# How many representative particles are in 4.15 g of a molecular compound with a molar

How many representative particles are in 4.15 g of a molecular compound with a molar

mass of 237 g/mol?

1 mole 6.02x10²³ molecules
4.00 moles ( molecules )

molecules = 4.00 x ( 6.02x10²³) / 1

molecules = 2.41x10²⁴ / 1

=  2.41x10²⁴ molecules

hope this helps!

3.68 x 10^21 particles

Explanation:

1 mole of any substance has 6.02 x 10^23 atoms

Since 1 mole is the same as molar mass of a substance

237 g = 6.02 x 10^23 atoms

1.45g = Z atoms

To get the value of Z, cross multiply:

(Z atoms x 237g) = (6.02 x 10^23 atoms x 1.45g)

237Z = 8.729 x 10^23

Z = (8.729 x 10^23 / 237)

Z = 3.68 x 10^21

Thus, there are 3.68 x 10^21 representative particles in 1.45 g of the molecular compound.

3.68•10^21 particles (correct to 3SF)

Explanation:

1.45 • xg molecular compound • 1mol/237g • (6.02•10^23)/ 1 mol = 3.6831•10^21 representative particles

(1.45/237) x 6.02x10^23=  0.0368x10^23=3.68x10^21

Explanation:

1) B    2) both a and c

24 silver atoms.

Explanation:

11.5 moles of silver atoms will have = 11.5×6.022×1023=6.925×1024 11.5 × 6.022 × 10 23 = 6.925 × 10 24 silver atoms.

Hope this helps!

Brain-List?

3.683×10^21 particles

Explanation:

Number of particles in a substance = (mass of the substance/molar mass of the substance)×Avogadro's number

Given;

Mass of compound =1.45g

Molar mass of compound =237g

Therefore, number of particles = (1.45/237)×6.02×10^23

=3.683×10^21 particles

54.26 × 10²³ representative particles

Explanation:

Given data:

Number of moles of water = 9.01 mol

Number of representative particle = ?

Solution:

one mole of any substance contain 6.022 ×10²³ representative particles.

9.01 mol × 6.022 ×10²³ representative particles

54.26  ×10²³ representative particles

The number 6.022 × 10²³ is called Avogadro number.

"It is the number of atoms , ions , molecules or representative particles  in one gram atom of element, one gram molecules of compound and one gram ions of a substance "

6.78 x6.02x10^23=4.08x10^24

Explanation:

Explanation:

According to Avogadro's number, in 1 mole there are atoms or particles.

Since, it is given that there is 4.00 mole sample of a substance. Therefore, calculate the number of representative particles present in it as follows. atoms/mol

= 24.092 atoms

Thus, we can conclude that there are 24.092 atoms in a 4.00 mole sample of a substance.

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