Define the acid-dissociation constant of hydrocyanic acid

Assignment Help Chemistry
Reference no: EM13192791

The acid-dissociation constant of hydrocyanic acid(HCN) at 25.0C is 4.9x10^-10. What is the pH of a aqueous solution of 0.080M sodium cyanide (NaCN)?

Reference no: EM13192791

Questions Cloud

Define the rupture of chemical bonds : The energy from radiation can be used to cause the rupture of chemical bonds. A minimum energy of 941 kJ/mol is required to break the nitrogen-nitrogen bond in N2.
Identify the critical business functions : Identify the Critical Business Functions (CBFs) a midsized organization would need to restore after a catastrophic failure occurs, and suggest the ways the organization would determine the order in which it restores its CBFs.
Compute the volume of concentrated hcl : Calculate the volume of concentrated HCL (37% by weight, density 1.19 g/mL) that must be added to 500 mL of .10 M ammonia to make
Explain sodium chloride express in grams : Sodium Chloride (NaCl), Please express answer in grams and breakdown of how answer was derived
Define the acid-dissociation constant of hydrocyanic acid : The acid-dissociation constant of hydrocyanic acid(HCN) at 25.0C is 4.9x10^-10. What is the pH of a aqueous solution of 0.080M sodium
State what is the final temperature of the mixture : If you have 230 mL of water at 25 deg celcius and add 140 mL water at 95 deg celcius. What is the final temperature of the mixture?
Create a graphical calculator with buttons : Create a graphical calculator with buttons that can add, subtract, multiply, divide, +/-, Sin, Cos, Tan, clear and Modulus and write a method for each of these calculations that will accept the needed incoming numbers and return the calculated value.
Describe why each of other solvents is less desirable : Explain why each of other solvents is less desirable than the solvent you have chosen. Acetonitrile, dimethylformamide, hexane, methylene chloride are our solvent choices.
Create a windows application and design document : create a complete C# Windows application and design documents based on the following specifications and instructions.

Reviews

Write a Review

Chemistry Questions & Answers

  What is the total pressure in the flask

A 1.30 g sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 degrees Celcius and a pressure of 715 mmHg.

  Explain dna sequence identical to that of an ape

A certain human gene was shown to have only 80% of its DNA sequence identical to that of an ape, but its corresponding protein sequence has 95% identity

  What is approximate ph of new solution after neutralization

A buffer is formed by mixing 100 mL of 0.1 M NH4Cl with 50 mL of 0.3 M NH3. To this solution 12 mL of 0.1 M NaOH is added. What is the approximate pH of the new solution after neutralization? Assume a Kb of 1.8 × 10^-5 for the weak base.

  Calculate the final temperature of the water

A 100.0 g sample of water at 90.°C is added to a 500.0 g sample of water at 10.°C. Calculate the final temperature of the water.

  Determine the final concentration of the solution

A 1.8M solution of 65 mL is diluted to a volume of 248 mili litres. A portion of that solutions 124-mili litres is diluted using water of 137 mili litres. Determine the final concentration of this solution?

  Determine which enantiomer phenylbutene gives the e product

Determine which enantiomer of 2-iodo-3-phenylbutene gives the E product (2R, 3R or 2S, 3R), and explain clearly (using unambiguous diagrams) why that is the case.

  How many milliliters of 0.54m hcl solution are needed

how many milliliters of 0.54M HCL solution are needed to react completely with 4.6g of zinc to form zinc (II) chloride?

  How many grams of a stock solution is needed

How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?

  State what is the partial pressure of oxygen

A gaseous mixture of O2 and N2 contains 30.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 505mmHg ?

  State a technician in a large pharmaceutical research firm

As a technician in a large pharmaceutical research firm, you need to produce 350.mL of 1.00 M potassium phosphate buffer solution of pH = 6.87. The pKa of H2PO4- is 7.21.

  What is the vapor pressure of solution

a solution is prepared by dissolving 396 grams of sucrose in 624 grams of water. what is the vapor pressure of this solution at 30 degrees celsius.

  What is the pressure in millimeters of mercury

What is the pressure in millimeters of mercury of 0.0115 mol of helium gas with a volume of 219 mL at a temperature of 55 circ C?

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