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AVprozaik [17]
3 years ago
10

Organic molecules always contain __________. carbon and oxygen oxygen and hydrogen carbon, hydrogen, and nitrogen carbon and hyd

rogen
Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
5 0
Carbon and hydrogen atoms
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How many grarns would 3 moles of carbon dioxide (CO2) weigh? (round to the
BigorU [14]

Mass of CO₂ = 132 g

<h3>Further explanation   </h3>

A mole is a number of particles(atoms, molecules, ions)  in a substance

This refers to the atomic total of the 12 gr C-12  which is equal to 6.02.10²³, so 1 mole = 6.02.10²³ particles  

Can be formulated :

N = n x No

N = number of particles

n = mol

No = 6.02.10²³ = Avogadro's number

mole also can be formulated :

\tt n=\dfrac{mass}{MW}

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mass of CO₂(MW=44.01 g/mol) :

\tt mass=mol\times MW\\\\mass=3\times 44.01\\\\mass=132.03~g\approx 132~g

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3 years ago
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Explanation:

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