Consider the reaction when aqueous solutions of copper(ii) nitrate and nickel(ii) chloride are combined.
1 answer:
Answer : The reaction that will occur when you combine the aqueous solutions of copper nitrate with nickel chloride is a displacement reaction.
It explained below with the reaction :-
Explanation :
The reaction will give the major product as copper chloride in the form of solid. Rest all the ions will remain in the aqueous form.
It explained below with the reaction :-
Explanation :
The reaction will give the major product as copper chloride in the form of solid. Rest all the ions will remain in the aqueous form.
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Answer : The molecular weight of a substance is 157.3 g/mol
Explanation :
As we are given that 7 % by weight that means 7 grams of solute present in 100 grams of solution.
Mass of solute = 7 g
Mass of solution = 100 g
Mass of solvent = 100 - 7 = 93 g
Formula used :
where,
= change in freezing point
= temperature of pure water =
= temperature of solution =
= freezing point constant of water =
m = molality
Now put all the given values in this formula, we get
Therefore, the molecular weight of a substance is 157.3 g/mol