Answer: 3 oxygen atoms!
Explanation: Let me know if I'm wrong, if not I'm happy to help!
532 mg of hemoglobin
Explanation:
The concentration of hemoglobin in the blood is 15.2 g/dL. It we transform the g in mg and the dL in mL we have the value for the concentration to be 15200 mg / 100 mL.
Knowing the concentration we devise the following reasoning:
if there are 15200 mg of hemoglobin in 100 mL of blood
then there are X mg of hemoglobin in 3.5 mL of blood
X = (15200 × 3.5) / 100 = 532 mg of hemoglobin
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mass per volume concentration
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Answer: Molar mass of thyroxine is 776.5 g/mol.
Explanation:
Mass of thyroxine = 0.455 g
Mass of benzene = 10g =0.01kg (1 kg = 1000 g)
Formula used :
where,
= change in freezing point =
= freezing point constant =
m = molality
Now put all the given values in this formula, we get
Thus molar mass of thyroxine is 776.5 g/mol.