a 0.1 m solution of which of the following ions is orange? my answer is cr207^2-......
a 0.1 m solution of which of the following ions is orange? my answer is cr207^2-... please explain why
Homework Answers
In Cr2O72- ion, cromium has +6 Oxidation state.lone pair of oxygen transfer to vacant d orbital of Cromium.This also referred to as ligand to metal charge transfer.For this reason dicromate ion shows the colour.
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a 0.1 m solution of which of the following ions is orange? my
answer is cr207^2-......
Question 14 1 pts A solution contains 0.1 M Ba2+ ions and 0.1 M Ag+ ions....
Question 14 1 pts A solution contains 0.1 M Ba2+ ions and 0.1 M Ag+ ions. Addition of an equal volume of a 0.5 M solution of which reagent will cause precipitation of a silver salt but not a barium salt? OKNO Na2SO4 Naci O NaNO3
Please explain in words and in equation. (5 pts) Chromium (VI) forms two different oxyanions, the orange dichromate...
Please explain in words and in equation.
(5 pts) Chromium (VI) forms two different oxyanions, the orange dichromate ion, Cr207, and the yellow chromate ion, CrO42- The equilibrium reaction between the two ions is Cr2O72- +H20 (1) orange 2 CrO42- + 2 H+ (aq) yellow At equilibrium the solution starts out looking amber a color between orange and yellow. Explain what would happen to the solution of sodium hydroxide is added. 2-
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1...
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1 M sodium hydroxide reacted with 25.0 cm of 0.1 M phosphoric acid, H3PO4, solution. If the experiment is repeated using phenolphthalein in place of the methyl orange as the indicator the volume of the sodium hydroxide used to cause the indicator to change colour is 50.0 cm'. This is because phenolphthalein changes colour when a different number of hydrogen ions in the acid have...
Q3) Which ions are present in the orange solution after adding HC2H3O2 + NH4C2H3O2 (Heating 1...
Q3) Which ions are present in the orange solution after adding HC2H3O2 + NH4C2H3O2 (Heating 1 min.) + K2CrO4 to the white ppt after separating Mg+2 ion.
Please explain the concept behind this: Why D is the correct answer? 36. Considering 0.1 M...
Please explain the concept behind this: Why D is the
correct answer?
36. Considering 0.1 M aqueous solutions of each of the following, which solution has the lowest pH? |(A) Na2CO3 (B) Na3PO4 (C) Na2S (D) NaC (E) CH2COONa
You make a 0.1 M solution with acid HA, a monoprotic acid. The Ka for this...
You make a 0.1 M solution with acid HA, a monoprotic acid. The Ka for this acid is 1.0E-8. If HA is mixed with a 50 M NaCl solution (no common ions with HA), determine the percent ionization of HA. So I calculated that the ionic strength of the solution is equal to 0.2 and found the activity coefficent to be 0.7469. When I plugged in the values into the Ka=(activity of A- * activity of H3O+)/activity of HA equation,...
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the...
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) = H(aq) + MO"(aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH the color reverts to yellow a. Why does adding 6 M HCl to...
4) Why is the pH of a 0.1 M solution of sodium fluoride not equal to...
4) Why is the pH of a 0.1 M solution of sodium fluoride not equal to 7? A) The sodium ion reacts with water to release hydroxide ions, making the solution basic. B) The floride ion reacts with water to release hydroxide ions, making the solution basic. The sodium ion reacts with water to release hydrogen ions, making the solution acidic. D) The fluoride ion reacts with water to release hydrogen ions, making the solution acidic.
my Nules || Ask Your Teac The concentration of hydroxide ions in an aqueous solution is...
my Nules || Ask Your Teac The concentration of hydroxide ions in an aqueous solution is 3.8x109 M. What is the concentration of hydronium ions in this solution at 25°C? M Need Help? 2. - 3 points WAS OSGENCHEM1 14.1.WA.017. My Notes Ask Your Teache Calculate the concentration of the hydroxide ion (OH) in an aqueous solution if the hydronium ion (H20) concentration is 4.98 x 10 Kw - [H,0*1(OH) - 1.01x10-14 at 25°C. moll mol/L. The lon-product constant for...
which solution has the higher pH in water: 0.1 M Fe(ClO4)2 or 0.1 M Fe(ClO4)3
which solution has the higher pH in water: 0.1 M Fe(ClO4)2 or 0.1 M Fe(ClO4)3
Question 14 1 pts A solution contains 0.1 M Ba2+ ions and 0.1 M Ag+ ions. Addition of an equal volume of a 0.5 M solution of which reagent will cause precipitation of a silver salt but not a barium salt? OKNO Na2SO4 Naci O NaNO3
Please explain in words and in equation.
(5 pts) Chromium (VI) forms two different oxyanions, the orange dichromate ion, Cr207, and the yellow chromate ion, CrO42- The equilibrium reaction between the two ions is Cr2O72- +H20 (1) orange 2 CrO42- + 2 H+ (aq) yellow At equilibrium the solution starts out looking amber a color between orange and yellow. Explain what would happen to the solution of sodium hydroxide is added. 2-
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1 M sodium hydroxide reacted with 25.0 cm of 0.1 M phosphoric acid, H3PO4, solution. If the experiment is repeated using phenolphthalein in place of the methyl orange as the indicator the volume of the sodium hydroxide used to cause the indicator to change colour is 50.0 cm'. This is because phenolphthalein changes colour when a different number of hydrogen ions in the acid have...
Please explain the concept behind this: Why D is the
correct answer?
36. Considering 0.1 M aqueous solutions of each of the following, which solution has the lowest pH? |(A) Na2CO3 (B) Na3PO4 (C) Na2S (D) NaC (E) CH2COONa
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) = H(aq) + MO"(aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH the color reverts to yellow a. Why does adding 6 M HCl to...
4) Why is the pH of a 0.1 M solution of sodium fluoride not equal to 7? A) The sodium ion reacts with water to release hydroxide ions, making the solution basic. B) The floride ion reacts with water to release hydroxide ions, making the solution basic. The sodium ion reacts with water to release hydrogen ions, making the solution acidic. D) The fluoride ion reacts with water to release hydrogen ions, making the solution acidic.
my Nules || Ask Your Teac The concentration of hydroxide ions in an aqueous solution is 3.8x109 M. What is the concentration of hydronium ions in this solution at 25°C? M Need Help? 2. - 3 points WAS OSGENCHEM1 14.1.WA.017. My Notes Ask Your Teache Calculate the concentration of the hydroxide ion (OH) in an aqueous solution if the hydronium ion (H20) concentration is 4.98 x 10 Kw - [H,0*1(OH) - 1.01x10-14 at 25°C. moll mol/L. The lon-product constant for...
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