Question

calculate the mass of the following : 0.4 mole of CO2 molecule( please answer someone )​

Answer 1

Answer:-

The Required Answer Is 17.6 Grams.

Explanation:-

Given:-

• 4 moles of $\tt Co_2$.

To Find:-

• Mass of the $\tt Co_2$ i.e. Carbon Dioxide.

Formula Used:-

$\tt\longrightarrow N = \dfrac{ M}{ M.M.}$

$\orange{ \longrightarrow \boxed{ \red{ \bf M= N\times M. M.}}}$

Where,

• M = Mass of the atom or element.

• N = Number of Moles.

• M.M. = Molecular Mass.

So Here,

• M = ?? [To Find].

• N = 0.4

• M.M. = 44 amu or $\tt\bar{u}.$

Now,

A doubt may come that how we had found out the Molecular mass of Carbon Dioxide.

For this we know that,

• Atomic mass of C = 12 amu.
• Atomic mass of o = 16 amu.

So Atomic Mass of $\bf\underline{Co_2}$:-

= [(12) + (16 × 2)] amu.

= (12 + 32) amu

= 44 amu.

So,

By putting the values in above formula we get,

$\tt\implies M = N\times M.M.$

$\tt\implies M= \bigg(0.4 \times 44 \bigg) \: gm.$

$\large\red{\implies \boxed{ \blue{ \bf M = 17.6 \: gm.}}}$

$\bf\therefore$ Number of moles is 'M'which is equal to 17.6 grams.

Answer 2

Answer:

17.6 grams

Explanation:

N = M/ M. M

0.4 = M/ CO2 ( CO2 = [12*1]+[16*2] ) = 44amu

M = 0.4 * 44

= 4/10 * 44

= 17.6 grams

---hari