Explain the phosphate ion forms insoluble precipitates

Assignment Help Chemistry
Reference no: EM13516987

Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions, removing them from solution. Suppose that a solution is 5.0×10-2 M in calcium chloride and 8.0×10-2 M in magnesium nitrate.What mass of sodium phosphate would have to be added to 2.0 L of this solution to completely eliminate the hard water ions? Assume complete reaction.

Reference no: EM13516987

Questions Cloud

Compute the ending inventory at may 31 : Compute the ending inventory at May 31 and cost of goods sold using the FIFO and LIFO methods. Prove the amount allocated to cost of goods sold under each method.
Explain what are the oxidation number of the central atom : What are the oxidation number of the central atom of the following species. Please explain how to do this.
Compute realized gross profit - using cost-recovery method : Compute the amount of realized gross profit to be recognized on the 2008 income statement, prepared using the installment-sales method.
Evaluate how many grams of the first reactant are necessary : For the following precipitation reactions, calculate how many grams of the first reactant are necessary to completely react with 54.0 grams of the second reactant.
Explain the phosphate ion forms insoluble precipitates : Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions
Estimate the frequency of the photon : A hydrogen atom initially in the ground state absorbs a photon, which excites it to the = 4.00 state, estimate the frequency of the photon
The concentration are titrated separately with a strong base : Two acids, each approximately 0.01 M in concentration, are titrated separately with a strong base. The acids show the following pH values at the equivalence point: HA, pH = 9.5, and HB, pH = 8.5.
Compute the present value of the minimum lease payments : What type of lease is this? Explain - Compute the present value of the minimum lease payments.
Find the change in temperature of the gas : An ideal monatomic gas is contained in a vessel of constant volume 0.270 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. Find the change in temperature of the gas

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the ph at each point indicated in the titration

Calculate the pH at each point indicated in the titration of 100.00 mL of 0.0755 M NaClO2 with 0.0412 M HCl.

  State the ionic equation and net ionic equation

Complete and balance the following equation Write the ionic equation and net ionic equation. Indicate spectator ions and determine if a precipatie would form. (NH4)2C03(aq)+CaCl2

  Explain how many outer atoms and lone pairs

How many outer atoms and lone pairs are present in a molecule with a see-saw geometry

  Compute the detection limit of the reaction

calculate the detection limit of this reaction for each halide, the value below which there will be no observed reaction.

  Depict the reaction scheme of the diels alder rxn

Draw the reaction scheme (with arrows) of the Diels Alder rxn between maleic anhydride and furan. draw both the endo and exo adducts

  Explain standard biological conditions of all the enzymes

assume standard biological conditions and that all the enzymes are present to catalyze the reactions . the following are sequential enzyme reactions in a pathway

  State the exclusive product of hydration of an alkyne

prepared in good yield as the exclusive product of hydration of an alkyne with water, SO4 and Hg to form ketone

  Determine the molarity of each of the ions present

determine the molarity of each of the ions present in the following aqueous salt solutions.

  Explain how would excess solvent affect the melting point

How would excess solvent affect the melting point. How will impurities affect the melting point.

  Explain many gases are shipped in high-pressure containers

Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0 {\rm L} and which contains {\rm O_2} gas at a pressure of 16500 {\rm kPa} at 23^\circ C.

  Calculate the ka of lactic acid

Lactic acid has one acidic hydrogen atom in its structure. A 0.10 M solution of lactic acid has a pH of 2.44. Calculate the Ka of lactic acid.

  Explain when a mixture of acetylene and oxygen is ignited

When a mixture of 12.5g of acetylene (C2H2) and 12.5g of oxygen (O2) is ignited, the resultant combustion reaction produces CO2 and H2O

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