Ammonia is the richest source of nitrogen on a mass percentage basis because it has 82.35% of nitrogen by mass.

Explanation:

Percentage of element in compound :

$=\frac{\text{number of atoms}\times text{Atomic mass}}{\text{molar mas of compound}}\times 100$

(a) Urea, $(NH_2)_2CO$

Molar mass of urea = 60 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 2

$N\%=\frac{2\times 14 g/mol}{60 g/mol}\times 100=46.67\%$

(b) Ammonium nitrate, $NH_4NO_3$

Molar mass of ammonium nitrate = 80 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 2

$N\%=\frac{2\times 14 g/mol}{80 g/mol}\times 100=35.00\%$

(c) Nitric oxide, NO

Molar mass of nitric oxide = 30 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 1

$N\%=\frac{1\times 14 g/mol}{30 g/mol}\times 100=46.67\%$

(d) Ammonia, $NH_3$

Molar mass of ammona = 17 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 1

$N\%=\frac{1\times 14 g/mol}{17 g/mol}\times 100=82.35\%$

Ammonia is the richest source of nitrogen on a mass percentage basis because it has 82.35% of nitrogen by mass.

4 0

3 years ago