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2 years ago

What is the mass of 1.0 x 10-3 mole of Zn? 3.9 x 1022 0.065 0.000015

Chemistry

2 answers:

Luda [366]2 years ago

8 0

1.0 x 10^-3 x 65.38 = 0.0654 g Zn

denpristay [2]2 years ago

6 0

Answer:

0.06538 g

Explanation:

Moles of the element = Mass of the element/ Atomic mass of the element

Given,

Moles of Zn = 1.0 x 10⁻³ mol

Atomic mass of Zn = 65.38 amu (atomic mass unit)

Mass of Zn = moles of Zn x atomic mass of Zn = 1.0 x 10⁻³ x 65.38 = 65.38 x 10⁻³ g

Expressing 65.38 x 10⁻³as a decimal we have,

Mass of Zn = 0.06538 g

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