Calculate the amounts of formic acid and formate

Assignment Help Biology
Reference no: EM13934629

1. Calculate the pH of a solution which is 0.428 M in oxalic acid and 1.44 M in oxalate.

2. What is the pH of a solution that is 45.5 mM in acetic acid and 1.11 M in acetate?

3. A solution which is 3.19X10 to the -3 M in an acid (HA) and 6.78x10 to the -3 M in its conjugate base (A-) is found to have a pH of 8.65. What is the Ka of the acid?

4. Calculate the number of grams of NaH2PO4 (MW=120.0) and the number of grams of Na2HPO4 (MW=142.0) that should be weighed out and dissolved to 1 L to give a 100 mM solution in total phosphate at pH=7.50.

5. Calculate the amounts of formic acid and formate that must be used to make 1 L of buffer at pH= 3.80 and that is 250 mM in total formic acid / formate.

Reference no: EM13934629

Questions Cloud

About the what is the firms net float : Tanner Tavern writes four checks a day for an average amount of $5,400 each. These checks generally clear the bank four days after they are written. In addition, the firm generally receives and deposits checks amounting to $18,700 each day. All depos..
Design a dietary programme : Choose 3 conditions from the body systems covered throughout this module and design a dietary programme for each of these conditions.
Suppose a job required parts costing : Suppose a job required parts costing $200 and technician time costing $100.What would be the total cost of the job?
Discount interest-what is the effective interest rate : This question illustrates what is known as discount interest. Imagine you are discussing a loan with a somewhat unscrupulous lender. You want to borrow $31,000 for one year. The interest rate is 13.6 percent. You and the lender agree that the interes..
Calculate the amounts of formic acid and formate : A solution which is 3.19X10 to the -3 M in an acid (HA) and 6.78x10 to the -3 M in its conjugate base (A-) is found to have a pH of 8.65. What is the Ka of the acid?
Digital measurements of millions of trees indicate : Digital measurements of millions of trees indicate that previous studies likely overestimate the amount of carbon stored by temperate U.S. forests, according to a new NASA study.
Outline a nutritional treatment strategy : Give a brief description, discuss the cause and pathogenesis (with emphasis on the nutritional understanding of these), outline a nutritional treatment strategy, and design a dietary programme specifically beneficial to the condition.
What rate would you actually be paying here : You are looking at a one-year loan of $15,500. The interest rate is quoted as 8.9 percent plus four points. A point on a loan is simply 1 percent (one percentage point) of the loan amount. Quotes similar to this one are common with home mortgages. Wh..
Calculate overhead allocation rates based on direct labor : Calculate overhead allocation rates based on direct labor hours, direct labor cost, and machine time.

Reviews

Write a Review

Biology Questions & Answers

  Making capacity after traumatic brain injury

Summarize the given article - Recovery Over 6 Months of Medical Decision-Making Capacity after Traumatic Brain Injury

  Why are data sources so important in the health sciences

Why are data sources so important in the health sciences? What do you think are important criteria for finding good data? What could be a potential problem with sources of data and how could this be avoided?

  Conversion of the amino acid phenylalanine

Phenylketonuria-Individuals with this disorder are unable to produce the enzyme responsible for the conversion of the amino acid phenylalanine to the amino acid tyrosine.

  What would be the phenotypes of male and female offspring

What would be the phenotypes of the male and female offspring?

  Determine the allele frequency

A population of cats can be either black or white; the black allele has complete dominance over the white allele. Given a population of 1,000 cats.

  What is the amino acid sequence of this peptide

What is the amino acid sequence of this peptide. Does the calculated (CAI) value support the hypothesis that the gene encoding the seven amino acid peptide is likely to be foreign gene?define .

  Is this solution a strong electrolyte, a weak electrolyte

1. (TCO 4) Hadley needs to make a 10% (m/v) NaCl solution for use in an experiment.(a) What is the solute in the resulting solution? What is the solvent in the solution? How do you know? (b) Is this solution a strong electrolyte, a weak electrolyte, ..

  Determination of the genotypes

Ataxia in humans is conditioned by the recessive autosomal allele, normal coordination by. A normal woman has children with an ataxic man.

  Non polar compounds

The dominant bonds holding together non-polar compounds that are immersed in aqueous solution are, and the forces that hold pure solutions of non-polar compounds are

  Describe how structure relates to function in this system

Give an example of a simple structure/function relationship in animal physiology and describe how structure relates to function in this system.

  Lipid droplets in the endoplasmic reticulum

It is thought that excess lipids in the cell are packaged into lipid droplets in the endoplasmic reticulum. Explain why lipid droplets bare surrounded by a phospholipid monolayer and not a phospholipid bilayer, like other vesicles that bud from the e..

  What information does each test provide

A Western Blot (immunoblot) can be used as both a direct and as an indirect test. Explain how, comparing it first to a direct ELISA, and then to an indirect ELISA. Where do the antibodies and antigens come from in each case? What information does ..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd