1. When 0.100 L of a solution containing 0.15 M KBr is added to 0.100 L...
1. When 0.100 L of a solution containing 0.15 M KBr is added to 0.100 L of a solution containing 0.15 M Pb(NO3)2, what precipitate will form?
PbBr2
PbBr
Pb(NO3)2
KNO3
K(NO3)2
PbK
KBr
2. What is the driving force for the reaction described in Q1 above?
The formation of a new insoluble ionic compound
The formation of a gas
the formation of water molecules
the formation of new ions
the formation of a new soluble ionic compound
3. Write out the balanced molecular equation and ionic equation for the overall reaction from Q1 when the 2 solutions are mixed. Then draw a picture diagraming what the beaker will look like (similar to what we have done in class) after the reaction is complete. Represent the soluble ions and insoluble ionic compounds.
Homework Answers
precipitation of product drives the reaction in forwarding direction
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1. When 0.100 L of a solution containing 0.15 M KBr is added to 0.100 L...
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution. This solution is then added to 165 mL of 0.015 M aqueous Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the solution via precipitation as insoluble PbBr2(s). The precipitation reaction that occurs is: PB2+(aq) + 2Br(aq) --> PbBr2(s) What is the maximum mass of product that could be isolated by filtration after the reaction occurs?
A solution is prepared by mixing 0.050 M Pb(NO3)2 with 0.00350 M KBr. The Ksp for...
A solution is prepared by mixing 0.050 M Pb(NO3)2 with 0.00350 M KBr. The Ksp for PbBr2 is 6.6 x 10-6 a. Write a balanced net ionic equation for this chemical reaction b. Determine where this solution will be unsaturated, saturated or super saturated.
A solution containing 1.25 g of KI is combined with a solution containing 2.42 g of...
A solution containing 1.25 g of KI is combined with a solution containing 2.42 g of Pb(NO3)2. What mass of PbI2 would result using the following equation? 2KI(aq) + Pb(NO3)2(aq) = 2 KNO3(aq) + PbI2(s).
An aqueous solution containing 8.16 g of lead(II) nitrate is added to an aqueous solution containing...
An aqueous solution containing 8.16 g of lead(II) nitrate is added to an aqueous solution containing 6.57 g of potassium chloride. Enter the balanced chemical equation for this reaction. Be sure to include all physical states. balanced chemical equation: Pb(NO3)2(aq) + 2 KCl(aq) + PbCl,(s) + 2 KNO3(aq) What is the limiting reactant? O potassium chloride lead(II) nitrate The percent yield for the reaction is 91.6%. How many grams of precipitate is recovered? precipitate recovered: How many grams of the...
In many chemical reactions of two or more compounds, ions are present in the solution that...
In many chemical reactions of two or more compounds, ions are present in the solution that do not participate in the reaction. These ions, known as spectator ions, can be removed from the chemical equation describing the reaction. A chemical equation that has the spectator ions removed is known as a net ionic equation. Reactions between ionic compounds often result in the precipitation of an insoluble compound. Spectator ions and precipitation products of a chemical reaction can be predicted by...
all 4 questions. plz mark the answer clearly. For the Following Questions: Consider the reaction of...
all 4 questions. plz mark the answer clearly.
For the Following Questions: Consider the reaction of Fe(NO3)2 (aq) and KOH(aq). Follow each part to find the correct Molecular, Complete lonic, and Net lonic Equation for this reaction. Solubility rules are very useful when determining the physical states of the products. Solubility Rules for Ionic Compounds Substance Na, K, NHA, NO; SO4 CI, Br",r Ag ОН Rules Ionic compounds which contain these ions are soluble. Most ionic compounds containing sulfate are...
BACKGROUND INFORMATION Read "4.7 Precipitation Reactions" (Page 169 - 172) in the textbook. PRE-LABORATORY QUESTIONS 1....
