How many moles of CO2 are present in 176 g of CO2?

To calculate the number of moles of CO2 present in 176 g, we need to use the molar mass of CO2.

The molar mass of CO2 is:

1 x (molar mass of C) + 2 x (molar mass of O)
= 1 x (12.01 g/mol) + 2 x (16.00 g/mol)
= 12.01 g/mol + 32.00 g/mol
= 44.01 g/mol

Using the molar mass of CO2, we can calculate the number of moles:

Moles = Mass / Molar mass
Moles = 176 g / 44.01 g/mol
Moles = 3.998 moles

Therefore, there are approximately 3.998 moles of CO2 present in 176 g.