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03/18/25

pH and pKa Henderson-Hasselbalch Approach

Calculate the pH of a buffer solution that is 0.050 M in benzoic acid (HC7H5O2) and0.150 M in sodium benzoate (NaC7H5O2). For benzoic acid, Ka = 6.5 × 10–5.Please show with ICE table too.

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Series 63

03/18/25

Best Strategies for FINRA Series 63 Exam Preparation

I am currently preparing for the FINRA Series 63 exam and wanted to start a discussion on the best strategies for exam success. Since this exam focuses on state securities regulations and ethical... more

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Math

03/18/25

Tim spent half of his allowance

Tim spent half of his allowance going to the movies. He washed the family car and earned 8 dollars. What is his weekly allowance if he ended with 11 dollars?

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Reading

03/18/25

How can you advocate for your own learning?

Discuss how you want to learn

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Psat

03/18/25

how do I schedule a lesson with a selected tutor

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English Writing Proofreading

03/17/25

Are you seeking online freelancing research & academic writting services?

Well,look no further,I am here to assist You in whatever way best that will leave You satisfied.I am a highly skilled and detail-oriented freelance academic writer and researcher with over five... more

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Organic Chemistry

03/17/25

How do you do an oxidation reaction to get the starting material of this product for question 4b

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Study Skills

03/17/25

Is reading the PMBOK Guide necessary before sitting for the PMP exam?

Remember the name of the book is PMBOK GUIDE

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Math Trigonometry

03/17/25

explain why irrational cosine values added and multiplied equal a rational number

why does[cos(2π/7)+cos(π/7)]*[cos(2π/7)-1]*[cos(12π/7)+cos(π/7)]=-(7/8)hint;cos(7x)=64cos7x-112cos5x+56cos3x-7cosx

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Science Biology Chemistry

03/17/25

Are you looking for a MCAT tutor?

Hi, I'm Hong! I graduated from Stanford with Bachelor and Masters in Biology, and I'm currently pursuing an MD/MBA from Virginia Tech Carilion SOM.One of my greatest strengths is tutoring and... more

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Public Speaking

03/17/25

Some of your managers are in competition with one another and it’s causing some internal communication issues how would you address this concern and why do you believe these ideas will be effective?

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English Writing

03/17/25

Are you a college freshman needing help with your expository essay?

I have taught freshman writing composition to thousands of students and can help you through all of the stages of your essays: outlining, drafting, developing a thesis statement, providing... more

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Writing

03/17/25

Are you currently looking for a writing tutor?

.

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Writing

03/17/25

Are you currently looking for a writing tutor?

I have advanced writing experience and am currently looking for students seeking writing lessons. I have immersed myself in areas such as sentence structure, rhetoric, analysis, and also creative... more

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Math Science English

03/17/25

does a background check boost your chances to get jobs?

I am failing to find any jobs. Would a background check help?

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Autocad

03/17/25

I need help with CAD

I am a high school Business Tech teacher in desperate need of help on a CAD assignment I cannot figure out how to do. Any help would be greatly appreciated. I use Autodesk Inventor for course... more

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Chemistry

03/17/25

A 0.5224-g sample of an unknown monoprotic acid was titrated with 0.0998 M NaOH.

A 0.5224-g sample of an unknown monoprotic acid was titrated with 0.0998 M NaOH. The equivalence point of the titration occurred at 23.82 mL. Determine the molar mass of the unknown acid.Please... more

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Chemistry

03/17/25

Calculate the solubility of silver chloride in a solution that is 0.100 M in NH3. Using Ksp

Calculate the solubility of silver chloride in a solution that is 0.100 M in NH3. (Use standard Ksp AgCl(s) = 1.77 x 10-10 andKf Ag(NH3)2+ = 1.7 x 107 )

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Chemistry

03/17/25

Calculate the molar solubility of barium fluoride in each liquid or solution.

Calculate the molar solubility of barium fluoride in each liquid or solution. BaF2 Ksp = 2.45 x 10-5 Ksp(BaF2)=2.45×10−5 a) Pure water b) 0.15 M NaF

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Chemistry

03/17/25

What is the pH of 0.214 M KCN?

What is the pH of 0.214 M KCN?When search the internet, often the equation is changed to HCN, what happens to the Potassium?How to solve?Thank you!

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Trigonometry

03/16/25

Vectors|Please help!

"Vector u has a magnitude of 15 and a direction of 0°. Vector v has a magnitude of 18 and a direction of 70°. Find the magnitude and direction of the resultant to the nearest whole number."For this... more

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Science Chemistry Organic Chemistry

03/16/25

General Chemistry 2

The pH of an aqueous solution of 0.248 M sodiumcyanide, NaCN, is (answer). (Assume that Ka (HCN) = 4.00 x 10^-10).This solution is _____ (acidic, neutral, basic).

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Writing Psychology Career Development

03/16/25

Needing help with psychology, writing, or expanding your career ?

If you do, I might be the right person to help! I obtained a bachelor's degree in psychology from Brandeis University and a master's degree in psychology from William James college, and I'm happy... more

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Chemistry

03/16/25

Arrange the solutions in order of increasing acidity. Given Ka & Kb values

Arrange the solutions in order of increasing acidity. Ka (NH4+) = 5.6 x 10-10 Kb (ClO2-) = 9.1 x 10-13 NaCl, NH4Cl, NaHCO3, NH4ClO2, NaOHWhere to even begin?

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Chinese

03/16/25

What's the best way to learn Chinese characters?

Many students meet the challenge of learning Chinese characters by finding the rules or some effective ways. For example, have you noticed the connection among single-component characters,... more

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