How many grams of the concentrated nitric solution should be used to prepare 250 mL o 2.0M HNO3 ? The concentrated acid is 70% HNO3.
45.0 g conc. HNO3
90.0 g conc. HNO3
70.0 g conc. HNO3
70.0 g conc. HNO3
A.
45.0 g conc. HNO3
Given, molarity of solution = 2
Volume of solution = 250 mL = 250/1000 = 1/4 L
Molar mass of
HNO3 = 1+14+3 x 16 = 63 g mol-1
therefore, Molarity
= 
