complexometric titration multiple choice questions

But avoid … Asking for help, clarification, or responding to other answers. Worked example: Determining solute concentration by acid-base titration. stream The reaction between EDTA and all metal ions is 1 mol to 1 mol. E. Calcium gluconate. In a conductometric titration experiment, a solution of 0.1 M Ba(OH) 2 … The range of question types includes text response, numerical response, drag and drop and multiple choice. CHEM1109 November 2008 Example Multiple Choice Questions 11. Access the answers to hundreds of Titration questions that are explained in a way that's easy for you to understand. endobj Titrations . ( ) G- Calculate the pH of solution obtained by mixing 50 ml 0.1 N HCCOH with 20 ml of 0.15N NaOH ( K a of HCOOH = 1.76x 10. SELECTIVE TITRATIONS OF METAL IONS IN THE PRESENCE OF MULTIPLE METAL IONS . C water leaves the cell faster than it enters the cell. Practice: Titration questions. The analogous result for a complexation titration shows the change in pM, where M is the metal ion’s concentration, as a function of the volume of EDTA. E. Calcium gluconate. Email. When cells are placed into an isotonic solution (i.e. 17) The complexometric titration where EDTA is used, carried out at basic pH. s�\ `c`tJҼ@�Q��c�a�!�� (��T�9�a�D�7��p00z�L@l��.�@�h#7Ã�_ )i� endstream endobj 17 0 obj<> endobj 19 0 obj<> endobj 20 0 obj<> endobj 21 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 22 0 obj<> endobj 23 0 obj<> endobj 24 0 obj[/ICCBased 27 0 R] endobj 25 0 obj<> endobj 26 0 obj<>stream Question: Please Answer The Multiple-choice Questions: 1. A. A. ZnSO4. a) Sod. 0000001213 00000 n EDTA is often used as the disodium salt, #"Na"_2"H"_2"Y"#. Google Classroom Facebook Twitter. Presence Of … b) reaction rate is optimum in basic pH. 0000000830 00000 n B water enters the cell faster than it leaves the cell. AP Chemistry Quiz: Titration - Ch. B. KI. Buffer Selection in Complexometric Titrations. (4 points for each question) 1. the solution and cell fluid have the same osmotic pressure): A no exchange of water across the cell membrane occurs. 0000003827 00000 n SELECTIVE TITRATIONS OF METAL IONS IN THE PRESENCE OF MULTIPLE METAL IONS . a) Sod. PHYSICAL ANALYTICAL METHODS Solubility Determinations Which one of the following is most soluble in the water? }N|��@|��O΁��S��t�B1%Ɠ�W�2]:i�i��3| Yw�0�kbV�y$H5�OO�+}��*E3�l��Tǜ�*��;DjJ�&��A��}hT5�>��^�D�ɐJL�%��!k�;g�y{s�o)؅��圊�ҿ O�� endstream endobj 27 0 obj<>stream In chapter 9.2 we learned that an acid–base titration curve shows how the titrand’s pH changes as we add titrant. the solution and cell fluid have the same osmotic pressure): A no exchange of water across the cell membrane occurs. 4 0 obj endobj a) H 2 PO 4-b) H 3 PO 4. c) H 4 PO 4 + d) PO 4 3-Question 2 EDTA is classified as a? A worksheet on titration calculations and percentage uncertainties. 0000002164 00000 n H��W�n�F��,g�p2/�t�:n� P��e(��E��|qϝJ"M��7E�k��uι�/x��v�]�xYU�iV-��2c Participate in the Sanfoundry Certification contest to get free Certificate of Merit. b) oxalate. 1- Multiple Choice Questions: ( 9 marks) 1- Ag+ could be determined using the following indicator: a- fluorescein b- Eosin c- Rhodamine 6G d- none of the above 2- AgBr has to be filtered off before titration using: a- Volhard's Method b- Mohr's Method c- Fajan's Method d- none of the above <>>> Get help with your Titration homework. '�r��`~ y"�y�c��d}�� ?3��$P��ޖ1��W�6�0��/�T'��V��"*zާ/�Uƀ�/f�_�@�� Q��! In the laboratory experiment, Heat of Acid / Base Reactions , you saw that a 2.0 M solution of HNO 3 was a great counductor of electrcity. Which of the following drug compounds cannot be analyzed by direct complexometric titration? Titration Methods and Applications. 