What is the ph before any naoh is added

Assignment Help Chemistry
Reference no: EM13715427

Problem- Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.055 M HCN with 0.075 M NaOH. Ka = 4.0*10-10 for HCN Figure 17.11.

a) What is the pH before any NaOH is added?

b) What volume of base, in milliliters, is required to reach the equivalence point?

c) What is the pH at the equivalence point? HopHelpCh17N8.

d) What indicator would be most suitable to determine the endpoint? HopHelpCh17N9 Bromthymol blue Alizarin yellow GG bromcresol purple bromocresol green

Articulate your answer to two significant figures as well as comprise the appropriate units.

Reference no: EM13715427

Questions Cloud

Describe market size and market potential : What information can you find to help you estimate your market size and market potential
Explain what was the concentration of cu2+ ions : A portion of this solution was found to have an absorbance of 0.15 under the same conditions that were used to generate the given absorbance vs. [Cu2+] graph. What was the concentration of Cu2+ ions in the original sample
Describes the solubility rules : For each anion used in today's experiment: Cl-, I-, PO43-, SO42-, and use the solubility rules to determine if a precipitate SHOULD form when using the reagents in the procedure
What is the initial temperature of a sample of water : What is the initial temperature of a sample of water if by the addition of 12,258J, a 55g sample has a final temp of 95 C? The specific heat of water is 4.184J/gC.
What is the ph before any naoh is added : Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.055 M HCN with 0.075 M NaOH. Ka = 4.0*10-10 for HCN Figure 17.11. What is the pH before any NaOH is added
What is the ph of a solution of 25.0ml of 1.35x10-3m hcl : What is the pH of a solution of 25.0mL of 1.35x10-3M HCl(aq) that has been titrated with 10.73mL of 1.00x10-3M NaOH. Assume 25°C.
Find two major factors that affect necessary escape velocity : Gravity is at the heart of a wide variety of astronomical phenomena. To understand them, you need to understand how two bodies interact via gravity. what two major factors would affect the necessary escape velocity.
What is the rationale for your choice : Describe a situation in which an internal elevator would be more appropriate than an external elevator. What is the rationale for your choice.
Calculate the value of kp for the reaction : Sulphur trioxide (SO3), a precursor to the manufacture of sulphuric acid, is formed by oxidising sulphur dioxide with oxygen in the presence of a catalyst. 2SO2+ O2 ? 2SO3 If 610 g of sulphur dioxide (SO2) and 280 g of oxygen were used as the init..

Reviews

Write a Review

Chemistry Questions & Answers

  Evaluate the value of go in kj for the reaction

Given the values of ?Gfo given below in kJ/mol, calculate the value of ?Go in kJ for the reaction at 298 K.: 3 NO2(g) + H2O(l) => 2 HNO3(l) + NO(g) ?Gfo (NO2) = 51.0 ?Gfo (H2O(l)) = -235.3 ?Gfo (HNO3) = -81.7 DGfo (NO) = 86.8

  How to calculate q for the entire process

You have a 1.23-mol sample of water at ?30.°C, and you heat it until you have gaseous water at 140.°C. Calculate q for the entire process. Use the following data.

  Explain methanol must burned to raise the temperature

How many grams of methanol (CH3OH) must burned to raise the temperature of 1.00 kg H2O from 5.0 Celsius to 90.0 Celsius

  Explain diamonds are measured in carats

Diamonds are measured in carats where 1 carat= 0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond

  Explain what is the mass of air in the bottle

The density of air at 19 °C is 0.0020 g/ml at about atmospheric pressure. Although air is a mixture, we can take the average molecular weight of the molecules in air to be 27.37 amu. (a) What is the mass of air in the bottle? (b) By how much does ..

  Explain what product would you expect from the reaction

what product would you expect from the reaction of one equivalent of 1 propanol with phthalic anhydride ?

  A mixture of 200 moles of h2 300 moles of mh3 400 moles of

a mixture of 2.00 moles of h2 3.00 moles of mh3 4.00 moles of co2 and 5.00 moles of n2 exert a total pressure of

  Evaluate the ph after the addition of 20.0 ml of koh

A 50.0-mL volume of 0.15 M is titrated with 0.25 M KOH. Calculate the pH after the addition of 20.0 mL of KOH.

  Calculate the total kinetic energy of the gaseous mixture

a 100.-L flask contains a mixture of methane, CH4, and argon at 25°C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. calculate the total kinetic energy of the gaseous mixture.

  Explain the preparation of tin oxide and magnesium oxide

What are the procedural difference between the preparation of tin oxide and magnesium oxide

  What specific molecules will a person who is eating few fats

What specific molecules will a person who is eating few fats and carbohydrates now have problems making during times of low glucose and what is the normal source of these molecules

  Explain living carbon samples the campfire made

Recall "living" carbon samples show 15.3 d/min*g (carbon). note: CaCO3 is 12.00% carbon, and 14C has a half-life of 5730yr.

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