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lapo4ka [179]
4 years ago
14

Now consider the reaction A+2B⇌C for which in the initial mixture Qc=[C][A][B]2=387 Is the reaction at equilibrium? If not, in w

hich direction will it proceed to reach equilibrium? View Available Hint(s) Now consider the reaction for which in the initial mixture Is the reaction at equilibrium? If not, in which direction will it proceed to reach equilibrium? The reaction is already at equilibrium. The reaction will proceed in reverse to form reactants. The reaction will proceed forward to form products.
Chemistry
1 answer:
hram777 [196]4 years ago
8 0

To answer this question Kc of this reaction OR the conc of reactants nd products at equilibria is required.

Explanation:

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How many grams of calcium chloride will be produced when 28.0 g 28.0 g of calcium carbonate is combined with 14.0 g 14.0 g of hy
zvonat [6]

Answer:

21.3 g of CaCl₂ are produced in this reaction

Explanation:

Reaction is this:

CaCO₃ +  2HCl → CaCl₂ + H₂CO₃

Molar mass salt : 100.08 g/m

Molar mass acid: 36.45 g/m

We have 28 g / 100.08 g/m = 0.279 moles of CaCO₃

We have 14 g / 36.45 g/m = 0.384 moles of HCl

Ratio is 1:2, so 0.279 moles of salt will need the double of moles of acid.

0.279 . 2 = 0.558 moles of acid needed. (I have only 0.384 moles, so the acid is the limiting reactant)

0.384 moles of HCl produce the half of moles of CaCl₂ (This ratio is 1:2) --> 0.192 moles

Molar mass of CaCl₂ = 110.98 g/m

Mol . molar mass = mass → 0.192 m . 110.98 g/m = 21.3 g

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