2. Provide details and share your research! MathJax reference. The versatility, sensitivity, and general convenience of complexometric titrations are dependent on the correct choice of indicators for endpoint detection. Chapter 17: Multiple choice questions. 5) (3 Marks) Question II (7 Marks) 1- Mark the following statements with True (√) or False (X) (4 Marks) Q7 Name the most important complexing agent employed in complexometric titration. Titration. 0000007075 00000 n Unit 12 Quiz--Acid and Base Titrations Multiple Choice (Choose the best answer.) Now that we know something about EDTA’s chemical properties, we are ready to evaluate its usefulness as a titrant. �-J��7��WBk�u"��e_V��e��G��6W�p��{vSc�柆�\��9��ٗaCÚuߴ}\�IC��R0?��^F�}�m�3G@"=�*�>�8�j&�ڦ�ˬ��YV��q��Ӳ@��#�YF�t�`��ս�?2��p��y�'c,�)�T�V�s)ݻ��v=�O9��@��w�Z��$�dp��L!p�"ܴ�%��SͱY�ܼ��k��t%�N�Q��peD��#��VZ�{Z�!NC��"I�g@؁!T�G��7钷��]��ß.��uX��7��dV�Mm��PC�ȕ� &��Gd$7��Ȇ��iE�! It has four carboxyl groups and two amine groups that can act as electron pair donors (Lewis bases). 1 0 obj Choose the one alternative that best completes the statement or answers the question. 0000004254 00000 n -Complexometric titration curves are usually a plot of pM = –log [M] as a function of the volume of titrant added. A. In the reaction: Al3+ 2(aq) + 3C 2O 4 -(aq) ⇌ Al(C 2O 4) 3 3 (aq), Al3+ is a: a) Lewis acid but not a Bronsted-Lowry acid b) both a Lewis and a Bronsted-Lowry acid 0000051769 00000 n B water enters the cell faster than it leaves the cell. B water enters the cell faster than it leaves the cell. A worksheet on titration calculations and percentage uncertainties. APPLICATIONS OF COMPLEXOMETRIC TITRATIONS . Which of the following drug compounds cannot be analyzed by direct complexometric titration? Multiple choice questions. Based on the responses submitted by participants for both noise-free and noised data, it is clear that properly performing all steps is essential for obtaining quality results. A. c) thiocetamide. The Royal Society of Chemistry would like to thank Naomi Hennah (Teacher, ... Complexometric titration. 5- Aspirin can be determined by direct titration with standard NaOH. 5) (3 Marks) Question II (7 Marks) 1- Mark the following statements with True (√) or False (X) (4 Marks) Neutral or weak basic solution. 0000002130 00000 n WS---Titration-Calculations-and-Questions. 0000000922 00000 n d) all. Why? Multiple Choice/Fill in the Blank Section. EDTA, often written as #"H"_4"Y"#, is a common ligand in complexometric titrations. ... To practice all areas of Applied Chemistry for Campus Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. �V��)g�B�0�i�W��8#�8wթ��8_�٥ʨQ��Q�j@�&�A)/��g�>'K�� t�;\�� ӥ$պF�ZUn��(4T�%)뫔�0C&��Z��i��8��bx��E��B�;��P��ӓ̹�A�om?�W= A complexometric titration uses the formation of a coloured complex to indicate the endpoint. Free Response Questions 28. About this resource. <> 0000001092 00000 n Q8. d) all. Practice: Titration questions. endobj d) all A complexometric titration uses the formation of a coloured complex to indicate the endpoint. (v��gi��J�S��,�� H6T`�Hp!�k�Z)��b ,-\y.x�>�O�bї;�`��%T�v�>�{�N��xȰSlJV�= K��r��f��X��3�ƎL\�%}��tǊ��9S=u�΃2�*�+�gx�-��^�#p۫�Se��J�e��|��ͩw#��#��MZ�h}��+t��x�� `�x�бn�3�|��6��L�A�yڗ�;��L�sq��Қ@/ D��z>|׾��C�W��j��f�W]a�v'�&-_��b�!�6�خ�(�%T^w`Pd`��%�� %��q��A�G�+F�'^c$9��M|G��+ʆ�L7�)��R�MI�ow��DH�;H�q'. Please be sure to answer the question. C. CuSO4. Difficulty: Tough. c) thiocetamide. H��yTSw�oɞ��c [��5la�QIBH�ADED��2�mtFOE�.