2 Answers

Manymanymore · Answer 1 · 2023-05-11T23:49:12+0000

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Here we go ~

lets calculate Molar mass of
${\sf CO_2}$ :

$\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 12 + 2(16)$

[ Molar mass of
${\sf \: CO_2 }$ = Molar mass of Carbon + 2×( Molar mass of Oxygen )]

$\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 12 + 32$

$\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 44 \: g$

[ i.e 1 mole of
${\sf CO_2}$ weights 44 grams ]

So, by unitary method :

$\qquad \sf  \dashrightarrow \: 1 \: \: mole \: \: CO_2 = 44 \: \: g$

$\qquad \sf  \dashrightarrow \: 4 \: \: moles \: \: CO_2 = (44* 4) \: \: g$

$\qquad \sf  \dashrightarrow \: 4 \: \: moles \: \: CO_2 = 176 \: \: g$

Therefore, 4 moles of CO2 weights 176 grams

Pravs · Answer 2 · 2023-05-16T14:04:40+0000

176g

The first thing we need to do is calculate the mass of one mole of carbon dioxide, and we get:

(Mass of Carbon) + (Mass of 2 Oxygen atoms) = Molar mass

Therefore, carbon dioxide has a molar mass of 44 grams, which is the mass of the gas

In order to determine the mass of 4 molecules of carbon dioxide, we need to multiply it by 4 × 44 = 176g.

Hope this helps :)