Lastly, one method used to detect the presence and quantity of lead ions in water involves...
Lastly, one method used to detect the presence and quantity of lead ions in water involves adding sodium chromate to the water. The reaction produces a colored precipitate.
a. Write a reaction showing how aqueous lead (II) nitrate reacts with sodium chromate. You will need to research the formula for sodium chromate and the solubility of the products.
b. Research and then give the color and formula of the colored product formed.
c. Explain how the production of a colored product could be used to determine the amount of lead in the water.
FYI... A smartphone app has been developed to detect the intensity of colored product and thus determine the amount of lead in water.
Homework Answers
a] Pb[NO3]2[aq]+Na2Cro4[aq] 
PbCrO4[s] +2aNO3[aq]
b] Lead chromate is as soluble as brick , and precipates from aqueous solution as a yellow solid .
c] Lead [2]chromate is achemical compound, It has a yellow colour and is insoluble in water and hence used to detect amount of lead in water.
Add Answer to:
Lastly, one
method used to detect the presence and quantity of lead ions in
water involves...
a) whats the reaction for aqeuous lead (II) nitrate reacting with sodium chromate? b) what's the...
a) whats the reaction for aqeuous lead (II) nitrate reacting with sodium chromate? b) what's the color and formula for the colored product formed? c) how could the production of a colored product be used to find the amount of lead within the water?
please help i cant figure them out Consider the insoluble compound nickel(II) carbonate, NiCO3. The nickel...
please help i cant figure them out
Consider the insoluble compound nickel(II) carbonate, NiCO3. The nickel ion also forms a complex with cyanide ions. Write a net ionic equation to show why the solubility of NiCO3(s) increases in the presence of cyanide and calculate the equilibrium constant for this reaction. Solubility product constant data is found in the Chemistry References. For Ni(CN)4?: K = 2.0 1031. Use the pull-down boxes to specify states such as (aq) or (s). A solution...
#5 Write the solubility product expression for PbCl2. Using the concentration for the Pb+2 and Cl-...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
The presence of iron ions in drinking water can cause discoloration of the water, a change in taste, darkening of p...
The presence of iron ions in drinking water can cause discoloration of the water, a change in taste, darkening of prepared foods, and, in some cases health problems. A slow and uniform precipitation of iron, as Fe(OH), can be used as a gravimetric analysis technique. This can be facilitated when the precipitating OH is generated within the solution using urea decomposition: H2NCONH2 + H20 CO2 + 2 NH3 The NH3 generated converts to OH via this reaction: H2O + NH,...
1. If you have 0.20 mol of silver permanganate (AgMNO4), which has a solubility of about...
1. If you have 0.20 mol of silver permanganate (AgMNO4), which has a solubility of about 16.7 g/L, what is the minimum amount of water you'll need to get it all into solution? At what temperature? Report your answer to the nearest whole mL. Write balanced full molecular, full ionic and net ionic equations for the reaction between sodium hydroxide and aluminum nitrate. Full Molecular Full Ionic Net Ionic 3. Write balanced full molecular, full ionic and net ionic equations...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate Ce4(aq)Fe2 (aq)>Ce3*(aq) + Fe3 (aq) A cerium(IV) sulfate solution is prepared by dissolving 40.47 g of Ce(SO42 in water and diluting to a total volume of 1.000 L. A total of 19.41 mL of this solution is required to reach the endpoint in a titration of a 100.0-mL sample containing Fe(aq). Determine the concentration of Fe2 in the original solution It is desired precipitate,...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
Hello, i did a lab where i was given a sample of contaminated water and must determine the identity of the metals and m...
Hello, i did a lab where i was given a sample of contaminated water
and must determine the identity of the metals and must percipitate
one out. I was able to determine the identity of metal Y which is
aluminium and metal X which is lithium. Im confused on part 3
though. lithium and alumnium are soluble in almost anything and i
cant use hydroxide or carbonate since lithium is in there, some
help please! I would also like to...
When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
please help i cant figure them out
Consider the insoluble compound nickel(II) carbonate, NiCO3. The nickel ion also forms a complex with cyanide ions. Write a net ionic equation to show why the solubility of NiCO3(s) increases in the presence of cyanide and calculate the equilibrium constant for this reaction. Solubility product constant data is found in the Chemistry References. For Ni(CN)4?: K = 2.0 1031. Use the pull-down boxes to specify states such as (aq) or (s). A solution...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
The presence of iron ions in drinking water can cause discoloration of the water, a change in taste, darkening of prepared foods, and, in some cases health problems. A slow and uniform precipitation of iron, as Fe(OH), can be used as a gravimetric analysis technique. This can be facilitated when the precipitating OH is generated within the solution using urea decomposition: H2NCONH2 + H20 CO2 + 2 NH3 The NH3 generated converts to OH via this reaction: H2O + NH,...
1. If you have 0.20 mol of silver permanganate (AgMNO4), which has a solubility of about 16.7 g/L, what is the minimum amount of water you'll need to get it all into solution? At what temperature? Report your answer to the nearest whole mL. Write balanced full molecular, full ionic and net ionic equations for the reaction between sodium hydroxide and aluminum nitrate. Full Molecular Full Ionic Net Ionic 3. Write balanced full molecular, full ionic and net ionic equations...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate Ce4(aq)Fe2 (aq)>Ce3*(aq) + Fe3 (aq) A cerium(IV) sulfate solution is prepared by dissolving 40.47 g of Ce(SO42 in water and diluting to a total volume of 1.000 L. A total of 19.41 mL of this solution is required to reach the endpoint in a titration of a 100.0-mL sample containing Fe(aq). Determine the concentration of Fe2 in the original solution It is desired precipitate,...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
Hello, i did a lab where i was given a sample of contaminated water
and must determine the identity of the metals and must percipitate
one out. I was able to determine the identity of metal Y which is
aluminium and metal X which is lithium. Im confused on part 3
though. lithium and alumnium are soluble in almost anything and i
cant use hydroxide or carbonate since lithium is in there, some
help please! I would also like to...
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Most questions answered within 3 hours.
-
Classify the tonicity of a solution made by dissolving 12mg of
sodium chloride in 1.0mL of...
asked 5 minutes ago -
Consider the equilibrium reaction: 2A (aq) + 3B (aq) <-->
C (aq) (in my notation <-->...
asked 6 minutes ago -
A recent poll found that 21% of a random sample of 1200 people
lost jobs due...
asked 12 minutes ago -
Indicate whether aqueous solutions of the following substances
contain ions. If so, write formulas for the...
asked 8 minutes ago -
Include at least one psychology theory, model or concept
discussed in Chapter 1, 2 or the...
asked 18 minutes ago -
Need help in drawing out a map pathway of pentose phosphate
pathway and pyruvate dehydrogenase/citric acid...
asked 25 minutes ago -
Question 1
At the end of Year 6,
South Co.'s tax department estimates that they will...
asked 27 minutes ago -
Use standard enthalpies of formation to determine
ΔHorxn for:
1. 3NO2(g) + H2O(l) → 2HNO3(aq)
+...
asked 31 minutes ago -
Abigail Adams was hired as an associate professor of economics
at Heartland University. She was the...
asked 33 minutes ago -
consider the overall reaction: AB(g) + CB(g) ⟶ A(g) + CB2(g)
A proposed mechanism for this...
asked 40 minutes ago -
In fruit flies, assume bright red eyes (r) and curly wing (w)
are encoded by two...
asked 55 minutes ago -
Consider the compounds represented by the following names:
Compound A: 2,3-dimethylpentane Compound B: 3,4-dimethyl-3-pentene
Compound C:...
asked 1 hour ago