Answer:d
Explanation:I’m not 100% sure how to explain it but I’m almost for sure it’s d.
It is soluble in water and slightly soluble in ethanol.
Answer:
The absorbance of the myoglobin solution across a 1 cm path is 0.84.
Explanation:
Beer-Lambert's law :
Formula used :



where,
A = absorbance of solution
c = concentration of solution
= Molar absorption coefficient
l = path length
= incident light
= transmitted light
Given :
l = 1 cm, c = 1 mg/mL ,
Molar mass of myoglobin = 17.8 kDa = 17.8 kg/mol=17800 g/mol
(1 Da = 1 g/mol)
c = 1 mg /mL = 

1 mg = 0.001 g, 1 mL = 0.001 L


The absorbance of the myoglobin solution across a 1 cm path is 0.84.