Answered

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chemistry:

please help:/

Chemistry Please Help class=

Sagot :

Samueladesida43idn

Answer:

132.0grams

Explanation:

The formula mass of a compound/molecule is calculated by summing the atomic masses of each individual atom in that compound or molecule.

According to this question, the gram-formula mass of CO2 is given as 44g i.e. by adding 12g of C and 2 × 16g of O. 3CO2 means that 3 moles of the same CO2 molecule.

To find the gram-formula mass of 3 moles of CO2, the following formula is used:

Since 1 mol of CO2 contains a formula mass of 44g

3 moles of CO2 (3CO2) will contain 3 × 44g = 132g of CO2.

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