Describe the preparation of 2 L of 85 mM phosphate buffer, pH 6.5, using 120 mM NaH₂PO4-6H₂O and 120 mM Na₂HPO4-6H₂O. The pka of the weak acid component is 7.21. Show calculations - uneah.. Molar masses of some elements. ELEMENT Na H P MOLAR MASS, g/mol 22.99 1.008 30.97 16.00 35.45

Describe the preparation of 2 L of 85 mM phosphate buffer, pH 6.5, using 120 mM NaH₂PO4-6H₂O and 120 mM Na₂HPO4-6H₂O. The pka of the weak acid component is 7.21. Show calculations - uneah.. Molar masses of some elements. ELEMENT Na H P MOLAR MASS, g/mol 22.99 1.008 30.97 16.00 35.45

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: Administration of digitalis, a drug used to control atrial fibrillation in heart patients, must be…

Q: If the RDA for vitamin C is 60. mg per day, and there are 70. mg of vitamin C per 100. g of oranges,…

A: The relation between oz. and g is as follows:1 oz. = 28.3495 gThus,3 oz. = 85.0485 gThe relation…

Q: Part 7) Looking towards summer, pretend for a moment that you won a scooter. You are so excited to…

Q: Calcium metal is dropped into water. The products are calcium hydroxide and hydrogen gas.

A: The balanced equation, total ionic equation and net ionic equation of the reaction has to be…

Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…

Q: What is value for x in the equation below? e(3.66x) = 101.8(8.90+1.04) %3D Note: Logarithms and…

Q: A 76.0076.00 pound flask of mercury costs $143.50.$143.50. The density of mercury is 13.534…

A: 76.00 pound of mercury costs $143.50 Therefore, 1 pound of mercury costs 143.50 / 76 = $1.89

Q: Using the Q test, decide whether the value 222 should be rejected from the set of results: 193, 222,…

A: Dixon's Q test or Q test, is used for identification and rejection of outliers from the given…

Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…

A: A physical change is the change in which no chemical reaction occurs.

Q: Convert 23lbf ∙ ft/min^2 to its equivalent in kg ∙ cm/s^2

A: Convert the given measurement--

Q: How do I solve Fahrenheit equals 1.8 (C) +32

A: The formulas for converting between degree Celsius and degree Fahrenheit are:°F = (°C * 9/5) + 32°C…

Q: What is difference between filtration and centrifugation

A: Both filtration and centrifugation are separation techniques based upon different principles.…

Q: n=? O PVIRT O TR/PV O PT/RV O PR/VT

Q: A 76.0076.00 pound flask of mercury costs $147.50.$147.50. The density of mercury is 13.534…

A: since you have posted a question with multiple subparts, we are entitiled to answer only firsr 3…

Q: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

A: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

Q: Select 1-2 metals from the periodic table that is present from the environment (soil, air or water)…

A: Metals which are present from the environment (or) from food that is consumed which leads to…

Q: Food safety guidelines recommend that a beef rib roast (bone-in) should cook for 23.0 minutes per…

A: beef rib roast (bone-in) should cook for 23.0 minutes per pound based on a 325 °F oven setting…

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: 21. The recommended daily allowance of thiamine is 1.4 mg per day. A patient is consuming 0.80 mg.…

Q: Percent Error is defined as: % = [measured value – accepted value] / measured value x 100

A: Percent error is used to get an idea about the possible error in the experiment based on the known…

Q: (5.0 × 104) × (3.0 × 106) = a. 1.5 x 10^9 b. 1.5 x 10^10 c. 1.5 x 10^11 d. 1.5 x 10^12

A: The calculation given is, => (5.0 × 104 ) × (3.0 × 106)

Q: The average heart beats 74 times per minute. How many times will the heart beat in 6.4 days?

Q: Which of the statements below are true of the substance represented in the diagram?

A: Among solid, liquid, and gas, the arrangement of atoms are different. The particles in a solid are…

Q: An adult should have no more than 23032303 mg of sodium per day. What is this limit in kilograms…

A: Given: Mass of sodium = 23032303 mg Conversion of mass of sodium from mg to kg: 1 mg = 10-6 kg

Q: O Macmillan Learning One important test for kidney disease involves measuring the levels of…

A: Answer :----

Q: How many nL are there in (3.67x10^3) cL

Q: A B Choose the best description of the kinds of changes that explain the differences between images…

A: Answer:When a system contains only one type of phase that such system is called as homogeneous…

Q: -shaped tube containing an amount of mercury. The left arm of the tube has cross-sectional area A1…

A: Solution: Part(a) Given that Cross section of left arm A₁=10.9 cm² Cross section of right arm…

Q: CI OH

A: 2-chloropropan-1-ol

Q: What is substance examples?

A: To define: A substance.

Q: 385000 Jam STARTING AMOUNT 385000 km x 1000 m 1 km X X 11080 s 3470 min X 1000 1 1 min 60 s = min…

Q: 1 10J 1 MJ 1 m J = = 11 = 10 -1, 10 3 10 0 J J 100 J w by filling in the missing prefix μ X

A: Energy is represented in terms of joule(J). Different representation of unit of energy: Decijoule…

Q: 1. What is the approximate population for: a. The world: b. China: Population Math Practice c.…

A: 1) The approximate population of a) World: 8 billion b) China: 1.426 billion c) India: 1.417…

Q: A B D B Bu с NaOH D E

A: Strong base react with alpha hydrogen containing carbonyl compound to give an enolate ion is as…

Q: a = -bcd In order to solve the equation above for d, you must multiply both sides of the equation by…

A: To solve these equations we need to check both the sides.

Q: Identify the following as a physical or chemical change: (a) water boils at 212 °F (b) applying an…

A: Physical changes: These changes involve a change in the physical properties of a substance…

Q: Without using a calculator, decide which would give a significantly smaller value than 8.83 x 10-2,…

Q: What is 302 x 4903

A: Calculate 302 × 4903

Q: Calculate the electrostatic force of repulsion for two protons separated by 93.0 pm. The charge of a…

A: given that , The charge of proton is 1.6x10^-19 C Distance between two proton is 93.0 pm = 93x10^-12…

Q: a) An acetaminophen suspension for infants contains 80 mg/ 0.80 mL suspension. The recommended…

A: Given, a. The concentration of an acetaminophen suspension = 80 mg/ 0.80 mL The dosage of drug based…

Question

Describe the preparation of 2 L of 85 mM phosphate buffer, pH 6.5, using 120 mM NaH₂PO4-6H₂O and 120 mM
Na₂HPO4-6H₂O. The pka of the weak acid component is 7.21. Show calculations
-
Samline ah-
Molar masses of some elements.
ELEMENT
Na
H
P
O
MOLAR MASS, g/mol
22.99
1.008
30.97
16.00
35.45

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 1 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

(7.211*10^5)*(5.3413*10^4)/4.09*10^-7
Every year Every second (1 year 365 days).
Not sure what I am doing wrong here...
Q: (4.80 x 10^{-107}) X (5.00 x 10^{-11})= a 2.40 x 10^{-96} b 24.0 x 10^{-96} c 2.40 x 10^{-118} d 2.40 x 10^{-117}
Colonel James Rhodes is prescribed to take 3 pills per day (pill/day) of a specific medication. If each pill contains 34 mg of the active dose, how many grams of the drug will he receive each week (g/week)? Show all steps using dimensional analysis
Unit conversions
A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?
6. My car gas tank holds 14.2 gallons of gas. 10.9 kg of carbon dioxide, CO₂, is produced per 1.00 gallon of gas burned. How many pounds of CO₂ is produced from a full tank of gas? (1 kg = 2.205 lb.)
Br DH NaCN
Make the statements negative. 1 It's a very good film. 2 She's working very hard at the moment. 3 He needs a computer for his job. 4 The house is decorated every year. 5 We bought presents for everyone. 6 They've sold their house. 7 She was wearing new clothes. 8 They've been waiting for a long time. 9 I've got a garden. 10 We had an exam last term.
Perform a hydride shift to produce a more stable carbocation Show the delocalization of the positive charge of the carbocation Form a conjugated alkene
The world population is estimated to be 7.4 x 109. Nauru is the smallest island nation and comprises 1.5 x 10-4% of the world population. If the percentage of left-handed people is approximately 12%, estimate the number of left-handers on the island of Nauru.