Why is it important the Erlenmeyer flasks be dry upon addition of the saturated Ca(IO3)2 aliquot?
Why is it important the Erlenmeyer flasks be dry upon addition of the saturated Ca(IO3)2 aliquot?
A saturated solution of calcium iodate contains 2.37 g/L of Ca(IO3)2. (a) What is the solubility of calcium iodate in mol/L? (b) What are the concentrations of Ca2+ and IO3 – ion, respectively, in the saturated solution? (c) Calculate the Ksp value for Ca(IO3)2. Part b ) Silver ion, Ag+ , readily forms complex ion, Ag(S2O3)2 3– , with thiosulfate, S2O3 2– , according to the following equation: Ag+ (aq) + 2S2O3 2– (aq) ⇌ Ag(S2O3)2 3– (aq); Kf =...
Suppose a student titrates a 10.00-mL aliquot of saturated Ca(OH)2 solution to the equivalence point with 14.30 mL of 0.0224 M HCl. What was the initial [OH − ]? WebAssign will check your answer for the correct number of significant figures .064 M 1 Incorrect: Your answer is incorrect. What is the experimental value of Ksp?
Ksp of Ca(IO3)2 lab questions 1) Why is it necessary to filter the calcium iodate solution through dry filter paper, without adding any water? 2) If water had been added during the filtration process, how would this affect your calculated value for the Ksp of calcium iodate? Clearly explain whether your value would be too high or too low compared to the actual Ksp and why.
Why is it so important to keep the silica gel saturated with solvent at all times during preparation and development of a column? How would the quality of separation be affected if the column was allowed to run dry? 3.
Question Completion Status: QUESTION 1 Why don't you have to accurately record the amount of Ca(OH)2 used in the saturated solution? The Ca(OH)2 only serves as the spectator ions in this experiment. The amount or concentration of Ca(OH)2 is not important in this experiment. We are only interested in the amount of Ca(OH)2 that dissolves at each temperature (which is found after filtration via titration), and not the entire amount of Ca(OH)2 that is used in the saturated solution before...
Dry Lab (use Ksp and Kç values from your text) Which of the following metals will ppt first following the addition of NaOH? Ba or Ca or 1. (2 pts) Co What is the molar solubility of Ca(OH)2? What is the pH of a saturated Ca(OH)2 solution? 2. (3 pts) In the first qual lab, why did PbCl2 (s) dissolve in hot water, but AgCl (s) did not? Answer in terms of Kp and AHsoly (which is endothermic). 3. (3...
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
ca 2
de that can man have killed millions of fish. In addition mollusks that feed on K. brevis. People who eat these bivalves from paralytic shellfish poisoning, a food poisoning that can cause severe gastrollile symptoms, such as tingling in the fingers or toes. Use your results to explain why these so-called 'red occur in coastal water. 2. Outbreaks of cyanobacterial intoxication associated with lakes and ponds are reported annually. What would cause an increased number of cases in...
1.what is the difference between money and capital 2.why marketing and demand analysis is important for financial management? 3.beginning of better Financial management depend upon the best investment analysis? Explain with real world examples
using pictures and a maximum of 10 words, explain why an oven-dried
5-ml conical vial and drying tube(step 1 and 2 of part 1) are used
in the reaction. do both please! also the notebook pages are the
procedure
(1) Using pictures and a maximum of 10 words, explain why an oven-dried 5-ml conical vial and drying tube (step 1 and 2 of Part 1) are used in the reaction. (2) After the addition of benzophenone to the mixture of...