BACKGROUND INFORMATION Read "4.7 Precipitation Reactions" (Page 169 - 172) in the textbook. PRE-LABORATORY QUESTIONS 1. Explain why elements Si, Al, and Fe, which are abundant in the Earth's crust, are not abundant in seawater. 2. Define precipitate and precipitation reactions. 3. Identify the following compounds as either "soluble" or "insoluble". Soluble? Soluble? Compound NaCl AgCI AgNO3 Ag2SO4 Hg2SO4 Compound CaCl2 Ca(NO3)2 CaSO: CaCO3 Pb3(PO4)2 4. Write a net ionic equation for the reaction between an aqueous solution of lead(II)...
7-7 If 35.0 mL of a 2.0 M solution of NaBr (solution A) was diluted to...
7-7 If 35.0 mL of a 2.0 M solution of NaBr (solution A) was diluted to 500. mL (solution B) and 20.0 mL of this solution were then diluted to 500. mL (solution C), what would be concentration of solution C? 7-8. Which solution has the higher boiling point, 0.500 M NaCl in water or 0.400 M CaBr2 in water? Explain. 7-9.Can a solution have a weight /volume % greater than 100%? Explain. Cr(NO3)s(aq) +Na2Se (aq) - Cr2Se3(s)+ NaNO3(aq) KBr(aq)...
8. (1 point per blank) A solution of Pb(NO3)2 (aq) is mixed with a solution of...
8. (1 point per blank) A solution of Pb(NO3)2 (aq) is mixed with a solution of KI (aq) A solid forms and its identity is The balanced net ionic equation for the solid formation reaction is: The spectator ions are This type of chemical reaction is referred to as: (choices: redox, precipitation, combustion, synthesis, acid-base neutralization)
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
An aqueous solution containing 8.16 g of lead(II) nitrate is added to an aqueous solution containing 6.57 g of potassium chloride. Enter the balanced chemical equation for this reaction. Be sure to include all physical states. balanced chemical equation: Pb(NO3)2(aq) + 2 KCl(aq) + PbCl,(s) + 2 KNO3(aq) What is the limiting reactant? O potassium chloride lead(II) nitrate The percent yield for the reaction is 91.6%. How many grams of precipitate is recovered? precipitate recovered: How many grams of the...
all 4 questions. plz mark the answer clearly.
For the Following Questions: Consider the reaction of Fe(NO3)2 (aq) and KOH(aq). Follow each part to find the correct Molecular, Complete lonic, and Net lonic Equation for this reaction. Solubility rules are very useful when determining the physical states of the products. Solubility Rules for Ionic Compounds Substance Na, K, NHA, NO; SO4 CI, Br",r Ag ОН Rules Ionic compounds which contain these ions are soluble. Most ionic compounds containing sulfate are...
BACKGROUND INFORMATION Read "4.7 Precipitation Reactions" (Page 169 - 172) in the textbook. PRE-LABORATORY QUESTIONS 1. Explain why elements Si, Al, and Fe, which are abundant in the Earth's crust, are not abundant in seawater. 2. Define precipitate and precipitation reactions. 3. Identify the following compounds as either "soluble" or "insoluble". Soluble? Soluble? Compound NaCl AgCI AgNO3 Ag2SO4 Hg2SO4 Compound CaCl2 Ca(NO3)2 CaSO: CaCO3 Pb3(PO4)2 4. Write a net ionic equation for the reaction between an aqueous solution of lead(II)...
7-7 If 35.0 mL of a 2.0 M solution of NaBr (solution A) was diluted to 500. mL (solution B) and 20.0 mL of this solution were then diluted to 500. mL (solution C), what would be concentration of solution C? 7-8. Which solution has the higher boiling point, 0.500 M NaCl in water or 0.400 M CaBr2 in water? Explain. 7-9.Can a solution have a weight /volume % greater than 100%? Explain. Cr(NO3)s(aq) +Na2Se (aq) - Cr2Se3(s)+ NaNO3(aq) KBr(aq)...
8. (1 point per blank) A solution of Pb(NO3)2 (aq) is mixed with a solution of KI (aq) A solid forms and its identity is The balanced net ionic equation for the solid formation reaction is: The spectator ions are This type of chemical reaction is referred to as: (choices: redox, precipitation, combustion, synthesis, acid-base neutralization)
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