Chemistry, asked by litzycamacho679, 5 months ago

Determine the number of atoms in 2.50 mole of Calcium.

Answers

Answered by devanshujeet

2

Answers

No. of gram atoms= given mass/atomic mass2.5=x/40x=40*2.5=100g

Answered by ashauthiras

1

Answer:

Given that,

Number of particles =

No. of moles of Ca atoms = 2.5 mol

Avogadro's no. = 6.022 × 10^23

Now by using the formula ,

No. of moles = No. of particles / Avogadro's no.

2.5 = No. of particles / 6.022 × 10^23

=> No. of particles = 2.5 × 6.022 × 10^23

∴ No. of particles of Ca atoms = 15.05 × 10^23

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