How are the conditions at which phases are in equilibrium represented on a phase diagram?
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Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.
<h3>How to calculate the mass of solution ? </h3>Given percentage of Pb present in the sample solution is 0.0011%
That means 0.0011 grams of Pb present in the 100g of solution.
So,
=
= 13.6 × 10³ g water
<h3>What is Density ? </h3>The mass per unit volume is called density. Density is represented as D or ρ.
It is expressed as:
where,
ρ = Density
m = mass of the object
V = Volume of object
Now put the value in above expression we get
V = 13.6 × 10³ ml
Thus from the above conclusion we can say that Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.
Learn more about the Density here: brainly.com/question/1354972
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