dirk6
contestada

What is the number of moles of CO2 in a 220.-gram sample of CO2 (gram-formula mass = 44 g/mol)?
1. 0.20 mol
2. 5.0 mol
3. 15 mol
4. 44 mol

Respuesta :

Answer:

the answer is 5.0moles of CO2

Explanation:

if you have done conversion of moles to grams and vice versa

then this might be easy but this should help:

so if you have grams you just divide the given mass by the formula mass.

ie 220g CO2/44 g/mol= 5.0moles

ps i hope this helps

samueladesida43

The number of moles of CO2 in a 220gram sample of CO2 is 5 moles.

HOW TO CALCULATE NUMBER OF MOLES:

The number of moles of a substance can be calculated by dividing the mass of the substance by its molar mass. That is;

no. of moles = mass ÷ molar mass

According to this question, 220gram sample of CO2 with a gram-formula mass of 44 g/mol was given. The number of moles in this sample is:

mole = 220 ÷ 44

mole = 5mol

Therefore, the number of moles of CO2 in a 220gram sample of CO2 is 5 moles.

Learn more about moles at: https://brainly.com/question/14919968

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