a) A student A weighed .50 Ca(OH)2 for his saturated solution and student B weighed 0.23...

90.2K

Verified Solution

Question

Chemistry

a) A student A weighed .50 Ca(OH)2 for his saturated solutionand student B weighed 0.23 g, Both students dissolved it in 60 mlof water and both had solid left in their solution beforefiltrating. After filtrating to a clear solution, which student hadthe most concentrated solution? What would the effect on the volumeof HCl titrant used and the calculated Ksp of the reaction if oneof the students had a couldy solution after filtering and proceededto titrate it compared to a clear solution?
(b) A saturated solution of CA(OH)2 is prepared and filtered. If9.32 mL of 0.045 M HCl is used to titrate a 10 ml sample of thesolution to end point:
- how many moles of Ca^2+, OH- were in the original 10 mLsample
- what are the concentrations of Ca^2+ and OH- in the saturatedsolution?
- what is the molar solubility for Ca(OH)2 under theseconditions?
- Calculate Ksp for Ca(OH)2 under these conditions
(c) If change in entropy of the universe can tell us whether aprocess will be spontaneous, why do we need delta G (Gibb's freeenergy)

Answer & Explanation Solved by verified expert

4.0 Ratings (811 Votes)

Answer A We are given student A weighed 50 CaOH2 for his saturated solution and student B weighed 023 g volume of CaOH2 dissolve from both student 60 mL We know each compound has specific solubility for each 100 mL of solution We know CaOH2 is slightly soluble in water so in the 60 mL of water CaOH2 dissolved same amount See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member