EP21 New York State Pollution Prevention Institute (NYSP21) Conclusions: 1. Calculate the average value for the Ksp of lithium carbonate at 20°C. 2. Use a reference book or on-line sources to find the actual Ksp of lithium carbonate. 3. Calculate the % error of your calculated Ksp of lithium carbonate.

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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question 1 .... Numbers needed are in the chart above question
sp expressl
(b) Ksp
Ksp = [Fe 3+] [3 OH 1³
(d) Ksp = [Fe3+] [OH-]³
[Fe(OH)3]
Ksp = [Fe 3+] [3 OH]
OD 1
Calculations
Vol of HCI Moles of HCI /Moles of L1₂ COs in [Liz(03] [Li+] Ksp
(A)
26mL (B)
(E)
1
9.75
2.93x10-3
1.47x10-3
2
9.90
2.97x10-3
1.49 x 10-3
0.147M 0.294 1.27x10²
0.149 0.298 1.32 x 10-2
0.150 0.300 1.35x10-2
3
10.0
3.00 x 10-3
1.50 × 10-3
P21 New York State Pollution Prevention Institute (NYSP21)
Conclusions:
1.
Calculate the average value for the Ksp of lithium carbonate at 20°C.
2.
Use a reference book or on-line sources to find the actual Ksp of lithium carbonate.
3.
Calculate the % error of your calculated Ksp of lithium carbonate.
4.
Discuss possible sources of error that would account for a discrepancy of greater than 10%.
Questions:
1. If the concentration of [Li*] were doubled (say, by adding a highly soluble Li salt such as Lil), what
would be the new concentration of [CO32] in the saturated solution?
2. If the concentration of [CO32] were doubled (say, by adding a highly soluble carbonate salt such as
Cs₂CO3), what would be the new concentration of [Li] in the saturated solution? Why is the effect
less than in question 1?
633M
1.63
Transcribed Image Text:sp expressl (b) Ksp Ksp = [Fe 3+] [3 OH 1³ (d) Ksp = [Fe3+] [OH-]³ [Fe(OH)3] Ksp = [Fe 3+] [3 OH] OD 1 Calculations Vol of HCI Moles of HCI /Moles of L1₂ COs in [Liz(03] [Li+] Ksp (A) 26mL (B) (E) 1 9.75 2.93x10-3 1.47x10-3 2 9.90 2.97x10-3 1.49 x 10-3 0.147M 0.294 1.27x10² 0.149 0.298 1.32 x 10-2 0.150 0.300 1.35x10-2 3 10.0 3.00 x 10-3 1.50 × 10-3 P21 New York State Pollution Prevention Institute (NYSP21) Conclusions: 1. Calculate the average value for the Ksp of lithium carbonate at 20°C. 2. Use a reference book or on-line sources to find the actual Ksp of lithium carbonate. 3. Calculate the % error of your calculated Ksp of lithium carbonate. 4. Discuss possible sources of error that would account for a discrepancy of greater than 10%. Questions: 1. If the concentration of [Li*] were doubled (say, by adding a highly soluble Li salt such as Lil), what would be the new concentration of [CO32] in the saturated solution? 2. If the concentration of [CO32] were doubled (say, by adding a highly soluble carbonate salt such as Cs₂CO3), what would be the new concentration of [Li] in the saturated solution? Why is the effect less than in question 1? 633M 1.63
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