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STatiana [176]
3 years ago
13

How does a chemist count the number of particles in a given number of moles of a substance?

Chemistry
1 answer:
jolli1 [7]3 years ago
8 0
The chemist the count the number of particles (Atoms, Molecules or Formula Unit) in a given number of moles of a substance by using following relationship.

                              Moles  =  # of Particles / 6.022 × 10²³

Or,

                              # of Particles  =  Moles × 6.022 × 10²³

So, from above relation it is found that 1 mole of any substance contains exactly 6.022 × 10²³ particles. Greater the number of moles greater will be the number of particles.
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What is the chemical formula for the compound magnesium perchlorate? Use the list of polyatomic ions and the periodic table to h
8_murik_8 [283]

The chemical formula for the compound magnesium perchlorate is Mg(ClO₄)₂

Magnesium perchlorate or Mg(ClO₄)₂ is an ionic compound.

Perchlorate here is an anion which is represented by ClO₄⁻. Perchlorate is a polyatiomic anion, where one Cl atom is bonded to four O atoms.

The magnesium cation is represented by Mg²⁺

So one Mg²⁺ cation combines with two ClO₄⁻ anion to form one molecule of Mg(ClO₄)₂


6 0
3 years ago
What is balance equation
satela [25.4K]
Search it up on google
7 0
4 years ago
Read 2 more answers
in the reaction H2 + N2 2 NH3, what coefficient should be placed in front of o2 to balance the reaction
Black_prince [1.1K]
In order to balance this equation you need to count each element and how many of the individual elements are in the equation. _H2+N2=2 NH3 You multiply the 2 (Which is the coefficient) by the 3 (which is the subscript) This would equal 6 which indicated there are 6 hydrogen atoms on the right side so the left side should also have 6 hydrogen atoms
The missing coefficient on the left side must multiple the 2 to become 6 hydrogen Answer=3
 

3 0
4 years ago
An atom with a different number of neutrons than another atom of the same element is called a(n) ________.
valentina_108 [34]

Answer:

A. Isotope

Explanation:

For example you have Carbon 12  with 6 protons and 6 neutrons and Carbon 14 with 6 protons and 8 neutrons.

6 0
4 years ago
If you have 3.5 moles of ammonia filling 3 liters of space with a temperature of 43 degrees Celsius, what is the pressure in atm
JulsSmile [24]
Well you would do
3.5 times 3 which is 10.5
Then you'd subtract 10.5 by 43 which would be negative 32.5 which is your answer
3 0
3 years ago
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