How do you impart an IV?

IM, IV - 750 mg every 8 hrs of cefotaxime

Dilute IV with 100 ml of 0.9% NaCl
Concentration: 30 mg/ml
Administer 15-60 min

So 750 mg of the medicine is diluted in 100 ml of 0.9% NaCl
And if its given over 60 minutes, its 100ml/hr
So you set the mechanism to 100ml/hr

But it says concentration is 30 mg/ml. What does that mean? How would one know they're getting the right concentration- 30mg/ml ?
Answers:
Actually the concentration is : 7.5 mg/ml
which is 750mg/100ml = 7.5 mg/ml
Given over 1 hour
I can't see where they are getting 30 mg/ml. The concentration can't receive up to 30 mg/ml unless you dilute it in 25 ml of saline.

Related Questions:
Can you give somebody a lift ibuprofen and neocitran together?   Virus or germs type?   Who does an MRI or CT scan?   Do probiotics in actuality put to death germs?   Is it undisruptive to Mix Hydrocodone and Ritalin?  
  • Rickets mcq step 1 support?
  • Eyesight Improvement?
  • If Prozac increases Serotonin, does that also end Dopamine?