Homework Answers
1.
a. If M+ oxidises I-, I- will lose 1 electron and convert back to Iodine atom. Then two Iodine atoms combine to form Iodine molecule, I2. This I2 imparts purple or pink color to the hexane (organic solvent).
b. If no oxidation occurs, no I2 will be formed. Hence, hexane will remain colourless.
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Can someone explain parts a and b please?
Show your work - answers without supporting work...
Voltaic Cells, And the nernst equation I have already got the ans for the question 1....
Voltaic Cells, And the nernst equation
I have already got the ans for the question 1. Please
solve the question 2 for me. Thank you.
1. You put 1 mL of CoH4 into a test tube with 1 mL of KI (aq). Then you add a small amount of a metal salt, MNO, (aq), and shake the mixture. (a) If the M reacts with, and oxidizes the I, what colour would the CoHi4 be? Explain and give any relevant reactions....
1. You put 1 mL of CH4 into a test tube with 1 mL of KI...
1. You put 1 mL of CH4 into a test tube with 1 mL of KI (aq). Then you add a small amount of a metal salt, MNO, (aq), and shake the mixture. (a) If the M reacts with, and oxidizes the 1'. what colour would the CH 4 be? Explain and give any relevant reactions. (1 mark) does not react with the l'? Explain. (b) What colour would the C6H 4 be if the M (1 mark) 2. Consider...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your work. Procedure A. Determination of B...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your
work.
Procedure A. Determination of B for Beer's Law 1. Using a buret, add 4.00 mL of 0.0025 M Fe(NO3)s (which is in 0.1 M HNOs) to a 100- mL volumetric flask. Add enough deionized water to bring the total volume to the mark on the neck of the flask. Stopper and shake the flask. Label this flask “Diluted Fe.” spectrophotometer tubes (cuvettes), they are too small to use at...
can someone actually explain and show me how to do the work ? Organic Chemistry I...
can someone actually explain and show me how to do the work
?
Organic Chemistry I CHEM210-wo, Fall 2019 Prof J Fiorito 6. Which halide ion reacts the fastest with cyclopentyl p-toluenesulfonate in et 073 ethanoll w en 1), B) B: C) cº D) pe
Hi, can anyone please help me with this? i have no clue how to define if...
Hi,
can anyone please help me with this? i have no clue how to define
if a reaction is Oxidation reduction or not. Thanks a lot
OXIDATION-REDUCTION Introduction Chemists refer to reactions which involve a transfer of electrons from one reactant to another as oxidation reduction reactions of just "redox" reactions. Oxidation is defined as a loss of electron and reduction as a gain of electron by a substance during a chemical reaction. The loss of electrons by one substance...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Hi everyone! Can someone solve these and explain them? I haven't solved any questions like these....
Hi everyone! Can someone solve these and explain them? I
haven't solved any questions like these. Thank you!
You have a coffee cup calorimeter (isolated system, heat is measured at constant pressure mix two solutions (Ti-22.07 °C) in the coffee cup. Solution 1 is 50,0 mL - 50.0 B) of HI. Solution 2 is 50.0 mL (50.0 g) of UNKNOWN MOLARITY of LiOH. You kn the LiOH solution is the limiting reagent. Upon mixing the temperature of the mixture cup...
Please show your work (and reasons!) clearly and explain it like you think I'm dumb. I...
Please show your work (and reasons!) clearly and explain it like
you think I'm dumb. I have tried this problem 3 times by myself and
gotten 3 different (wrong) answers! I need your help!
Thanks!
1 3. [2.3 3 A tank originally contains 100 gallons of fresh water. Then water containing lb of salt per gallon is poured into the tank at a rate of 2 gal/min and the mixture is allowed to leave at the same rate. After 10...
Please show all work on a separate sheet and staple to this page. Clearly show "road...
Please show all work on a separate sheet and staple to this page. Clearly show "road maps" and units. I. Calculate molarity of 12.443 g of aluminum sulfate in 250.0 mL solution. II. How many grams of copper(II) sulfate pentahydrate is needed to make 125.0 mL of a 0.550 M solution? III. Determine the amount of potassium chloride in 19.7 g of a solution containing 1.08% potassium chloride by mass. IV. A hard water sample contains 0.0085% calcium ion by...
