Evaluate the consentration of cn- and the ph for a solution

Assignment Help Chemistry
Reference no: EM13500222

Calculate the consentration of CN- and the PH for a solution that is made by mixing 50mL of 0.1M HCIO4 with 4.2mL of 0.438M NaCN. Assume HCIO4 to be a strong acid, NaCN to be a strong electrolyte ( dissociates completely ) and the pKa for HCN to be 9.21?

Reference no: EM13500222

Questions Cloud

Implementation of information system project : Implementation of information system (IS) projects is central to most organisations' ongoing performance. Significant cost and schedule overruns in IS projects not only pose a direct financial cost to an organisation, but may seriously compromise ..
Explain the mass ratio of magnesium to oxide : Magnesium oxide (MgO) forms when the metal burns in air. (a) If 1.25 g of MgO contains 0.754 g of Mg, what is the mass ratio of magnesium to oxide
What is the angular frequency of the mass : A mass attached to a spring vibrates 7 times in 22.19 seconds. What is the angular frequency (in radians/second) of the mass
Explain hc2h3o2 in order to bring ph to 4.50 : how many grams NaOH must be added to 250mL of .10M HC2H3O2 in order to bring pH to 4.50
Evaluate the consentration of cn- and the ph for a solution : Calculate the consentration of CN- and the PH for a solution that is made by mixing 50mL of 0.1M HCIO4 with 4.2mL of 0.438M NaCN. Assume HCIO4 to be a strong acid, NaCN to be a strong electrolyte ( dissociates completely ) and the pKa for HCN to b..
Determine the power loss in the inductor : An inductor of 219 mH with a resistance of 6 O is connected to a power supply with a maximum voltage of 219 V and a frequency of 69 Hz. Find the power loss in the inductor
Explain why does beer''s law hold more accurately : why does Beer's law hold more accurately for the relationship between absorbance and concentration than that between % transmittance and concentration
Find the magnitude of the linear acceleration of the hoop : An green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. What is magnitude of the linear acceleration of the hoop
Calculate the average mass per hcl molecule : The molar mass of HCl is 36.5 g/mol, and the average mass per HCl molecule is 36.5 amu. Use the fact that 1 amu = 1.6605 * 10-24g to calculate Avogadro's number.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the mechanism of the reaction of acetyl chloride

Outline the mechanism of the reaction of acetyl chloride with NaN3 to give acetyl azide. This reaction is known as Nucleophilic Acyl Substitution.

  Explain how many si atoms are there for each ai atom

Al is added to Si to give an extrinsic semiconductor with a conductivity of 2 ( cm)^-1 How many Al atoms are added per cm^3? How many Si atoms are there for each AI atom

  Explain the values of delta h and delta s

From the values of delta H and delta S, predict which of the following reactions would be spontaneous at 23 degrees celsius. Reaction A: delta H = 10.5 kj/mol

  Explain the best reducing agent under standard conditions

Which reagent is capable under standard conditions, of converting Co2+ (aq) into Co(s) but does not convert Fe2+ (aq) into Fe(s). Which of the following is the best reducing agent under standard conditions

  Explain the pink color of phenolphthalein fade away

Why does the pink color of phenolphthalein fade away and is soda pop acidic. Why

  Explain the empirical formula of a compound

Determine the empirical formula of a compound that is 36.86% N and 63.14% O by the mass

  State how many grams of khp are needed to neutralize

How many grams of KHP are needed to neutralize 54.63 mL of a 0.1051 M NaOH solution?

  Explain the initial temperature of an ideal gas

If the initial temperature of an ideal gas at 2.250 atm is 62.00 °C, what final temperature would cause the pressure to be reduced to 1.750 atm

  What is the molar concentration of the unknown acid

If 145.0 mL of 0.350 M lithium hydroxide is required to titrate 35.0 mL of an unknown monoprotic acid, what is the molar concentration of the unknown acid.

  Calculate the volume of household bleach

A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water,

  What is the mass in kilograms

what is the mass, in kilograms, of Avogadro's number of olympic shot put balls if each one has a mass of 16lb? How does this compare with the mass of Earth, 5.98x10^25 kg.

  State a sample of hydrogen is collected in a eudiometer

A sample of hydrogen is collected in a eudiometer at a temp of 23C. If the atm is 735 torr, what is the pressure of the carbon dioxide

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