1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
faltersainse [42]
3 years ago
12

The smallest atoms can themselves exhibit quantum-mechanical behavior. Calculate the de Broglie wavelength (in picometers) of a

hydrogen atom traveling at 490 m/s. Express your answer using three significant figures.
Chemistry
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

810 pm

Explanation:

Step 1: Given and required data

  • Velocity of the atom (v): 490 m/s
  • Mass of a hydrogen atom (m): 1.67 × 10⁻²⁷ kg
  • Planck's constant (h): 6.63 × 10⁻³⁴ J.s

Step 2: Calculate the de Broglie wavelength of the hydrogen atom

We will use de Broglie's equation.

λ = h / m × v

λ = 6.63 × 10⁻³⁴ J.s / 1.67 × 10⁻²⁷ kg × 490 m/s = 8.10 × 10⁻¹⁰ m

Step 3: Convert 8.10 × 10⁻¹⁰ m to picometers

We will use the conversion factor 1 m = 10¹² pm.

8.10 × 10⁻¹⁰ m × 10¹² pm/1 m = 810 pm

You might be interested in
True or false: A skeleton equation in chemistry shows the relative amounts of all materials in the reaction
Neko [114]

Answer:

false im pretty sure.

4 0
3 years ago
What is the main difference between an isotope and an ion
eimsori [14]
An isotope is the vary of neutrons in an element, causing its atomic mass to change. While an ion is a charged atom that bonds to be stable. 
6 0
3 years ago
The average weather conditions affecting a biome is called ____.
Salsk061 [2.6K]
The answer is: climate

5 0
3 years ago
The kinetic molecular theory states that all particles of an ideal gas are
Marizza181 [45]

THE KINETIC MOLECULAR THEORY STATES THAT ALL PARTICLES OF AN IDEAL GAS ARE IN CONSTANT MOTION AND EXHIBITS PERFECT ELASTIC COLLISIONS.

Explanation:

An ideal gas is an imaginary gas whose behavior perfectly fits all the assumptions of the kinetic-molecular theory. In reality, gases are not ideal, but are very close to being so under most everyday conditions.

The kinetic-molecular theory as it applies to gases has five basic assumptions.

  • Gases consist of very large numbers of tiny spherical particles that are far apart from one another compared to their size.
  • Gas particles are in constant rapid motion in random directions.
  • Collisions between gas particles and between particles and the container walls are elastic collisions.
  • The average kinetic energy of gas particles is dependent upon the temperature of the gas.
  • There are no forces of attraction or repulsion between gas particles.
5 0
3 years ago
Light energy comes from
Varvara68 [4.7K]

Answer:

the answer of the questionis D Photons

4 0
3 years ago
Other questions:
  • This is edgenuity btw
    15·1 answer
  • Order the relative rate of diffusion of the following gases from slowest to fastest. Kr, N, Ar, Ne.
    7·2 answers
  • if a gas sample has a pressure of 761 mmhg at 0.00°c by how much does the temperature have to decrease to lower the pressure to
    14·1 answer
  • Calculate the volume in liters of a M magnesium fluoride solution that contains of magnesium fluoride . Round your answer to sig
    10·1 answer
  • 1) How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7g Fe? Show your work.
    8·2 answers
  • Because there is a large amount of empty space between gas molecules, the gas has the property of___
    13·1 answer
  • Soil is an example of a:<br> a. solution <br> b. heterogeneous mixture <br> c. solid solution
    15·1 answer
  • Calculate the number of oxygen atoms and its mass in 50g of CaCo3<br>​
    14·1 answer
  • Convert 113 Fahrenheit to celcius do full process​
    9·1 answer
  • What is single and double displacement reaction?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!