Solve the all parts of following problem given below:

Problem: You suspect you are anemic and your physician orders some tests. He finds that your hemoglobin is 13%g. The molecular weight of hemoglobin is 66,500 gmol^-1.

Part A: What is the concentration of hemoglobin in molar in your blood?

Part B: Each hemoglobin binds four oxygen molecules. If the hemoglobin is saturated with oxygen, what is the concentration of O2 bound to Hb, in molar?

Part C: Convert the answer to B in volume using the ideal gas equation, PV=nRT, where T is abs. temperature, R=.082 L atm mol^-1 K^-1, V is the volume that we seek, and P=1 atm. The conditions for volume of gas are usually STPD--standard temperature and pressure, dry. The standard temperature is 0C and pressure is 1 atm.

I've been having quite a bit of trouble understanding this problem, Thank You so much for your help. Thanks.