Step 2: What is the conversion factor to convert from molecules to atoms of
carbon? (Include units in your answer.)
Solved
Show answers
More tips
- H Health and Medicine How to Whiten Teeth and Get the Perfect Smile...
- F Food and Cooking How to Make Thin Pancakes: Recipe and Tips...
- S Style and Beauty Is Hot Scissor Haircutting Beneficial or Dangerous?...
- S Style and Beauty How to Get Rid of Under Eye Bruises?...
- F Food and Cooking Is Bacon Good for You?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
Answers on questions: Chemistry
- C Chemistry Evidence suggest that life began on earth sometimes between 4.6 billion and years ago...
- C Chemistry During lab, you measured the heat of reaction by mixing solutions of FeCl3 and NaOH. (a) Write the balanced net precipitation reaction that occurred. (Use the lowest possible...
- C Chemistry What is other name of molecules...
- B Business Greystone Inc. plans to pay a $4.30 dividend during the upcoming year, and dividends are expected to grow at the rate of 8% per year. The risk free rate is 6% and the expected...
- M Mathematics What is 0.2 as a fraction in the simplist form...
- B Business Long-Term Solvency Analysis The following information was taken from Station Company s balance sheet: Fixed assets (net) $940,500 Long-term liabilities 209,000 Total liabilities...
- H History Las colonias españolas de america ¿de que proveian a la corona?...
- A Advanced Placement (AP) Who has pa dlet (without space) ? only girls please :)...
Ответ:
With an acid-base titration formula, The molarity of the H₃PO4₄ solution = 0.06372 M
Further explanationTitration is a procedure for determining the concentration of a solution by reacting with another solution which is known to be concentrated (usually a standard solution). Determination of the endpoint/equivalence point of the reaction can use indicators according to the appropriate pH range
Titrations can be distinguished including acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases is used.
An acid-base titration there will be a change in the pH of the solution. When the acid is alkaline the pH drops, and vice versa if the acid is alkaline then the pH will rise.
From this pH change a Titration Curve can be made which is a function of acid / base volume and pH of the solution
Acid-base titration formula
Ma, Mb = acid base concentration
Va, Vb = acid base volume
na, nb = acid base valence
Known variable
A 25.00 ml sample of H₃PO₄ 54.93 ml of 0.04345 m Ca(OH)₂.
Asked
The molarity of the H₃PO₄ solution
Answer
H₃PO₄ is a weak acid with valence 3 because it releases 3 H⁺ atoms
H₃PO₄ -> 3H + + PO₄⁻
Ca(OH)₂ is a strong base with valence 2 because it releases 2OH⁻ ions
Ca(OH)₂ ---> Ca₂ + + 2OH-
We enter the numbers into the formula:
M₁.V₁.n₁= M₂.V2₂.n₂
1 = H₃PO4₄
2 = Ca(OH)₂
M1.25 ml .3 = 0.0435. 54.93 ml.2
M1 = 0.06372
So the molarity of the H₃PO4₄ solution = 0.06372 M
Learn morethe best tool to find the volume of that she needs to neutralize the acid
link
Determine the endpoint of the titration.
link
acid-base
link
Identify the acids and the bases
link
endpoint titration
link