One molecule of haemoglobin will combine with four molecules of oxygen. If 1.0 g of haemoglobin combines with 1.53 mL of O, at body temperature `(37^@C)` and a pressure of 743 torr, what is the molar mass of haemoglobin?

Explanation

To find the molar mass of hemoglobin, we will follow these steps:

### Step 1: Calculate the number of moles of oxygen (O₂) using the ideal gas law.

The ideal gas law is given by the equation:
\[ PV = nRT \]

Where:
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