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HELP PLEASE

Which of the following is equal to the number of particles in 18 grams of carbon-12 ?

a. 1.5:1 mole ratio
b. 1.5 moles
c. 1:1.5 molar volume
d. 1.5:1 molar mass

2 Answers

0 votes

Answer:it’s b 1.5 moles

Step-by-step explanation:

User Murali
by
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6 votes

Answer:

1.5 moles

Step-by-step explanation:

Given data:

Mass of Carbon = 18 g

Number of particles = ?

Number of moles = ?

Solution:

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

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

For 18 g carbon:

18 g / 12 g/mol = number of moles

1.5 moles

1.5 × 6.022 × 10²³ particles

9.03 × 10²³ particles

User Sharmila
by
6.0k points