A 10.151 g sample of window cleaner containing ammonia was diluted with 39.466 mL of water. Then 4.373 g of solution was titrated with 14.22 mL of 0.1063 M HCl to reach a bromocresol green end point. Find the weight percent of NH3 (FM 17.031) in the cleaner.

1 answer
Question:

A 10.151 g sample of window cleaner containing ammonia was diluted with 39.466 mL of water. Then 4.373 g of solution was titrated with 14.22 mL of 0.1063 M HCl to reach a bromocresol green end point. Find the weight percent of NH3 (FM 17.031) in the cleaner.

Answers

Answer:2.878 (w/w)%Explanation:The reaction of NH3 with HCl is:NH3 + HCl → NH4ClThat means 1 mole of ammonia reacts per mole of HCl. The moles of HCl that reacts = Moles of ammonia are:14.22mL = 0.01422L * (0.1063mol HCl / L) = 0.001512 moles HCl = Moles ammoniaIn mass:0.001512 moles NH3 * (17.031g / mol) = 0.02574g of NH3 in the solution.The concentration in weight percent of the diluted solution is:0.02574g of NH3 / 4.373g * 100 = 0.5887 (w/w)%This is the concentration of the diluted solution that was diluted from 10.151g to 10.151g + 39.466g = 49.617g -Assuming density of water = 1g/mL-The solution was diluted:49.617g / 10.151g = 4.888 times.That means the concentration of NH3 in the original cleaner is:0.5887 (w/w)% * 4.888 = 2.878 (w/w)%

Similar Solved Questions

1 answer

How did the rats that carried plague-infected fleas probably travel along trade routes?

How did the rats that carried plague-infected fleas probably travel along trade routes?...
1 answer

What item did they get from Egypt and ship to Rome

What item did they get from Egypt and ship to Rome...
1 answer

Calculate the force required to produce a moment of 27Nm on a shaft, when the effective distance from the center of the shaft to the point of application of the forces is 180mm​

Calculate the force required to produce a moment of 27Nm on a shaft, when the effective distance from the center of the shaft to the point of application of the forces is 180mm​...
1 answer

A cube with sides 4m in length has a volume of 64 m^3. If each side of the cube is doubled in length what is the ratio of the new volume to the old volume ? A. 2:1 B.8:1 C. 5:1

A cube with sides 4m in length has a volume of 64 m^3. If each side of the cube is doubled in length what is the ratio of the new volume to the old volume ? A. 2:1 B.8:1 C. 5:1...
1 answer

What is the difference between a LAN and WAN? how do these two networks interact?​

What is the difference between a LAN and WAN? how do these two networks interact?​...
2 answers

Which set of measurements could be the interior angle measures of a triangle?

Which set of measurements could be the interior angle measures of a triangle?...
1 answer

Which statements best explain how students would know if a chemical reaction occurred during the steel wool demonstration? Select TWO correct answers from the choices below.

Which statements best explain how students would know if a chemical reaction occurred during the steel wool demonstration? Select TWO correct answers from the choices below....
2 answers

Blackpink In your Area

Blackpink In your Area...
1 answer

A projectile is fired into the air from the top of a 200-m cliff above a valley as shown below. Its initial velocity is 60 m/s at 60° above the horizontal. Calculate (a) the maximum height, (b) the time required to reach its highest point, (c) the total time of flight, (d) the components of its velocity just before striking the ground, and (e) the horizontal distance traveled from the base of the cliff.​

A projectile is fired into the air from the top of a 200-m cliff above a valley as shown below. Its initial velocity is 60 m/s at 60° above the horizontal. Calculate (a) the maximum height, (b) the time required to reach its highest point, (c) the total time of flight, (d) the components of its vel...
1 answer

The school store has 2400 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the the number of pencils in stock is 600.

The school store has 2400 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the the number of pencils in stock is 600....
1 answer

If it is 1:10 in virginia right now and its 6:10 in england how many hours are they apart

if it is 1:10 in virginia right now and its 6:10 in england how many hours are they apart...
2 answers

3 1/2 ounces of cough syrup is used from a 9 1/4 ounce bottle how much is left

3 1/2 ounces of cough syrup is used from a 9 1/4 ounce bottle how much is left...
2 answers

Methane is a gas that easily catches fire. This statement is describing a _____ physical property chemical property physical change state of matter

Methane is a gas that easily catches fire. This statement is describing a _____ physical property chemical property physical change state of matter...
2 answers

Read the sentence and choose the best option. Julio necesita bastante ayuda para prepararse para la celebración. Select the adverb in the sentence. (1 point) a Bastante b Celebración c Necesita d Preparse

Read the sentence and choose the best option. Julio necesita bastante ayuda para prepararse para la celebración. Select the adverb in the sentence. (1 point) a Bastante b Celebración c Necesita d Preparse...
1 answer

Help me please and I need this asap please

Help me please and I need this asap please...
1 answer

Someone please help me with this please please pleasee!!!

Someone please help me with this please please pleasee!!!...
1 answer

Which best illustrates the importance of DNA technology?

Which best illustrates the importance of DNA technology?...
2 answers

Given h(x) = –3x – 5, solve for x when h(x) = –2.

Given h(x) = –3x – 5, solve for x when h(x) = –2....
2 answers

Mi primo y yo conocemos a Los jugadores del real Madrid.ellos

Mi primo y yo conocemos a Los jugadores del real Madrid.ellos...
1 answer

A rectangular swimming pool is 50 feet long and 25 feet wide. What is the area of the bottom of the swimming pool?

A rectangular swimming pool is 50 feet long and 25 feet wide. What is the area of the bottom of the swimming pool?...

-- 0.010054--