Question

Q3
the mass of one mole of tri chloride of an atom is 117.5g. what is the atomic mass of the atom? A. 10.5 (B) 11.5 (C) 11 (D) 10
ANSWER CORRECT FAST PLEASE

Answer 1

Answer:

C)11

Explanation:

The mass of one atom of chlorine = 35.5g

Therefore, Mass of trichloride = 35.5 * 3 = 106.5

Therefore, Mass of molecule = mass of atom + 106.5 = 117.5

therefore, mass of atom = 11g

Answer 2

Answer:

The correct answer is: 11

Explanation:

Let the atomic mass of atom be X

Mass of one mole of trichloride of atom=117.5g

Mass of trichloride=35.5*3= 106.5

Now,

Mass of one mole of trichloride=117.5g

106.5+X=117.5g

X=117.5-106.5g

X=11g

Since mass of one chlorine is 35.5

So,mass of trichloride is 35.5*3.

Keywords:

Mole- A mole is defined as 6.0223*10^23 atoms of a physical entity.

Avogadro's nunber:- 6.0223*10^23

Atomic mass:- It is defined as the sum total of number of protons and neutrons.

It is the total mass.

Unit of atomic mass is u i.e. unified atomic mass.

For more references:

https://brainly.in/question/15350594?utm_source=android&utm_medium=share&utm_campaign=question

https://brainly.in/question/14836374?utm_source=android&utm_medium=share&utm_campaign=question

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