Required Discussion_ CO2 in a Bottle - Discussion Group 6

Based on the data in the table, summarize what was shown here, what did they do here? And was this lab successful or not?     Substance  Physical Appearance Odor Density (g/mL) Reacts with NaHCO3 1.      Benzaldehyde  Clear liquid or almost pale yellow It smelled like almonds  1.00 No, significant reaction 2.      MTBE Colorless  Fruity smell to it 1.236 -1.247  No chemical reaction occurred 3.      Urea White solid  A very strong order of ammonia  0.791 No reaction occurred   4.       Acetone Colorless Pungent odor like nail polish remover 1.335 No, did not react with sodium bicarbonate 5.      Glycerol Colorless N/O 1.044 No, it did not cause a reaction 6.      Citric Acid colorless then turns white with sodium bicarbonate added N/O 1.044 Yes, caused fizzy/bubbles to it.

1) Listen -5 The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Cag(PO4)2] solution. You may ignore the additional volume coming from the Ca3(PO4)2 solution to make the calculation simpler. Calculate the new sulfate (SO42) ion concentration at equilibrium with this common ion effect. 6.40 x 10-5 5.25 x 10-5 6.21 x 10-5 5.44 x 10-5 201591..docx LAB EXP. #3 -..docx Show All

What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?

Which of the following are hazards in this lab? Choose all that apply. Group of answer choices NaOH HCl NH3 acetic acid deionized water

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

10 mL of 10 % sodium sulphate solution into a clean test tube. Add 1 drop of 10 % barium chloride. What do you observe? Write an equation to explain your observations in your lab report. C2. Measure out a fresh 10 mL portion of 10 % sodium sulphate into another test tube. Making sure to count the drops, use a dropper to add 30 % calcium chloride solution. Swirl the solution after each drop. Continue until a white precipitate occurs. Write an equation to explain your observations. Which solubility product has the smaller numerical value, that for calcium sulphate or barium sulphate? Explain how you know this is true. C3. Measure out another 10 mL portion of 10 % sodium sulphate into a clean test tube. Add 8 drops of 50 % sulphuric acid and swirl. Count the number of drops (swirl after each drop) of 30 % calcium chloride needed to produce a precipitate of calcium sulphate. Explain why the number of drops of calcium chloride differs in the two experiments. I need equations, observations…

What is the literature value of the Ksp of Ca(OH)2 ?  How far off from this value was your value(s) (6.210 × 10-4 and 6.434 × 10-4 )?  List reasons why your values may be different from literature values.

Subpart 4-6

THIS CAN NOT BE HAND DRAWN!