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shusha [124]
2 years ago
9

Give the name of a metal chloride which is insoluble in cold water.

Chemistry
2 answers:
pashok25 [27]2 years ago
7 0

The answer is lead chloride. hope this helps :)

Natalka [10]2 years ago
7 0

Answer:

B. Lead Chloride

Explanation:

#CareOnLearning

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One way of obtaining pure sodium carbonate is through the decomposition of the mineral trona, Na3(CO3)(HCO3)·2H2O. 2Na3(CO3)(HCO
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Percentage yield = (actual yield / theoretical yield) x 100%

The balanced equation for the decomposition is,
 2Na₃(CO₃)(HCO₃)·2H₂O(s) → 3Na₂CO₃(s) + CO₂(g) + 5H₂<span>O(g)

The stoichiometric ratio between </span>Na₃(CO₃)(HCO₃)·2H₂O(s)  and Na₂CO₃(s) is 2 : 3

The decomposed mass of Na₃(CO₃)(HCO₃)·2H₂O(s) = 1000 kg
                                                                                     = 1000 x 10³ g

Molar mass of Na₃(CO₃)(HCO₃)·2H₂O(s) = 226 g mol⁻¹
moles of Na₃(CO₃)(HCO₃)·2H₂O(s) = mass / molar mass
                                                         = 1000 x 10³ g / 226 g mol⁻¹
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Hence, moles of Na₂CO₃ formed = 4424.78 mol x \frac{3}{2}
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Molar mass of Na₂CO₃ = 106 g mol⁻¹

Hence, mass of Na₂CO₃ = 6637.17 mol x 106 g mol⁻¹
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Hence, the theoretical yield of Na₂CO₃ =  703.540 kg
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Percentage yield = (650 kg / 703.540 kg) x 100%
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What is the main reason scientists perform experiments
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Answer:

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