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
KIM [24]
3 years ago
8

How many attoms are equal 6.19 moles of hydrogen?​

Chemistry
1 answer:
Wittaler [7]3 years ago
4 0

Answer:

3.727x10^24 atoms.

Explanation:

When calculating how many molecules are in a compound or element, we refer to Avogardo's number.

Your equation will look like this: 1 mole/ 6.022x10^23 molecules (Avogardo's number).

Multiply 6.19 by Avogardo's number to get your answer.

You might be interested in
An unknown compound is processed using elemental analysis and found to contain 117.4g of platinum 28.91 carbon and 33.71g nitrog
dlinn [17]

Answer:

1 mole of platinum

Explanation:

To obtain the number of mole(s) of platinum present, we need to determine the empirical formula for the compound.

The empirical formula for the compound can be obtained as follow:

Platinum (Pt) = 117.4 g

Carbon (C) = 28.91 g

Nitrogen (N) = 33.71 g

Divide by their molar mass

Pt = 117.4 / 195 = 0.602

C = 28.91 / 12 = 2.409

N = 33.71 / 14 = 2.408

Divide by the smallest

Pt = 0.602 / 0.602 = 1

C = 2.409 / 0.602 = 4

N = 2.408 / 0.602 = 4

The empirical formula for the compound is PtC₄N₄ => Pt(CN)₄

From the formula of the compound (i.e Pt(CN)₄), we can see clearly that the compound contains 1 mole of platinum.

8 0
3 years ago
What kind of charge does a neutron have?
Nat2105 [25]
Neutrons actually don't carry an electrical charge, which is why they are called neutrons because they are "Neutral".


6 0
3 years ago
What could you change or add to your models based on what you have learned about molecules and phases so far?
timurjin [86]

Answer:Phase changes require either the addition of heat energy (melting, evaporation, and sublimation) or subtraction of heat energy (condensation and freezing). ... Changing the amount of heat energy usually causes a temperature change.

Explanation:

5 0
2 years ago
Read 2 more answers
Determine the molar mass of the following elements. Include units in your answer.
son4ous [18]
Do the atomic mass times the number of atoms you have. That'll give you your answer. Hope it helps!
8 0
3 years ago
Match these items with their examples.
kiruha [24]
Here you go! Feel free to ask questions!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which is the smallest part of a compound called?
    7·2 answers
  • The student decided to do another experiment with his leftover copper(II) sulfate (CuSO4) solution. He divided the solution up i
    12·1 answer
  • Which compound has the highest melting point?
    6·2 answers
  • Which parts (postulates) of Dalton's atomic theory has been modified in light of later discoveries
    8·1 answer
  • How are humans involved in this cycle
    5·2 answers
  • PLEASE HELP WILL MARK AS BRAINEST!!!!!!!!!!!!
    10·1 answer
  • The bouncing of light when is changes media is called what
    15·2 answers
  • How do electrons move between atoms to create electricity?
    11·2 answers
  • On a ceiling, there were tiny droplets of blood less than 1 mm in diameter. the victim was lying in a pool of blood. no other ma
    7·1 answer
  • In the following neutralization reaction, which substance is the acid?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!