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2 years ago

Calcium carbonate can be decomposed by heating: CaCO3 - CaO + CO2

Chemistry

1 answer:

Galina-37 [17]2 years ago

3 0

Answer: 13.888g

Explanation:

CaCO3 —> CaO + CO2

From the equation above, 1mole of CaCO3 produces 1mole of CaO. Since the answer is to be expressed in grams, let us covert this mole to grams. This is illustrated below:

MM of CaCO3 = 40 +12 + (16x3) = 40 + 12 + 48 = 100g/mol

MM of CaO = 40 + 16 = 56g/mol

From the equation,

100g of CaCO3 produced 56g CaO

Therefore, 24.8g of CaCO3 will produce Xg of CaO i.e

Xg of CaO = (24.8 x 56) / 100 = 13.888g

Therefore, the theoretical yield of CaO is 13.888g

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Answer:

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Explanation:

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3 years ago

The reaction can be described using the equation: 2C2H25O24CO22H2O. How much C2H2is needed to react with 68.1 g of O2to produce

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Answer:

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Explanation:

We'll begin by writing a balanced equation for the reaction. This is illustrated below:

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Molar Mass of C2H2 = (12x2) + (2x1)

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Mass of C2H2 that reacted from the balanced equation = 2 x 26 = 52g

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From the balanced equation above,

52g of C2H2 reacted with 160g of O2.

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