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1 answer:
Answer: The volume of the solution be if it is diluted to 10% (v/v) is 6.0 L
Explanation:
According to the dilution law,
where,
= concentration of pure acid solution = 15 %
= volume of pure acid solution = 4.0 L
= concentration of diluted acid solution= 10%
= volume of diluted acid solution= ?
Putting in the values we get:
Thus the volume of the solution be if it is diluted to 10% (v/v) is 6.0 L
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The answer is 2.78 moles of Si
7.91 g/ml is the density of the iron piece of 28.5 gms.
Explanation:
The density of a substance is defined as the volume it occupies. It tells the matter present in a substance.
The density is mass per unit volume and is denoted by p.
The formula for density is given by:
density (p) =
Data given is :
mass= 28.5 grams
V1 = 45.5 ml
V2= 49.1 ml
The initial volume of water was 45.5 ml, when iron piece of 28.5 grams was added the final volume was 49.1 ml.
Putting the values in the equation of density
p =
p = 7.91 g/ml
Since iron is a dense material it will occupy less volume