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Otrada [13]
3 years ago
14

Suppose 4 moles of a react with excess amount of b to produce 382.5 g of c, calculate the percent yield of

Chemistry
1 answer:
lina2011 [118]3 years ago
3 0
<span>To find the percent yield, we first need to write this out as an equation: 3A + 2B --> C + 6D. The moles of C equals 1/3 times the moles of A. Therefore, the moles of C equals 4/3. The theoretical yield equals = moles x molar mass of C. (4/3) x (310.2) = 413.6g The percent yield equals actual yield/theoretical yield x 100%. 382.5g/413.6g x 100% = 92.48%</span>
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C_9H_6O_3+C_4H_6O_3\rightarrow C_9H_8O_4+C_2H_3O_2  

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1 mole of salycylic acid require 1 mole of acetic anhydride

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Thus salycylic acid is the limiting reagent as it limits the formation of product and acetic anhydride is the excess reagent.

As 1 mole of salycylic give = 1 mole of aspirin

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4 0
3 years ago
The chemical bonds of carbohydrates and lipids have high potential energy because:
gladu [14]

Answer:

c. Many of their bonds are C-C and C-H

Explanation:

The majority of bonds in  carbohydrates and lipids( being an organic compound) are C-C and C-H. Like glucose, fructose or galactose ,etc.

These bonds are strong and do require a lot of energy to break. Thus, a lot of energy are required to break carbs and lipids into simpler compounds.Therefore, carbohydrates and lipids have high potential energy.

The correct answer is c.

4 0
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