How many grams of concentrated nitric ac...

How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M `HNO_(3)` ? The concentrated acid is `70%HNO_(3)`.

A

54.0 g conc. `HNO_3`

B

45.0 g conc. `HNO_3`

C

90.0 g conc. `HNO_3`

D

70.0 g conc. `HNO_3`

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