Calculate the concentration of buffer components in a 207 ml of a buffer solution that is...
Calculate the concentration of buffer components in a 207 ml of a buffer solution that is .490 m NH4CL and .490 m NH3 after the addition of 1.4 ml of 6.0 m HNO3
NH3 = M NH4+=M
Homework Answers
![Initial moles of NH3 = 207/1000 x 0.490 = 0.10143 mol initial moles of NH4+ = 207/1000 x 0.490 = 0.10143 mol Moles of HNO3 added - 1.4/1000 x 6. 00. 0084 mol NH3 + HNO3 NH4+ + NO3- Final moles of NH3 0.10143 - 0. 0084 0. 09303 mol Final moles of NH4 + = 0.10143 + 0.0084 = 0.10983 mol Final volume = 207 + 1.4 = 208.4 mL = 0.2084 L [NH3]final moles of NH3/final volume 0.09303/0.2084 = 0.446 M [NH4+]final moles of NH4+/final volume 0.10983/0. 2084 = 0.527 M](http://img.homeworklib.com/questions/2d85f340-c4b8-11eb-bc30-09acb6dcbafb.png?x-oss-process=image/resize,w_560)
Add Answer to:
Calculate the concentration of buffer components in a 207 ml of
a buffer solution that is...
Calculate the concentration of buffer components present in 254.00 mL of a buffer solution that contains...
Calculate the concentration of buffer components present in 254.00 mL of a buffer solution that contains 0.370 M NH4Cl and 0.370 M NH3 immediately after the addition of 1.20 mL of 6.0 M HNO3. [NH3] = ____ M [NH4+] = ____M
Calculate the concentration of buffer components present in 177.00 mL of a buffer solution that contains 0.350...
Calculate the concentration of buffer components present in 177.00 mL of a buffer solution that contains 0.350 M NH4Cl and 0.350 M NH3 immediately after the addition of 1.30 mL of 6.00 M HNO3. Part 1: [NH3]= Part 2: [NH4+]
Calculate the concentration of buffer components present in 165.00 mL of a buffer solution that contains 0.38...
Calculate the concentration of buffer components present in 165.00 mL of a buffer solution that contains 0.380 M NH4Cl and 0.380 M NH3 immediately after the addition of 3.00 mL of 6.00 M HNO3 (explain all steps)
Calculate the pH at 25°C of 220.0 mL of a buffer solution that is 0.350 M...
Calculate the pH at 25°C of 220.0 mL of a buffer solution that is 0.350 M NH4Cl and 0.350 M NH3 before and after the addition of 2.40 mL of 6.0 M HNO3. (The pKa for NH4+ = 9.75)
Calculate the pH at 25°C of 189.0 mL of a buffer solution that is 0.420 M...
Calculate the pH at 25°C of 189.0 mL of a buffer solution that is 0.420 M NH4Cl and 0.420 M NH3 before and after the addition of 2.80 mL of 6.0 M HNO3. (The pKa for NH4+ = 9.75) pH before= pH after=
Calculate the pH at 25°C of 246.0 mL of a buffer solution that is 0.450 M...
Calculate the pH at 25°C of 246.0 mL of a buffer solution that is 0.450 M NH4Cl and 0.450 M NH3 before and after the addition of 1.90 mL of 6.0 M HNO3. (The pKa for NH4+ = 9.75) Part 1: pH before= Part 2: pH after=
Calculate the pH of 100.0 mL of a buffer that is 0.0600 M NH4Cl and 0.185...
Calculate the pH of 100.0 mL of a buffer that is 0.0600 M NH4Cl and 0.185 M NH3 before and after the addition of 1.00 mL of 5.65 M HNO3.
A buffer solution is prepared by placing a 25.00 mL aliquot of 0.165 M NH3 and...
A buffer solution is prepared by placing a 25.00 mL aliquot of 0.165 M NH3 and a 25.00 mL aliquot of 0.150 M NH4Cl into a 100.00 mL volumetric flask and diluting to the mark. Using activities, calculate the pH of the buffer solution. Use the Davies equation to determine activity coefficients. (pKa of NH4+ = 9.245)
6. (a) Calculate the pH of the 0.39 M NH3/ 0.73 M NH4Cl buffer system. pH...
6. (a) Calculate the pH of the 0.39 M NH3/ 0.73 M NH4Cl buffer system. pH = (b) What is the pH after the addition of 20.0 mL of 0.075 M NaOH to 80.0 mL of the buffer solution? pH =
a) Calculate the pH of a buffer that is 0.20 M NH3 and 0.20 M NH4Cl...
a) Calculate the pH of a buffer that is 0.20 M NH3 and 0.20 M NH4Cl Correct? b) Calculate the pH after addition of 10 mL 0.10 M HCl to 65 mL of the buffer? c) Calculate the pH after addition of 5 mL of 1.0 M LiOH to 200 mL of the buffer?
Most questions answered within 3 hours.
-
The following table gives information on the amount of sugar (in
grams) and the calorie count...
asked 13 minutes ago -
A car travels at an average speed of 56 mph for 15 hours. What
was the...
asked 32 minutes ago -
Exercise on Mirror, Mirror on the Wall/lnitial Self
Evaluation
Write an Initial Self Evaluation paper that...
asked 1 hour ago -
Implementation of policy recommendations is often a
problem. What do you see as the major barriers...
asked 2 hours ago -
23- The consideration needed to support a contract
must:
a. Flow to the promise AND have...
asked 4 hours ago -
1. What is the main causal factor of Border line personality
disorder? Research has also found...
asked 6 hours ago -
The National Institute of Standards and Technology (NIST)
supplies "standard materials" whose physical properties are
supposed...
asked 6 hours ago -
Alpha Centauri A and B are Sun-like stars, and together they
form the binary star Alpha...
asked 6 hours ago -
What is the pH of a 0.200 M solution of sulfurous acid? Given:
Ka1 = 1.70×10–2,...
asked 6 hours ago -
Sociologists have conducted much interesting research on gender
stereotypes in American society. A curious aspect of...
asked 7 hours ago -
1. Based on your results, calculate how many kilograms of plant
material you would need to...
asked 7 hours ago -
Sample (taken every two minutes)
Angle of Rotation
0
102.9
2
104.2
4
106.2
6
104.8*...
asked 7 hours ago