4. 500 mL of a buffer solution system contains 0.1 mol/L potassium lactate and 0.05 mol/L lactic acid. MWK lactate 128.17 g/mol MWlactic acid = 90.08 g/mol MWHNO3 = 63.01 g/mol pKa = 3.86 a. What is the pH of this solution? b. If a technician adds ten drops from a calibrated dropper (40 drops/mL) of nitric acid 70 % w/w solution (sp gr = 1.413), what is the final pH of this solution?

4. 500 mL of a buffer solution system contains 0.1 mol/L potassium lactate and 0.05 mol/L lactic acid. MWK lactate 128.17 g/mol MWlactic acid = 90.08 g/mol MWHNO3 = 63.01 g/mol pKa = 3.86 a. What is the pH of this solution? b. If a technician adds ten drops from a calibrated dropper (40 drops/mL) of nitric acid 70 % w/w solution (sp gr = 1.413), what is the final pH of this solution?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Can you please help calculate the reduced mass, μ, for a C-H bond. Answer to 2 decimal places.

Q: Q2. Two widely used pain relievers are aspirin and acetaminophen (Tylenol). "Liquid" Children's…

A: Liquid children's aspirin is no longer available due to safety concerns. Aspirin, including…

Q: Convert -4680oF into K.

Q: 146C --> 0-1e + _______________?

Q: professor Scimemi has accepted you as a Master’s student and you are involved in a project that…

A: You need to make 2.5 mM KCl. The formula for weighing is as follows: Amount of KCl (g) = [Molarity…

Q: Hg(OAc)2, H,O -CH3 Hg(OAc), H;0 NaBH, BH3 HO2 CH3 THE OH

A: Hello. Since the question contains multiple subparts, the first three subparts are solved. In case…

Q: Al + O2> Al203

A: The given unbalanced chemical reaction is, _______Al + ______O2 ------> ______…

Q: It may help to keep the following equation in mind as you work Kw = [H3O+][OH ] = [1 x 10-7 M[1 ×…

A: Solutions are classified in three types (acidic/basic/neutral) based on their pH value which in turn…

Q: The following image depicts a centrifuge rotor with six sample holders. The blue sample holders…

A: To use a centrifuge rotor, we need to balance it. To balance it - All sample tubes should be evenly…

Q: 1-38. To entertain children between the ages of 2 and 90, I enjoy popping corks from bottles…

A: (a) The formula mass of acetic acid and sodium bicarbonate is

Q: 4. You are placing the following quantities of BSA (1 µg/µL) in wells A1-A8 for a total volume of…

A: A table of data with mass and volume of BSA. Total volume and corresponding Absorbance values.

Q: Test Tube #2: Unknown sample (KCLO3 + KCL) 1. Determine the weight of unknown heated. 2. Determine…

A: In the presence of a MnO2 catalyst, KClO3 decomposes to form potassium chloride and oxygen gas on…

Q: if a volumetric pipet delivers 24.844g of deionized water at 31.00 degrees C, what is the calibrated…

A: Mass of deiomized water delivered by volumetric pipet=24.844 g We have to calculate the calibrated…

Q: 2NOBr(g) → 2NO(g) + Br2(g) Use the data below to make the following determinations: (a) the average…

A: The rate of reaction is the speed at which chemical reaction takes place. For most reactions, rate…

Q: RECTIONS: Fill in the anks (1, 2,3, & ??) to mplete the organizer. word bank is provided your…

Q: Fill in the missing information. OH CH₂ H+ НО Br ОН m-CPBA ОН Br H2 Pd/C 1. NaBH4 2. H,0+

Q: Calculate consumption when Y = 247. Round your answer to a whole number. 1200 1100 1000 Consumption,…

A: The question is based on the concept of consumption. We need to calculate value of consumption based…

Q: Chemistry 1.A fabric specimen weighs 2.341g when completely dried and 2.495g under standard…

A: Given that, for a fabric specimen The weight of the completely dry sample is D = 2.341 g. The…

Q: 45. One of the most desirable of the old British sports cars was the beautiful Triumph Vitesse…

A: To calculate the volume of carbon-dioxide we first have to calculate the amount of fuel used in the…

Q: Question 13 Why is commercially available EDTA in the form of disodium salt, Na2H2Y.2H2O? O to…

A: EDTA is ethylene diamine tetraacetate ligand that bind to metal ions and it is a hexadendate ligand.

