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3 years ago

What is the energy change associated with 1.5 mole of D being formed?

Chemistry

1 answer:

AleksandrR [38]3 years ago

3 0

Answer:

–36 KJ.

Explanation:

The equation for the reaction is given below:

2B + C —› D + E. ΔH = – 24 KJ

From the equation above,

1 mole of D required – 24 KJ of energy.

Now, we shall determine the energy change associated with 1.5 moles of D.

This can be obtained as illustrated below:

From the equation above,

1 mole of D required – 24 KJ of energy

Therefore,

1.5 moles of D will require = 1.5 × – 24 = –36 KJ.

Therefore, –36 KJ of energy is associated with 1.5 moles of D.

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calculation

Step 1 : find the moles of iron (ii) hydroxide ( Fe(OH)₂

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Step 2: use the mole ratio to calculate the moles of sodium hydroxide (NaOH)

from given equation NaOH : Fe(OH)₂ is 2 :1

therefore the moles of NaOH = 0.041 x 2 = 0.082 moles

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3 years ago

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction,

Vitek1552 [10]

Balance equation for combustion of ethane will be:

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To balance the equation:

1. Balance the number of carbon atom on both side:

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1. balance the number of carbon on both side, as in reactant there are 2 but in product one,

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2. Balance the number of hydrogen on both side as in reactant the number of hydrogen is 3 but in product it is 6 so, multiplythe number of H₂O by 3,

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3. Balance the number of oxygen on both side , as 1 and 2 step increases the number of oxygen and it becomes 7 , so to balance the number of oxygen on both side by mutiplying the number of O₂ by 7/2 in reactant .

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Answer:

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3 years ago

What is the energy change associated with 1.5 mole of D being formed? ￼

What is the energy change associated with 1.5 mole of D being formed?