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sergejj [24]
3 years ago
10

CaC2 + 2H2O ⟶ C2H2 + Ca(OH)2 How many moles of water are needed to produce 56.8g C2H2?

Chemistry
1 answer:
pshichka [43]3 years ago
6 0

Amount of moles of water is 4.36 mol

Explanation: M(C2H2) = 2·12.01 + 2·1.008 = 26.036 g/mol

Amount of substance is n= m/M= 56.8 g / 26.036 g/mol= 2.18159 mol

Water is needed 2·2.18 mol = 4.36 mol

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what is the correct conversion factor by to which to multiply to convert moles of hyrdogen peroxide (H2O2) to moles of oxygen (O
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Two chemical reactions that you should be familiar with are photosynthesis and respiration. In photosynthesis, the energy of the
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Photosynthesis is endothermic while respiration is exothermic reaction.

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3 years ago
A chemist working for Udensi industries wants to create a new ink for tattoos and cosmetics. Determine the theoretical yield of
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Answer:

35.36 g

Explanation:

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

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Next, we shall determine the mass of Fe that reacted and the mass of FeS produced from the balanced equation. This can be obtained as follow:

Molar mass of Fe = 56 g/mol

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Molar mass of FeS = 56 + 32 = 88 g/mol

Mass of FeS from the balanced equation = 8 × 88 = 704 g

SUMMARY:

From the balanced equation above,

448 g of Fe reacted to produce 704 g of FeS.

Finally, we shall determine the theoretical yield of FeS as follow:

From the balanced equation above,

448 g of Fe reacted to produce 704 g of FeS.

Therefore, 22.5 g of Fe will react to produce = (22.5 × 704)/448 = 35.36 g of FeS.

Thus, the theoretical yield of FeS is 35.36 g

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