Use the References to access important values if needed for this question.A student is asked to standardize a solution of calcium hydroxide. He weighs out 1.05 g potassium hydrogen phthalate (KHC8H O4, treat this as amonoprotic acid)It requires 39.1 mL of calcium hydroxide to reach the endpoint.A. What is the molarity of the calcium hydroxide solution?МThis calcium hydroxide solution is then used to titrate an unknown solution of hydrochloric acidB. If 16.6 mL of the calcium hydroxide solution is required to neutralize 28.0 mL of hydrochloric acid, what is the molarity of the hydrochloric acidsolution?МSubmit Answer5 question attempts remaining

Question
Asked Oct 15, 2019
6 views
Use the References to access important values if needed for this question.
A student is asked to standardize a solution of calcium hydroxide. He weighs out 1.05 g potassium hydrogen phthalate (KHC8H O4, treat this as a
monoprotic acid)
It requires 39.1 mL of calcium hydroxide to reach the endpoint.
A. What is the molarity of the calcium hydroxide solution?
М
This calcium hydroxide solution is then used to titrate an unknown solution of hydrochloric acid
B. If 16.6 mL of the calcium hydroxide solution is required to neutralize 28.0 mL of hydrochloric acid, what is the molarity of the hydrochloric acid
solution?
М
Submit Answer
5 question attempts remaining
help_outline

Image Transcriptionclose

Use the References to access important values if needed for this question. A student is asked to standardize a solution of calcium hydroxide. He weighs out 1.05 g potassium hydrogen phthalate (KHC8H O4, treat this as a monoprotic acid) It requires 39.1 mL of calcium hydroxide to reach the endpoint. A. What is the molarity of the calcium hydroxide solution? М This calcium hydroxide solution is then used to titrate an unknown solution of hydrochloric acid B. If 16.6 mL of the calcium hydroxide solution is required to neutralize 28.0 mL of hydrochloric acid, what is the molarity of the hydrochloric acid solution? М Submit Answer 5 question attempts remaining

fullscreen
check_circle

Expert Answer

Step 1

The reaction between KHP ( i.e KHC8H8O4) a...

help_outline

Image Transcriptionclose

2KC,H,О, Н, +Caа (ОН), () >Са(КС,Н,О,)6о) +2H,0 2(aq) Molar mass of KHP 204g/mol, moles of KHP in 1.05 g 1.05g/204g/mol 0.005mol From the reaction, 2 mole of KHP reacts with 1 mole of Ca (OH)nl " 1molCa (ОH), hence moles of Ca (OH), required for 0.005mol of KHP is 0.00 5molKHPx. 2 =0.0026mol 2molKHP = moles/Volume in L Molarity of Ca (OH), 0.0026mol*1000/39.1-0.066 M 2.

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Hydrocarbons

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Ethylene (C2H4) is the starting material for the preparation of polyethylene. Although typically mad...

A: Considering the given statement shows that 1 mole of C2H4 gives 1411kJ.Hence, 1411kJ of heat is prod...

question_answer

Q: Question 4

A: Solution stoichiometry involves the calculation of concentration of solutions in the given condition...

question_answer

Q: A 100 g sample of Cu is heated to 400 degrees celsius and then plugged into 1000 g of water at 22.6 ...

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the tem...

question_answer

Q: longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom in an excited...

A: Bohr’s theory of atoms was applicable for one electron system. It purposed the energy levels in an a...

question_answer

Q: Qestion # 2 please

A: The reaction involves,

question_answer

Q: calculate molarity 26.33 gC6H12O6 in 1.12 L 33.5 mgNaCl in 112.6 mL of solution

A: The molarity for given solutions are calculated as follows,

question_answer

Q: How many ml of a 0.0025 M NaCl solution can you add to 100ml of a 0.0015 M AgNO3 solution before a w...

A: All known compounds can be dissolve in certain solvents whereas they remain insoluble in other solve...

question_answer

Q: calculate the standard enthalpy change for the fermentation process, in which glucose is converted i...

A: The standard free energy of formation can be defined as the energy change that occurs when a compoun...

question_answer

Q: When 22.2 mL of 0.500 M H,SO4 is added to 22.2 mL of 1.00 M KOH ina coffee-cup calorimeter at 23.50°...

A: Given,Volume of 0.5 M H2SO4 = 22.2 mLVolume of 1.0 M KOH = 22.2 mLVolume of solution = 22.2 + 22.2 =...