All categories

3 years ago

Can someone please please help me out ?

Chemistry

1 answer:

GarryVolchara [31]3 years ago

6 0

Answer:

4.823 x 10^-19 J

Explanation:

Energy is calculated by E = hv where h - Planck's constant in joule.s

v - frequency.

in this particular question the wave length is 4.12 x 10^-7 m. to exhaustively use this we need a relation between wave length & frequency. c=wv where C is approximately 3 x 10^8m/s

-v = c/w = 3x10^8m/s / 4.12 x 10^-7m = 7.28 x 10^14 Hz or 1/sec

now we can simply use Planck's constant in E=hv =

(6.626 x 10^-34) x (7.28 x 10^14Hz) = 4.823 x 10^-19 J.

You might be interested in

2 N H 3 ( g ) ⟷ N 2 ( g ) + 3 H 2 ( g ) K p = 0.83 Consider your answers above, if the initial pressures for all three species i

OlgaM077 [116]

Explanation:

$\geqslant \sqrt[ \leqslant \geqslant \sqrt[ log_{ \sqrt[ \geqslant | | \binom{ \geqslant l log_{ \sec(o \gamma \geqslant v\%e) }(if) }{your} | | \times \frac{heart}{broe \\ \%\} ]{broke} }(answer) ]{the} \times \frac{fact}{with} ]{lovely} \times \frac{than}{more}$

5 0

3 years ago

If you are asked to compare matter in solid, liquid, and gaseous states, which statement best defines a gas?

Natali [406]

<span>The answer is A. Gases are spread throughout the air and not packed tightly together. therefore the molecules move quickly and are least densely packaged. They have the highest energy because they also have the highest molecular motion. </span>

5 0

3 years ago

Read 2 more answers

What are lower and higher energy levels.

kozerog [31]

Answer:

If an atom, ion, or molecule is at the lowest possible energy level, it and its electrons are said to be in the ground state. If it is at a higher energy level, it is said to be excited, or any electrons that have higher energy than the ground state are excited

Explanation:

pls mark brainliest

8 0

3 years ago

P⁻³ electronic structure

lukranit [14]

Answer:

The phosphate anion (PO4 3-) represents the fully ionized form of phosphoric acid (H3PO4).

5 0

3 years ago

where are the first repost of new scientific discoveries published A.) Internet Sites B.) Magazines C.) encyclopedias D.) Scient

anygoal [31]

Answer:

Explanation:

3 0

3 years ago

Read 2 more answers