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- We prepare a solution by mixing 0.10 L of 0.12 M sodium chloride with 0.23 L of a 0.18 M MgCl2 solution. What volume of a 0.20 M silver nitrate solution is needed to precipitate all the Cl- ions in the solution as AgCl?
Problem 9
Problem 21a
Calculate the molarity of each solution. a. 1.22 mol of KI in 1.15 L solution
Problem 21c
Calculate the molarity of each solution. c. 132.4 mg NaCl in 255.4 mL of solution
Problem 23
What is the molarity of NO3– in each solution? a. 0.150 M KNO3 b. 0.150 M Ca(NO3)2 c. 0.150 M Al(NO3)3
Problem 25
What is the molarity of NO3– in each solution? a. 0.225 M NaNO3 b. 0.225 M Mg(NO3)2 c. 0.225 M Al(NO3)3
Problem 26a
what is the molarity of Br- in each solution? a. 0.100 M KBr
Problem 26b
What is the molarity of Br- in each solution? b. 0.150 M CaBr2
Problem 27a
How many moles of KCl are contained in each solution? a. 0.556 L of a 2.3 M KCl solution
Problem 29a
What volume of 0.200 M ethanol solution contains each amount in moles of ethanol? a. 0.45 mol ethanol
Problem 29c
What volume of 0.200 M ethanol solution contains each amount in moles of ethanol? c. 1.2⨉10-2 mol ethanol
Problem 31
A laboratory procedure calls for making 100.0 mL of a 1.30 M K2SO4 solution. What mass of K2SO4 (in g) is needed?
Problem 33
A chemist wants to make 3.00 L of a 0.250 M NaNO3 solution. What mass of NaNO3 (in g) should the chemist use?
Problem 39
To what volume should you dilute 50.0 mL of a 12 M stock HNO3 solution to obtain a 0.100 M HNO3 solution?
Problem 42
Consider the reaction: Li2S(aq) + Co(NO3)2(aq) → 2 LiNO3(aq) + CoS(s) What volume of 0.150 M Li2S solution is required to completely react with 225 mL of 0.175 M Co(NO3)2?
Problem 44
What is the molarity of ZnCl2 that forms when 25.0 g of zinc completely reacts with CuCl2 according to the following reaction? Assume a final volume of 275 mL. Zn(s) + CuCl2(aq) → ZnCl2(aq) + Cu(s)
- A 25.0-mL sample of a 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M lead(II) nitrate solution and this precipitation reaction occurs: 2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq). The solid PbCl2 is collected, dried, and found to have a mass of 2.45 g. Determine the limiting reactant and the theoretical yield.
Problem 45
Problem 45c
A 25.0-mL sample of a 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M lead(II) nitrate solution and this precipitation reaction occurs: 2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq) The solid PbCl2 is collected, dried, and found to have a mass of 2.45 g. Determine the the percent yield.
Problem 46
A 55.0-mL sample of a 0.102 M potassium sulfate solution is mixed with 35.0 mL of a 0.114 M lead(II) acetate solution and this precipitation reaction occurs: K2SO4(aq) + Pb(C2H3O2)2(aq) → 2 KC2H3O2(aq) + PbSO4(s) The solid PbSO4 is collected, dried, and found to have a mass of 1.01 g. Determine the limiting reactant, theoretical yield, percent yield.
Problem 48
Classify each compound as a strong electrolyte or nonelectrolyte. a. K2SO4 b. C6H12O6 c. K2CO3 d. CH3OH
Problem 49
Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. a. AgNO3 b. Pb(C2H3O2)2 c. KNO3 d. (NH4)2S
Problem 50
Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. a. AgI b. Cu3(PO4)2 c. CoCO3 d. K3PO4
- Complete and balance the following equation. If no reaction occurs, write “NO REACTION.” NaOH(aq) + FeCl3(aq) → ?
Problem 51
Problem 51a
Complete and balance each equation. If no reaction occurs, write 'NO REACTION.' a. LiI(aq) + BaS(aq)
Problem 51b
Complete and balance each equation. If no reaction occurs, write 'NO REACTION.' b. KCl(aq) + CaS(aq) →
Problem 51c
Complete and balance each equation. If no reaction occurs, write 'NO REACTION.' c. CrBr2(aq) + Na2CO3(aq) →
- Complete and balance each equation. If no reaction occurs, write “NO REACTION.” b. NaCl(aq) + Hg2(C2H3O2)2(aq) → c. (NH4)2SO4(aq) + SrCl2(aq) →
Problem 52
Problem 52a
Complete and balance each equation. If no reaction occurs, write 'NO REACTION.' a. NaNO3(aq) + KCl(aq) →
- Write a molecular equation for the precipitation reaction that occurs (if any) when each pair of aqueous solutions is mixed. If no reaction occurs, write “NO REACTION.” 1. lithium sulfate and lead(II) acetate 2. strontium nitrate and potassium iodide
Problem 53
Problem 53a
Write a molecular equation for the precipitation reaction that occurs (if any) when each pair of aqueous solutions is mixed. If no reaction occurs, write 'NO REACTION.' a. potassium carbonate and lead(II) nitrate
Problem 53c
Write a molecular equation for the precipitation reaction that occurs (if any) when each pair of aqueous solutions is mixed. If no reaction occurs, write 'NO REACTION.' c. copper(II) nitrate and magnesium sulfide