(Answered) 1 a buffer solution

Academics

1. A buffer solution contains 0.477 M NH₄Cl and 0.356 M NH₃ (ammonia). Determine the pH change when 0.073mol NaOH is added to 1.00 L of the buffer.

pH after addition - pH before addition = pH change =

2. Determine the pH change when 0.090 mol KOH is added to 1.00 L of a buffer solution that is 0.384 M in HCN and 0.385 M in CN^-.

pH after addition - pH before addition = pH change =

3. How many moles of potassium hydroxide would have to be added to 250 mL of a 0.383 M hypochlorous acidsolution, in order to prepare an buffer with a pH of 7.270?________moles

4. An aqueous solution contains 0.485 M hydrocyanic acid.

How many mL of 0.347 M potassium hydroxide would have to be added to 225 mL of this solution in order to prepare an buffer with a pH of 9.090?

View complete question

Biology, Academics

Category:- Biology
Reference No.:- M92749571
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Biology

1 is a vitamin that sunlight on the skin typically

1. __________ is a vitamin that sunlight on the skin typically triggers within the body. 2. The specific cell type that produces bone tissue is called _____________. 3. The four components of a negative feedback loop ___ ...

Bio toxicology lab assignment -based on the available

Bio Toxicology Lab Assignment - Based on the available information provided to you, lab work and lab reports, answer the following questions. 1) Potentially harmful chemicals are introduced into our environment every day ...

The united states established the first national park in

The United States established the first National Park in the world on March 1, 1872. What does this say about the people of the United States?

If you dont water a plant it will eventually die explain

If you don't water a plant it will eventually die. Explain why the absence of water halts photosynthesis. Also, cells that use aerobic cellular respiration, like humans, do not produce ATP at normal levels without oxygen ...

What types of molecular interactions occur between the

What types of molecular interactions occur between the active site and the substrate?

Question 1go outside during daylight hours to a natural or

Question 1. Go outside during daylight hours to a natural or semi-natural space (e.g., Burton's Pond, an urban park, your backyard). Sit still for 20 minutes and closely observe the plants and animals around you. Describ ...

Experiment 1 staining video1 open the media player by

Experiment 1: Staining Video 1. Open the Media Player by clicking on the film-strip button in the lower left of the lab's window frame, as shown below. The Media Player is a repository of images, videos, saved snapshots, ...

I am having trouble identifying if my buffer solution is a

I am having trouble identifying if my buffer solution is a weak acid and salt....or weak base and salt. Often my questions just give me then names of two molecules and I do not understand how to differentiate. For exampl ...

How do i calculate the number of molecules needed for

How do I calculate the number of molecules needed for lethal dose? I am given the chemical name's LD50 and the "Estimated Lethal Dose (in grams) for 60kg human.

What is the difference between systole and diastole and how

What is the difference between systole and diastole, and how do they relate to Systolic blood pressure and diastolic blood pressure?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Biology Expert