Please explain, and do step by step! 4. 10 Points. SHOW YOUR WORK CLEARLY a) USE THE FACTOR LABEL METHOD What volume...
Please explain, and do step by step!
4. 10 Points. SHOW YOUR WORK CLEARLY a) USE THE FACTOR LABEL METHOD What volume of a 0.500 M HCl solution is needed to neutralize 10.0 mL of a 0.220 M Ba(OH), solution 2 HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2 H2O(1) b) USE THE FACTOR LABEL METHOD An experiment calls for the addition of 0.250 g of HCl to reaction vessel. You have at your disposal a 0.250 M HCl solution. How...
Voltaic Cells, And the nernst equation
I have already got the ans for the question 1. Please
solve the question 2 for me. Thank you.
1. You put 1 mL of CoH4 into a test tube with 1 mL of KI (aq). Then you add a small amount of a metal salt, MNO, (aq), and shake the mixture. (a) If the M reacts with, and oxidizes the I, what colour would the CoHi4 be? Explain and give any relevant reactions....
1. You put 1 mL of CH4 into a test tube with 1 mL of KI (aq). Then you add a small amount of a metal salt, MNO, (aq), and shake the mixture. (a) If the M reacts with, and oxidizes the 1'. what colour would the CH 4 be? Explain and give any relevant reactions. (1 mark) does not react with the l'? Explain. (b) What colour would the C6H 4 be if the M (1 mark) 2. Consider...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your
work.
Procedure A. Determination of B for Beer's Law 1. Using a buret, add 4.00 mL of 0.0025 M Fe(NO3)s (which is in 0.1 M HNOs) to a 100- mL volumetric flask. Add enough deionized water to bring the total volume to the mark on the neck of the flask. Stopper and shake the flask. Label this flask “Diluted Fe.” spectrophotometer tubes (cuvettes), they are too small to use at...
can someone actually explain and show me how to do the work
?
Organic Chemistry I CHEM210-wo, Fall 2019 Prof J Fiorito 6. Which halide ion reacts the fastest with cyclopentyl p-toluenesulfonate in et 073 ethanoll w en 1), B) B: C) cº D) pe
Hi,
can anyone please help me with this? i have no clue how to define
if a reaction is Oxidation reduction or not. Thanks a lot
OXIDATION-REDUCTION Introduction Chemists refer to reactions which involve a transfer of electrons from one reactant to another as oxidation reduction reactions of just "redox" reactions. Oxidation is defined as a loss of electron and reduction as a gain of electron by a substance during a chemical reaction. The loss of electrons by one substance...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Hi everyone! Can someone solve these and explain them? I
haven't solved any questions like these. Thank you!
You have a coffee cup calorimeter (isolated system, heat is measured at constant pressure mix two solutions (Ti-22.07 °C) in the coffee cup. Solution 1 is 50,0 mL - 50.0 B) of HI. Solution 2 is 50.0 mL (50.0 g) of UNKNOWN MOLARITY of LiOH. You kn the LiOH solution is the limiting reagent. Upon mixing the temperature of the mixture cup...
Please show your work (and reasons!) clearly and explain it like
you think I'm dumb. I have tried this problem 3 times by myself and
gotten 3 different (wrong) answers! I need your help!
Thanks!
1 3. [2.3 3 A tank originally contains 100 gallons of fresh water. Then water containing lb of salt per gallon is poured into the tank at a rate of 2 gal/min and the mixture is allowed to leave at the same rate. After 10...
Please show all work on a separate sheet and staple to this page. Clearly show "road maps" and units. I. Calculate molarity of 12.443 g of aluminum sulfate in 250.0 mL solution. II. How many grams of copper(II) sulfate pentahydrate is needed to make 125.0 mL of a 0.550 M solution? III. Determine the amount of potassium chloride in 19.7 g of a solution containing 1.08% potassium chloride by mass. IV. A hard water sample contains 0.0085% calcium ion by...
Please explain, and do step by step!
4. 10 Points. SHOW YOUR WORK CLEARLY a) USE THE FACTOR LABEL METHOD What volume of a 0.500 M HCl solution is needed to neutralize 10.0 mL of a 0.220 M Ba(OH), solution 2 HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2 H2O(1) b) USE THE FACTOR LABEL METHOD An experiment calls for the addition of 0.250 g of HCl to reaction vessel. You have at your disposal a 0.250 M HCl solution. How...
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