Nitric acid, `HNO_3` is a colourless, corrosive liquid used in the manufacture of Nitrogen fertilizers and explosives. In an experiment to develop new explosives for mining operations, a 28.5 g sample of `HNO_3` was poured into a beaker. How many moles of `HNO_3` are there in this sample of `HNO_3`?

How would you make up 425 mL of 0.150M HNO_3 from 68.0% HNO_3 ? The density of 68.0% HNO_3 is1.41g/mL.

How many molecules are there in a 3.46 g sample of hydrogen chloride, HCl? Note: The number of molecules in a sample is related to moles of compound (1 mol HCl = 6.023 xx 10^(23) HCl molecules). Therefore if you first convert grams HCl to moles, then you can convert moles to number of molecules).

Bottles containing C_(6)H_(5)I and C_(6)H_(5)-CH_(2)I lost their original lables. They were labelled A and B for festing. A and B were separately taken in a test tube and boiled with NaOH solution. The end solution in each tube was made acidic with dilute HNO_(3) and then some AgNO_(3) solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment.

Comprehension # 5 342 g of 20% by mass of Ba(OH)_(2) solution (sp.gr.0.57) is reacted with 200mL of 2M HNO_(3) according to given balanced reaction : Ba(OH)_(2)+2HNO_(3) rarr Ba(NO_(3))_(2) + 2H_(2)O Find the molarity of the ion in resulting solution by which nature of the above solution is identified, is

Cu +4HNO_(3) to Cu (NO_(3))_(2) + 2NO_(2) +2H_(2)O, How much molar HNO_(3) solution is required to react 0.635 gm. Cu with 25ml HNO_(3) ? (Cu = 63.5 gm / mole)