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Which acid or base (W-Z) should be used to form salts with salbutamol and phenoxymethylpenicillin in...
Please I need help on this. I'm so lost 1. Acetic acid (H)CO2H) has k, =...
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
if anyone can check these answers for me and tell me which are right or wrong id appreciate it 0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more...
if anyone can check these answers for me and tell me which are
right or wrong id appreciate it
0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more than one isomer will be obtained, which is fine as long as the desired isomer is one of the major products.) several steps HOOC 4. Sn, HC 4.KMnO. .KMnO 4.Sn, HC 3.KMnO 3. CHCI, AİCİ, 3. Sn, HC . HNO, H SO 2. HNO,, H:SO4 1,...
A buffer solution is able to maintain a constant pH when small amounts of acid or...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
Section A: Multiple Choices- mark the correct answer 1. The distinguishing characteristic of all electrolyte solutions...
Section A: Multiple Choices- mark the correct answer 1. The distinguishing characteristic of all electrolyte solutions is that they A. contain molecules B. conduct electricity. C. react with other solutions D. always contain acids. E. conduct heat. 2. Which of the following compounds is a nonelectrolyte? A. NaOH B. HNO c. C,HO(ethanol) D. KF E. CH,COOH (acetic acid) 3. Identify the major ionic species present in an aqueous solution of K2SO4 A. K, s, o B. K2 S 40 C....
Please answer all multiple choice All questions need to be answered! Questions 1-20 are multiple choice...
Please answer all multiple choice
All
questions need to be answered!
Questions 1-20 are multiple choice questions. Please mark the correct circle on the Scantron form. Only the Scantron form will be graded. Scantron must be filled in before time is called Which of the following acids is not a strong acid? 5 HI b. HBr to SEHNO, HF HESO. Venter 2. Which of the following is an example of an empirical formula: a Cs Ho HO LP Fea(SO) d)...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
11 Department of Biological Sciences BIOCHEMISTRY Test 2.2018 H. Nucleic Acid, Sequencing of DNA: Amino Acids...
11 Department of Biological Sciences BIOCHEMISTRY Test 2.2018 H. Nucleic Acid, Sequencing of DNA: Amino Acids Hydrolysis of salt Laboratory buffers, Polyprotie acids QUESTIONS 1. The DNA strand complementary to the strand 3-GTAGCGTAT-Y' would have the sequence a SLTACOCATAT-3 b.3.CATOXICATA-S c. 3-ATGCGTATA-S" ATATGCGTAS 2. When cytosine is treated with bisulfite, the amino group is replaced with a carbonyl group. Identify the resulting base a. adenine b. guanine c uracil d. thyminee. typoxanthine 3. How many amino acids would be in...
All of the following questions are in relation to the following journal article which is available...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
if anyone can check these answers for me and tell me which are
right or wrong id appreciate it
0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more than one isomer will be obtained, which is fine as long as the desired isomer is one of the major products.) several steps HOOC 4. Sn, HC 4.KMnO. .KMnO 4.Sn, HC 3.KMnO 3. CHCI, AİCİ, 3. Sn, HC . HNO, H SO 2. HNO,, H:SO4 1,...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
Section A: Multiple Choices- mark the correct answer 1. The distinguishing characteristic of all electrolyte solutions is that they A. contain molecules B. conduct electricity. C. react with other solutions D. always contain acids. E. conduct heat. 2. Which of the following compounds is a nonelectrolyte? A. NaOH B. HNO c. C,HO(ethanol) D. KF E. CH,COOH (acetic acid) 3. Identify the major ionic species present in an aqueous solution of K2SO4 A. K, s, o B. K2 S 40 C....
Please answer all multiple choice
All
questions need to be answered!
Questions 1-20 are multiple choice questions. Please mark the correct circle on the Scantron form. Only the Scantron form will be graded. Scantron must be filled in before time is called Which of the following acids is not a strong acid? 5 HI b. HBr to SEHNO, HF HESO. Venter 2. Which of the following is an example of an empirical formula: a Cs Ho HO LP Fea(SO) d)...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
11 Department of Biological Sciences BIOCHEMISTRY Test 2.2018 H. Nucleic Acid, Sequencing of DNA: Amino Acids Hydrolysis of salt Laboratory buffers, Polyprotie acids QUESTIONS 1. The DNA strand complementary to the strand 3-GTAGCGTAT-Y' would have the sequence a SLTACOCATAT-3 b.3.CATOXICATA-S c. 3-ATGCGTATA-S" ATATGCGTAS 2. When cytosine is treated with bisulfite, the amino group is replaced with a carbonyl group. Identify the resulting base a. adenine b. guanine c uracil d. thyminee. typoxanthine 3. How many amino acids would be in...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
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