Answered

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how many moles of carbon dioxide are there in 30.5 grams?

Sagot :

Indrawboyidn

Moles of Carbon dioxide(CO₂) : 0.693

Further explanation  

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12  

1 mole = 6.02.10²³ particles  

While the number of moles can also be obtained by dividing the mass (in grams) by the molar mass of the element or molecule  

So looking for moles we can search in 2 ways  

  • 1 . Avogadro's number

n = N : No

N = number of gas particles  

No = Avogadro number (6.02.10²³)  

n = number of moles  

  • 2. Molar mass

n = m : M

m = mass  

M = relative molecular mass  

Given

mass CO₂ = 30.5 grams

Required

moles CO₂

Solution

Molar mass of CO₂ : 44 g/mol

Input the value :

mol = mass : molar mass

[tex]\tt mol=\dfrac{30.5~g}{44~g/mol}\\\\mol=\boxed{\bold{0.693}}[/tex]

Learn more  

the mole fractions of the solute and the solvent  

https://brainly.ph/question/2062141  

moles of CaCO3  

https://brainly.ph/question/2356002  

the mole ratio of Al to Cl2  

https://brainly.ph/question/2124499

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