The molecular weight of the substance is 30.46 g/mol.
<h3>What is molar mass?</h3>
Molar mass can be defined as the mass is divided by the number of moles of the substance.
Step 1: calculating the moles
Given, the mass is 177 g
Pressure is 1.18 atm.
The volume is 2.30 L
By the formula of ideal gas

Step2 -calculate the molecular weight
The moles are 0.581

Thus, the molecular weight is 30.46 g/mol
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