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almond37 [142]
3 years ago
11

MOLE TO ATOM CONVERSIONS

Chemistry
1 answer:
Advocard [28]3 years ago
7 0

Answer:

Answers are given below.

Explanation:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1) 0.680 moles of H₂S

0.680 mol × 6.022 × 10²³ molecules / 1mol

4.09× 10²³ molecules

2) 8.96 moles of KI

8.96 mol × 6.022 × 10²³ molecules / 1mol

53.96 × 10²³ molecules

3) 6.500 moles of KClO

6.500 mol × 6.022 × 10²³ molecules / 1mol

39.143 × 10²³ molecules

4) 0.950 moles of NaOH

0.950  mol × 6.022 × 10²³ molecules / 1mol

5.721 × 10²³ molecules

5) 4.73 moles of Na₂CO₃

4.73  mol × 6.022 × 10²³ molecules / 1mol

28.48 × 10²³ molecules

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andreev551 [17]

The average atomic mass of the imaginary element : 47.255 amu

<h3>Further explanation  </h3>

The elements in nature have several types of isotopes  

Isotopes are elements that have the same Atomic Number (Proton)  

Atomic mass is the average atomic mass of all its isotopes  

Mass atom X = mass isotope 1 . % + mass isotope 2.% ..

isotope E-47 47.011 amu, 87.34%

isotope E-48 48.008 amu, 6.895

isotope E-49 50.009 amu, 5.77%

The average atomic mass :

\tt avg~mass=0.8734\times 47.011+0.06895\times 48.008+0.0577\times 50.009\\\\avg~mass=41.059+3.310+2.886\\\\avg~mass=47.255~amu

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3 years ago
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yulyashka [42]

robert hooke and his microscopeExplanation:

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anyanavicka [17]

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Explanation:

hope this helps :)

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