Question

Mass of 6.022× 10 raise to 22 molecules of CO is about?
A) 1.4 g
B) 2.2g
C) 4.4 g
D) 12 g​

Answer 1

Answer:

Molar mass of CO2 is 44 gram/mol. So,the mass of 1 mole or 6.02*10^23 molecules of CO2 is 44 grams.

Step-by-step explanation:

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Answer 2

Ques. Express Mass of 6.022 x 10 raise to 22 molecules of CO₂ in grams.

A) 1.4 g

B) 2.2g

C) 4.4 g

D) 12 g​

Answer:

The correct answer is option C) $4.4$ g.

Step-by-step explanation:

Concept:

The mass of $= 6.022 * 10^{23}$ atoms, molecules, or formula units of a substance is its molar mass, measured in grammes per mole. In each instance, the number of atomic mass units that describe the atomic mass, molecular mass, or formula mass, respectively, is equal to the number of grams in one mol.

Formula used: No of moles $=$ Given mass/ molar mass

Given that

Number of molecules $= 6.022 * 10^{22}$ molecules

We know that

$6.022 * 10^{23}$ molecules equals one mole.

To find:

We have to find the mass of $CO_{2}$.

Solution:

The molar mass of $CO_{2}$ is $44$ gram/mol.

Mass of $CO_{2}=$ Count of moles $*$ molar mass

Substituting the values in the formula,

Mass of $CO_{2}$ $= 1 mol * 44$

Mass of $CO_{2}$ $= 44 * 0.1g$

Mass of $CO_{2}$ $=4.4$ grams

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