If you're asking how far would it run on battery only, the answer is nowhere. The CRZ hybrid system is assist-only, the gas engine is always running and the electric motor only provides assist on demand. The car is not capable of operating on electric power only.
If you are asking total range at that speed it will vary a lot depending on road conditions, condition of the IMA battery in your particular CR-Z, Air temp, engine mode, MT or CVT, Cuise control on or not etc. not to mention getting the IMA battery to 8 Bars. The IMA gauge as @PeterPerkins has told us is not accurate for actual State of charge. Especially after the update that was done to the CR-Z. Go read his postings on all of this. He is the expert.
The furthest I ever drove mine was over 430 miles on a tank but speed varied but usually at speed limit or 10 above for the area.
What are you really asking? The gauges in your car will give you the answer after you drive the car. IMO there are too many variables to give definitive answer to your query.
@NY-Z is correct this car has no 100% electric capability. If you think it does then you bought the wrong hybrid.