Calculate oh and ph for nacn

Assignment Help Chemistry
Reference no: EM13713776

Question- Using data from Appendix D in the textbook, calculate [OH?] and pH for each of the following solutions.

a) 0.14M NaCN.

b) 8.4×10?2M Na2CO3.

c) A mixture that is 0.12M in NaNO2 and 0.15M in Ca(NO2)2.

I don't know how to reach these answers thus please show the steps, thank you!

Reference no: EM13713776

Questions Cloud

What is the resolution of an electron microscope : What is the resolution of an electron microscope. What is the typical energy, velocity, momentum, and de Broglie wavelength of electrons typically used in the microscope
What are the first and second ionization energies of sodium : What are the first and second ionization energies of sodium. Compare this to the threshold energy from the photoelectric effect. What can you conclude
Determine the ph of the solution after the addition of hno3 : A 100 mL sample of .10 M NH3 is titrated with .10 M HNO3. Determine the PH of the solution after the addition of 150mL HNO3 the Kb of NH3 is 1.8X10^-5
What is the physical interpretation of three quantum numbers : What is the physical interpretation of the three quantum numbers and what restrictions are placed on them
Calculate oh and ph for nacn : Using data from Appendix D in the textbook, calculate [OH?] and pH for each of the following solutions.
Estimate the enthalpy change for the combustion of one mole : Estimate the enthalpy change for the combustion of one mole of acetylene, C2H2, to form carbon dioxide and water vapor. BE(C?H) = 456 kJ/mol)
Develop a financial planning model : The HR department at a certain company was asked to develop a financial planning model that would help employees address how much their portfolios would be worth in 10 years, 20 years, and when they retire. John was asked to lead this effort a..
What is the volume of a gas that exerts a pressure : What is the volume of a gas that exerts a pressure of 457 mm Hg if it exerted a pressure of 2.50 atm when its volume was 25.0 ml
Define a concentration of aqueous ammonia solution : A concentration of aqueous ammonia solution has a density of 0.90 g/ml and is 28.0% by mass ammonia. determine the molar concentration of this solution

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the molar mass of insulin in g/mol

A solution of 62.4 g of insulin in sufficient water to make 1.000 L of solution has an osmotic pressure of 0.305atm at 25°C. Based on these data, compute the molar mass of insulin in g/mol.

  At equilibrium the rate of change of reactant concentration

At equilibrium the rate of change of reactant concentration is zero. F) As a reaction proceeds backwards toward equilibrium the reactant concentrations rise.

  What is the initial (h2)

consider the following equilibrium system H2(g)+ Br2(g)=2HBr(g) Keq= 14.8 A closed container is initially filled with equal moles of H2 and Br2.When equilibrium is reached the (HBr) is 0.329 mol/L What is the initial (H2)

  Evaluate the standard enthalpies of the reactions

Using the standard enthalpies of combustion, calculate the standard enthalpies of the following reactions: A. C2H5OH(l)+3O2(g)>2CO2(g)+3H2O(l)

  Calculate the heat needed to raise the temperature

Question- The specific heat of aluminum is 0.900J/g degrees C. Calculate the heat needed to raise the temperature of a 45.0 g block of aluminum from 20.5 degrees C to 297.4 degrees C

  Calculate the number of moles of n2 in the tank

a steel tank with a volume of 9.583L contains N2 gas under a pressure of 4.972 atm at 31.8C Calculate the number of moles of N2 in the tank.

  How many grams of khp are needed

How many grams of KHP are needed to exactly neutralize 27.4 mL of a 0.235 M potassium hydroxide solution ?

  Explain the maximum mass of ammonium bromide produced

If 5.00 g Br2 and 3.00 g NH3 react according to the equation below, what is the maximum mass of ammonium bromide produced. 3 Br2(l) + 8 NH3(g) ? 6 NH4Br(s) + N2(g)

  Explain what is the alkalinity of the solution

A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. Now, we add sodium hydroxide (NaOH, strong base) until the pH reaches 7. You can neglect any changes in volume. What is the alkalini..

  Explain find the number of unpaired electrons in each

Some species with two oxygen atoms only are the oxygen molecule, O2, the peroxide ion, O2-2 , the superoxide ion, O2-1 , and the dioxygenyl ion, O2+1 . Draw an MO diagram for each, rank them in order of increasing bong length, and find the number ..

  Calculate the ph and the poh of an aqueous solution

Question- Calculate the pH and the pOH of an aqueous solution that is 0.035 M in HCl(aq) and 0.090 M in HBr(aq) at 25°C.

  Explain equation of line determined from a beer''s law plot

the equation of line determined from a beer's law plot is y=0.195x+0.4. what is the resistance of an unknown water sample if the assumed concentration is 650ohms.

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