Q: Why is the standardization carried out above room temperature?

A: Introduction Standardization of solutions is the process of determining the exact concentration of a…

Q: please help me. double and triple check your answers, previous tutors got it wrong. this is a…

A: The mole fraction of B5H11 is calculated as,

Q: None

A: Step 1:Scientific notation : The general representation of scientific notation is -a×10bWhere, a is…

Q: None

A: To solve for the new pressure P2 when the temperature changes from T1 to T2, you can use the ideal…

Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

4a&b

4. 500 mL of a buffer solution system contains 0.1 mol/L potassium lactate and 0.05 mol/L lactic acid.
MWK lactate 128.17 g/mol
MW lactic acid = 90.08 g/mol MWHNO3 = 63.01 g/mol pKa = 3.86
a. What is the pH of this solution?
b.
If a technician adds ten drops from a calibrated dropper (40 drops/mL) of nitric acid 70 % w/w
solution (sp gr = 1.413), what is the final pH of this solution?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

(Application) Bananas Foster is an example of a dessert that is flambéed. A Bananas Foster label states the accepted number of Calories to be only 300 calories, but a calorimetry experiment measured there to be 318 calories. Calculate the percent error. Percent Error_ [Experimental Value – Theoretical Value| Formula |Theoretical Value| x 100 4% 5% 6% O 7% 1 2 Next
_H20(g) S03(g) +.
Tonya sold 160 sandwiches for $2.00 each. Each sandwich consisted of 4 oz of ham, two slices of bread, and mustard. She paid $3.00/lb for the ham, $0.60/loaf for the bread and used 8 jars of mustard at $0.50 each. How much profit did she make? Note: I attempted the problem, but it felt like I was going about it wrong. It’s for a chem class, but is there a less conveluded algebraic way to solve it? Or other method?
Analyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) A dispersing agent such as Na-hexametaphosphate is needed prior to soil textural analysis. (B) particles greater than 2.0 mm is included in the analysis of soil texture.
(a) True or false Chemical warfare is a natural disaster. (b) True or false An organizations vision will speak to how the mission will be implemented. (c) true or false The Mission of an organization will contain the moving forward direction the organizations policy interests will take (d). True or false The situational analysis of a health care policy development stage will identify each stakeholder and informs the policy decider on possible paths for the policy.
Methonor CCHqO, density = 361kg/m), prepponol CC3H8O, density =351KG) ethond (C2H60, donsety= 35,9 kglm) Butonol (CaH,oO density: 380 cglm?) m3 3.374ML f ethonol aue in a stoms of Hydnogen in this amerint of alcóhol sompe. Determine the numler of
Need help with homework
10 11 12 13 14 15 16 17 18 19 20 Calculate the solubility of BaCro, in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. Continue MacBook Air
You have just started working in an Urgent Care Clinic as a nurse. Mom brings in her 3 year old little boy, Brandon. Mom states that Brandon has been having fever up to 104F and he isn't eating or drinking anything because he feels very sick to his stomach, not to mention crabby! He's also been pulling a lot at his right ear and sounds congested. At the last well visit with the Pediatrician (about 2 weeks ago), Mom states that Brandon weighed 32 pounds. On exam today, his weight is 12.5 kg. Additionally his eyes are darkened and sunken, his mouth is dry with some white crusting around the lips. His temperature is 39C, other vitals signs are normal. Though he looks ill he appears to be medically stable. The doctor rushes in, quickly exams Brandon, diagnoses him with otitis media and then barks off orders to you that you then need to convey accurately to Mom. The orders include: push fluids, ibuprofen 10mg/kg every 6 hours if temp > 38C, and begin taking a 10-day course of…
5. This question has two parts a. and b. a. Assuming 100% yield, how much hexynyl lithium (in mmol) is produced from the reaction of LiHMDS with 1- hexyne? (mmol) b. Insert an image (.jpeg, png, .heic) showing all of your calculations for the moles of hexynyl lithium above. Note: Click on the image icon in the box below to upload/attach an image file. W
Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 8 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000054 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL Do not include units with your answer.
correct answer please Q6