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
klio [65]
3 years ago
6

Which best describes the effect of j.j. thompsons theory

Chemistry
1 answer:
dangina [55]3 years ago
8 0
 The accepted model of the atom was changed.
You might be interested in
N writing a chemical equation that produces hydrogen gas, the correct representation of hydrogen gas is
andrezito [222]
Need more information
4 0
3 years ago
What is the volume of 14.0g of nitrogen gas at STP?
lozanna [386]

Answer:

  • <em>The volume of 14.0 g of nitrogen gas at STP is </em><u><em>11.2 liter.</em></u>

Explanation:

STP stands for standard pressure and temperature.

The International Institute of of Pure and Applied Chemistry, IUPAC changed the definition of standard temperature and pressure (STP) in 1982:

  •   Before the change, STP was defined as a temperature of 273.15 K and an absolute pressure of exactly 1 atm (101.325 kPa).

  •    After the change, STP is defined as a temperature of 273.15 K and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).

Using the ideal gas equation of state, PV = nRT you can calculate the volume of one mole (n = 1)  of gas. With the former definition, the volume of a mol of gas at STP, rounded to 3 significant figures, was 22.4 liter. This is classical well known result.

With the later definition, the volume of a mol of gas at STP is 22.7 liter.

I will use the traditional measure of 22.4 liter per mole of gas.

<u>1) Convert 14.0 g of nitrogen gas to number of moles:</u>

  • n = mass in grams / molar mass
  • Atomic mass of nitrogen: 14.0 g/mol
  • Nitrogen gas is a diatomic molecule, so the molar mass of nitrogen gas = molar mass of N₂ = 14.0 × 2 g/mol = 28.0 g/mol
  • n = 14.0 g / 28.0 g/mol = 0.500 mol

<u>2) Set a proportion to calculate the volume of nitrogen gas:</u>

  • 22.4 liter / mol = x  / 0.500 mol
  • Solve for x: x = 0.500 mol × 22.4 liter / mol = 11.2 liter.

<u>Conclusion:</u> the volume of 14.0 g of nitrogen gas at STP is 11.2 liter.

6 0
3 years ago
Silicon has a relatively large latent heat of vaporization of 12800 J/g. This indicates that silicon has:
beks73 [17]
I believe it means that it takes a lot of heat in joules to make silicon vaporize so it stays solid until a great deal of heat has been added. By comparison, water has a latent heat of about 2260 joules per gram so vaporizes much more readily than silicon.
3 0
3 years ago
The top of the saturated zone of soil or rocks is called the
Alika [10]

Answer:

Explanation:

The water table or phreatic surface

6 0
3 years ago
Please can someone describe this picture? helppp
satela [25.4K]

Answer:

They are in a periodic table

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the composition of 'Clean dry air'<br><br> - Idk what subject its just science
    10·1 answer
  • Which indicator of a chemical change is shown?
    14·2 answers
  • What is the name for the process of recycling materials that make up the earths crust and mantle
    5·1 answer
  • Dominic made the table below to organize his notes about mixtures. A 1-column table. The first column labeled properties of mixt
    12·2 answers
  • How many electrons in an atom can have the following quantum
    9·1 answer
  • What is the answer pllleeaasseeeee?????
    5·1 answer
  • One mole of H2 S o4 contains off 4.22 into 10 raise to power 24 atoms is it true or false​
    15·2 answers
  • What are the numerical values defined by STP?
    9·1 answer
  • Which of the following is not a natural
    12·2 answers
  • Nitrogen gas is more abundant and I miss her than oxygen however nicer than to be converted into different forms to be used by m
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!