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ipn [44]
3 years ago
15

3. How many grams of CoCl, in 1/2 Liter would be used to make a 1.0 molar solution?

Chemistry
1 answer:
Paha777 [63]3 years ago
3 0

Answer:

47 grams CoCl needed.

Explanation:

1 mole weight of CoCl in 1 Liter solution => 1.0 molar solution

∴ 1/2 mole weight of CoCl in 1/2 Liter solution => 1.0 molar solution.

1/2 mole weight of CoCl = 1/2(94 g/mole) = 47 grams CoCl needed.  

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In this case, we can solve this problem by applying the Boyle's law which allows us to understand the pressure-volume behavior as a directly proportional relationship:

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P_2=\frac{P_1V_1}{V_2}

Consider that the given initial pressure is also equal to Pa:

P_2=\frac{1.00x10^5Pa*11.00m^3}{1.00m^3}\\ \\P_2=1.1x10^6Pa

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