Answer:
The concentration of KBr is
Explanation:
From the question we are told that
The mass of KBr is
The molar mass of KBr is
Volume of water is
This implies that the volume of the solution is
The number of moles of KBr is
Substituting values
The concentration of KBr is mathematically represented as
Answer: 1 mol of will be produced from this reaction.
Explanation: Reaction follows,
As seen from the balanced chemical equation above, we get
For every 3 moles of Aluminium and 3 moles of , 1 mole of
is formed.
For every 3 moles of Aluminium and 3 moles of , 1 mole of
is formed.
For every 3 moles of Aluminium and 3 moles of , 3 moles of
is formed.
For every 3 moles of Aluminium and 3 moles of , 6 moles of
is formed.
The new concentrations of and
are 0.25M and 19M
Calculation of number of moles of each component,
Molarity of = number of moles/volume in lit = 0. 500 M
Number of moles = molarity of × volume in lit = 0. 500 M× 0.025 L
Number of moles of = 0.0125 mole
Molarity of = number of moles/volume in lit = 0. 38 M
Number of moles = molarity of × volume in lit = 0. 38 M× 0.025 L
Number of moles of = 0.95 mole
Calculation of new concentration at volume 50 ml ( 0.05L)
Molarity of = number of moles/volume in lit = 0.0125 mole/0.05L
Molarity of = 0.25M
Molarity of = number of moles/volume in lit = 0.95mole/0.05L
Molarity of = 19 M
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