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Clay is used in pottery for its ability to be manipulated by the bare hands of humans, and it dries very quickly. Since you dont need a lot of equipment, it was a high paying job back in the old times. An advantage of clay that it can keep the water cool for a long time as long as you cover the container.
Another advantage is that clay doesnt react with the liquids or food inside when heat is applied ( Unlike plastic)
Answer:
The answer is 0.0698 M
Explanation:
The concentration was prepared by a serial dilution method.
The formula for the preparation I M1V1 = M2V2
M1= the concentration of the stock solution = 0.171 M
V1= volume of the stock solution taken = 200 mL
M2 = the concentration produced
V2 = the volume of the solution produced = 940 mL
Substitute these values in the formula
0.171 × 200 = 490 × M2
34.2 = 490 × M2
Make M2 the subject of the formula
M2 = 34.2/490
M2 = 0.069795
M2 = 0.0698 M ( 3 s.f)
The concentration of the Chemist's working solution to 3 significant figures is 0.0698M
Answer:
Explanation:
Hello,
In this case, by knowing that we have 1 billion (
1,000,000,000) of atoms of sulfur, via the Avogadro's number we can firstly compute the moles:
Then, by using the atomic mass of sulfur (32 g/mol), we can finally compute the mass:
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