matrixoz8576 matrixoz8576

25-11-2019
Chemistry

contestada

The reaction N2 + 3 H2 → 2 NH3 is used to produce ammonia. When 450. g of hydrogen was reacted with nitrogen, 1575 g of ammonia were actually produced. What is the percent yield of this reaction?

a. 20,7%
b. 41,5%
c. 62,1%
d. 30,8%
e. More information is needed to solve this problem

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle

26-11-2019

Answer:

61.76%

Explanation:

Percent yield = Actual yield/Theoeetical yield × 100%

We need to calculate the theoretical yield for this reaction.

Firstly, we need to know the number of moles of hydrogen reacted = mass of hydrogen ÷ molar mass = 450 ÷ 2 = 225 moles

From the reaction, we can see that 3 moles of hydrogen yielded 2 moles of ammonia. Hence 225 moles of hydrogen will yield:

(225 × 2) ÷ 3 = 150 moles

The actual mass of ammonia yielded = number of moles × molar mass = 150 × 17 = 2550g

Actual yield = 1575g

Theoretical yield = 2550g

Percentage yield = 1575/2550 × 100% = 61.76%

Answer Link

Otras preguntas

Complete the method, longestWord(), below that takes in an array of Strings and returns the longest String in the array. Note: you may assume the Strings in the

Amad was curious if triangles \triangle ABC△ABCtriangle, A, B, C, and \triangle EDF△EDFtriangle, E, D, F were congruent. He was able to map one figure onto the

The two most basic inventory questions answered by the typical inventory model are: Group of answer choices Order quantity and service level Timing and quantity

Find the height of a square pyramid that has a volume of 84 cubic feet and a base length of 6 feet v=1/3b(2)h

.Which sentence in this excerpt from Eleanor Roosevelt’s speech “What Libraries Mean to the Nation” is an example of the rhetorical strategy of pathos?

1. The author uses the phrase "the autumn towards the close of day" (line 34) as a symbol of A. death B. war C. night D. fall

13. Marco took out an unsubsidized student loan for $20,000, which he will start paying in 4 years, after he graduates. If the interest rate is 4.2%, what is th

A Pythagorean spiral is constructed by drawing right triangles on the hypotenuse of the other right triangles. Start with a right triangle in which each leg is

When someone uses the word dog and you understand the word to mean a mangy, dirty, and disgusting animal, like the one that bit me when I was five years old, wh

Use the quadratic formula to find the exact solutions of x2 − 5x − 2 = 0. x equals negative b plus or minus the square root of b squared minus 4 times a times c