How much percentage of alcohol in ethyl alcohol which we are using in lab?
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mysteries of ethanol and water from the azeotrope at about 89 mole-% ethanol and 11 mole-% water a mixture of 95.6 percent ethanol by mass (aur about 97% alcohol by volume) at normal pressure, which boils at 351K(78°C)
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95.6%
explanation
Direct distillation can yield at best the constant-boiling-point mixture containing 95.6 percent by weight of ethanol. Dehydration of the constant-boiling-point mixture yields anhydrous, or absolute, alcohol.
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