Question

If the number of particles in a mole is 6.022*10^23 what is the total mass of 1.2*10^24

Answer 1

Explanation:

Given parameters:

Number of particles = 1.2 x 10²⁴moles

Unknown:

Total mass = ?

Solution:

Although this problem is incomplete, we will solve to a point where you can easily finish up.

A mole of a substance is the quantity of matter that contains the avogadro's number of particles.

  1 mole = 6.02 x 10²³ particles

The particles can be protons, neutrons, electrons, formula units, molecules or atoms.

Therefore, the number of moles in this particles is;

Number of moles = $\frac{1.2 x 10^{24} }{6.02 x 10^{23} }$  = 2 x 10¹ = 20moles

To find the total mass; use the expression below;

  Total mass = number of moles x molar mass

 Total mass = 20 x molar mass

Just find the molar mass and input

learn more:

Molar mass brainly.com/question/2861244

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Answer 2

The number of atoms= Give mass/molar mass×Avogadro number Therefore number of Mg atoms=48÷24×6.022×10*23

=2×6.022×10*23=12.044×10*2

According to question given monoatomic element contain same number of atom that means numbers of atom =12.044×10*23 and given mass=160g

According to formula= Number of atom= Given mass÷molecular mass×6.022×10*23

12.044×10*23= 160÷M×6.022×10*23

=12.044×10*23×M=160×6.044×10*23

M=80u