One gram of insoluble Pb^131 I2 containing only radioactive 131^I was added to 100 mL of water. Then one gram of soluble NaI (with 127^I) was added to the solution and completely dissolved.
Which one of the following statements is correct?
Homework Answers
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One gram of insoluble Pb^131 I2 containing only radioactive
131^I was added to 100 mL of...
I understand that equivalents is the ratio of the # of moles of a reactant or...
I understand that equivalents is the ratio of the # of moles
of a reactant or reagent compared to the # of moles of the
substrate. But I am confused on how to answer this question and why
the procedure would call for more NaI than Vanillin if Vanillin is
the substance needed substituted. Can you help?
Thanks!
3. How many equivalents of sodium iodide are used in this experiment? Show your calculation Speculate about why the procedure calls for...
One mole of sodium chloride is added to 100 ml of water in beaker A. One...
One mole of sodium chloride is added to 100 ml of water in beaker A. One mole of glucose, C_6H_12O_6, is added to 100ml of water in beaker B. How much more will the freezing point of water be lowered in beaker A than in beaker B? Two thirds as much twice as much three times as much Beakers A and B will experience the same degree of freezing point depression. It is impossible to determine. Which of the following...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
I need help figuring out the flowchart and if I have the right answers for the...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
I need helppp with my AP chem lab
Purpose: To calculate the amount of AgNO3 present in an unknown solution of water through the process of gravimetric analysis with NaCl. Background: Have you ever had difficulty lathering soap or find that the scum in your shower constantly needs to be removed? These are signs of “hard water.” Soap does not lather well in hard water because metal ions, such as Ca2+, form precipitates, creating “soap scum.” A precipitate is an insoluble compound that forms when soluble ions in...
I need help with the ice table. Please and thank you! TEEL WILL questions) Give the balanced equation for the sol...
I need help with the ice table. Please and thank you!
TEEL WILL questions) Give the balanced equation for the solvation of Ca(OH) in water color).(-) e coloq) + 2OH coas + H20lnas Write the solubility-product expression, Ksp, for Ca(OH)2. (cor][ on 3² Ca (OH),ka = [ca(OH)₂] kop= [cator ]² Explain in complete sentences using equations if necessary for illustration at is the stoichiometric relationship of the hydroxide ion concentration to calcium ion concentration? For wery mole of [C ]...
help please? this was the only other information given REPORT SHEET Determination of the Solubility-Product Constant...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
yes, which the data for the experiment is given in the pictures Problem #1 Use this...
yes, which the data for the experiment is given in the
pictures
Problem #1 Use this data to calculate Ksp of Ca(OH)2. The Ca(OH) used was 15.0 ml, titrated with 0.05M HCI DATA TABLE: TITRATION OF THE SUPERNATANT LIQUID Trial 1 Trial 2 Data Volume of CaOH, solution, mL (supernatant liquid) Initial buret reading, mL Final buret reading, mL Volume of HCl required for titration, mL Equivalence point (mL) Average Kop Problem #2 R PPPPPP LABORATORY REPORT YOU MUST SHOW...
I understand that equivalents is the ratio of the # of moles
of a reactant or reagent compared to the # of moles of the
substrate. But I am confused on how to answer this question and why
the procedure would call for more NaI than Vanillin if Vanillin is
the substance needed substituted. Can you help?
Thanks!
3. How many equivalents of sodium iodide are used in this experiment? Show your calculation Speculate about why the procedure calls for...
One mole of sodium chloride is added to 100 ml of water in beaker A. One mole of glucose, C_6H_12O_6, is added to 100ml of water in beaker B. How much more will the freezing point of water be lowered in beaker A than in beaker B? Two thirds as much twice as much three times as much Beakers A and B will experience the same degree of freezing point depression. It is impossible to determine. Which of the following...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
I need help with the ice table. Please and thank you!
TEEL WILL questions) Give the balanced equation for the solvation of Ca(OH) in water color).(-) e coloq) + 2OH coas + H20lnas Write the solubility-product expression, Ksp, for Ca(OH)2. (cor][ on 3² Ca (OH),ka = [ca(OH)₂] kop= [cator ]² Explain in complete sentences using equations if necessary for illustration at is the stoichiometric relationship of the hydroxide ion concentration to calcium ion concentration? For wery mole of [C ]...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
yes, which the data for the experiment is given in the
pictures
Problem #1 Use this data to calculate Ksp of Ca(OH)2. The Ca(OH) used was 15.0 ml, titrated with 0.05M HCI DATA TABLE: TITRATION OF THE SUPERNATANT LIQUID Trial 1 Trial 2 Data Volume of CaOH, solution, mL (supernatant liquid) Initial buret reading, mL Final buret reading, mL Volume of HCl required for titration, mL Equivalence point (mL) Average Kop Problem #2 R PPPPPP LABORATORY REPORT YOU MUST SHOW...
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