To synthesise 1.0 mole of 2-methylpropan-2-ol from Ethyl ethanoate, ______________ equivalents of CH3MgBr reagent will be required. (Integer value)Correct answer is '2'. Can you explain this answer?

To synthesize 1.0 mole of 2-methylpropan-2-ol from Ethyl ethanoate, 2 equivalents of CH3MgBr reagent will be required.

Explanation:
1. Determining the Balanced Equation:
The reaction between Ethyl ethanoate and CH3MgBr can be represented by the following balanced equation:
CH3COOC2H5 + CH3MgBr → CH3COOCH3 + C2H5OH + MgBr2
This equation shows that 1 mole of Ethyl ethanoate reacts with 1 mole of CH3MgBr to produce 1 mole of 2-methylpropan-2-ol.

2. Calculating the Moles of Ethyl Ethanoate:
Since 1.0 mole of 2-methylpropan-2-ol is desired, we need to determine the number of moles of Ethyl ethanoate required. By examining the balanced equation, we can see that the ratio between Ethyl ethanoate and 2-methylpropan-2-ol is 1:1. Therefore, we need 1.0 mole of Ethyl ethanoate.

3. Determining the Moles of CH3MgBr:
To find the number of moles of CH3MgBr required, we can use the concept of equivalents. An equivalent is the amount of a substance that can react with or replace 1 mole of another substance. In this case, 1 equivalent of CH3MgBr can react with 1 mole of Ethyl ethanoate.

Since we need 1.0 mole of Ethyl ethanoate, we also need 1.0 equivalent of CH3MgBr.

However, the question asks for the number of equivalents of CH3MgBr. An equivalent of CH3MgBr is equal to the number of moles of CH3MgBr divided by the number of moles of Ethyl ethanoate it reacts with. In this case, 1.0 equivalent of CH3MgBr is equal to 1.0 mole of CH3MgBr divided by 1.0 mole of Ethyl ethanoate, which gives us 1.0 equivalent.

Therefore, to synthesize 1.0 mole of 2-methylpropan-2-ol from Ethyl ethanoate, 2 equivalents of CH3MgBr reagent will be required.

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