�c��}��0��8�׎�8G�Ng��9�w��߽�� '��0 �֠�J��b� <> 3. 2. 17) The complexometric titration where EDTA is used, carried out at basic pH. At pH 7.00, calculate the [Zn2+] in a solution having an analytical zinc concentration of 1.00 x 10-3 M and 1.00 x 10-6 M in uncomplexed EDTA. Google Classroom Facebook Twitter. Titration of a strong acid with a strong base. Complexometric Titration or chelatometry is a type of volumetric analysis wherein the coloured complex is used to determine the endpoint of the titration. "F$H:R��!z��F�Qd?r9�\A&�G��rQ��h��E��]�a�4z�Bg��E#H �*B=��0H�I��p�p�0MxJ$�D1��D, V��ĭ��KĻ�Y�dE�"E��I2��E�B�G��t�4MzN��r!YK� ��?%_&�#��(��0J:EAi��Q�(�()ӔWT6U@��P+��!�~��m��D�e�Դ�!��h�Ӧh/��']B/��ҏӿ�?a0n�hF!��X��8��܌k�c&5S��6�l��Ia�2c�K�M�A�!�E�#��ƒ�d�V��(�k��e��l ��}�}�C�q�9 t��0zۙ�]��ĸ�? %PDF-1.5 Q-2. It has four carboxyl groups and two amine groups that can act as electron pair donors (Lewis bases). Find the concentration of free Mg2+ in 0.050 M Na 2 [Mg(EDTA)] at pH 9.00. (Note: This is the titration of a weak acid with a weak base.) Neutral or weak basic solution. The mean corrected titration volume was 15.X5 mL (0.015X5 L). When cells are placed into an isotonic solution (i.e. Sulphide. �d�:��}K��9F��R�0��[�+��;�Psm� P�A$>��=�ir8��-copd]��X�>��S�&�e@��#�'m�]��o�߰�@��.��Ũ�M��G�wO��{ ΃�II6�'��jƬ�./��+hZ��fR��y�� y�n ��>�_P"c��I�ѓ�9czhǳ��Qs>��{8��ԲV��:�#:�s:��V ( ) G- Calculate the pH of solution obtained by mixing 50 ml 0.1 N HCCOH with 20 ml of 0.15N NaOH ( K a of HCOOH = 1.76x 10. 2. <>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> EDTA, often written as #"H"_4"Y"#, is a common ligand in complexometric titrations. 0000006495 00000 n D. NaNO2. Q6 What are complexometric Titration? Use MathJax to format equations. a) For the stability of complex formed. Unit 12 Quiz--Acid and Base Titrations Multiple Choice (Choose the best answer.) Preparation of Standard Solutions. Repeats of 10 mL samples of the primary standard zinc ion solution of Question 1 were titrated with an EDTA solution of unknown molarity by the method of this experiment. 18) Which is used as masking agent for lead in complexometrric titration? A7: Ethylence diamine tetra acetic acid. The endpoint detection in complexometric titration was revolutionized by Schwarzenbach in the 1940s with the discovery of visual color indicators sensitive to the concentration of metal ions in solution. :�H�T��7��z��R�᭩$ �q��ݰP��ȋ�i�Ǵ �\�$�]X�ח �� N/ExzE�K��A�!b��&��uD��S}Ɗ$ÆT@+NE�C��j�Q'#訷C�5��m�P�S��$�]h�NR��32|A��B�2��Gzi��ㅋ��g�� Zx��jy�# �[�#/#��w�B��}�;��D{&v��LL/Ҹ��r� �k��:|\fh��2�&�F��D��P��;��\��&��jr{,_��P��L#ﻺ�;4��l�� i{{>'.��5�Qm�7��ҔV�G|�'*'�/��D'r�J�J�W��'x1ZԬ'n�I�Km��K@�hL�ި�Щ� {�;/�SR\�奻�rm��_1/P�ׂ�.g�w�fӴ�:�vĤ�jѲ@��]��c?n��MS��1�;&V�{y�]%�I,nY߅��-hO�f�*܊O��t�u�՛��Ux��E�=�Eԓ""Q��)��a�ݷ��طLX�[0��o�Ҙ�,O'D5 *��'H��!b��I|��}A�}p��8:��B��~Z��n"��?/��$>��B|�4>! ]��Jx)e��$��on�2��g^V\��s֩��^��C̯!4�x��$�4 x��Zmo�8� ��EB�/z[,��!��8��r��-��l��̐�%�R�k�6�hg8|��WU��E�~�e��i��:[�/��r��.�H��"m��W��"�\̇?�Ŀa��$`��f��g{[��oa�o��ݮ./��+�"�$d� �Â�ݻ��_^|�?��n�]^�v�ZM�@vT�Ԋ>��}_Ơw��k��V9�I�\�M�Q�� YBsZ�*�y�+�k��̔W4��ZyU�ή��缜]k��a�fב�/`�f�b��"ϊ� Find the concentration of free Mg2+ in 0.050 M Na 2 [Mg(EDTA)] at pH 9.00. a) For the stability of complex formed. D. NaNO2. 0000000616 00000 n Acidic solution. Titration Methods and Applications. Average score for this quiz is 5 / 10. Titrations . the solution and cell fluid have the same osmotic pressure): A no exchange of water across the cell membrane occurs.
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