What is the ph at the equivalence point

Reference no: EM13695670

Question- 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.

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

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

3) What is the pH at the equivalence point?

Express your answer to two significant figures and include the appropriate units.

Reference no: EM13695670

Questions Cloud

What is the ph after 500 ml of water is added : Question- What is the pH after 500 mL of water is added. You will need a calculator with a logarithm function to answer this question.

A variety of units can be used to measure the concentration : A variety of units can be used to measure the concentration of solute in a solution. In general, a concentrated solution is one where the amount of solute in a given volume of solvent is great. A dilute solution is one where the amount of sol..

What force is required for the object to reach : A constant force is applied to a 5 kg object over a distance of 4 meters. If all of this work is converted to kinetic energy, what force is required for the object to reach 1.5 m/s from an initial state of rest

Find the magnetic field produced at the point : Find the magnetic field produced at the point (0,b,0). What are their individual directions? 2) A current I flows clockwise in a square loop of side w located with corners at (0,0,0), (0,w,0), (w,w,0), and (w,0,0) (in cartesian) . Find the magne..

What is the ph at the equivalence point : Question- 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.

Obtain what is the magnitude of the electric force : What is the magnitude of the electric force between two electrons separated by a distance of 0.14 nm

A current i flows in a semi-infinite straight wire : A current I flows in a semi-infinite straight wire along y = 2b, z = 0 from very large positive values of x to the point (0,2b,0), then around a semicircular wire centered upon (0,b,0) and in negative values of x in the z = 0 plane to the point (0,..

How accurate is this watch, expressed as a percentage : A watch manufacturer claims that its watches gain or lose no more than 10s in a year. How accurate is this watch, expressed as a percentage

The potential energy of the spring : A spring whose stiffness is 1170 N/m has a relaxed length of 0.43 m. If the length of the spring changes from 0.29 m to 0.80 m, what is the change in the potential energy of the spring?

User Account

All Pages