KO170 What volume (cm3) of 2M HNO3 should be added to 0

If the total amount of your purchases from the seller nikole more than:
- 5 $ the discount is 5%

Sold 0
Refunds 0
Good feedbacks 0
Bad feedbacks 0

170. What volume (cm3) of a 2M HNO3 be added to 0.5 dm3 of 0.12 M HNO3, to obtain a 0.15 M solution of HNO3?