The molecular weight of sperm whale myoglobin is 17.8 kDa. 17.8 kDa. The myoglobin content of sperm whale muscle is about 80.0 g ⋅ kg − 1. 80.0 g · kg−1. In contrast, the myoglobin content of some human muscles is about 8.00 g ⋅ kg − 1. 8.00 g · kg−1. Compare the amounts of O 2 O2 bound to myoglobin in human muscle and in sperm whale muscle. Assume that the myoglobin is saturated with O 2, O2 and that the molecular weights of human and sperm whale myoglobin are the same. How much O2 is bound to myoglobin in human muscle?