Asolution is prepared by mixed by mixing 0.10l of 0.14m sodium chloride with 0.21l of a 0.19m mgcl2 solution. what volume of 0.21m silver nitrate is required to precipitate all the cl- ion in the solution agcl?

Explanation:

If is the molarity and is the molarity of a given solution,

number of moles of the solute in the solution is .

Number of moles of ions in the initial solution is the sum of number of moles of ions  in and

Number of moles of ions in is

number of moles of ions  in is

Number of moles of ions in the initial solution is

So, of ions are required to displace of ions.

So,number of moles of required is

So,

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.