a chemist has a block of iron metal (density is 7.87 g/ml). the block weighs 1.90 g. what is the volume of the iron block in ml?
1 answer:
The block of iron metal with a density of 7.87 g/mL has a volume in mL of 0.2414 mL
The density formula and the procedure we will use is:
ρ = m/v
Where:
- v= volume
- ρ= density
- m= mass
Information about the problem:
- m= 1.90 g
- ρ= 7.87 g /mL
- v= ?
Applying the density formula and clearing the volume (v), we get:
ρ = m/v
v = m / ρ
v = 1.90 g / 7.87 g/ mL
v = 0.2414 mL
<h3>What is density?</h3>It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.
Learn more about density in: brainly.com/question/1354972
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Answer: The final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M
Explanation:
According to the dilution law,
where,
= molarity of stock
solution = 2.5 M
= volume of stock
solution = 5 ml
= molarity of diluted
solution = ?
= volume of diluted
solution = 750 ml
Putting in the values we get:
Therefore the final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M