Homework Answers
Molecular formula of the given compound is C4H8O2 .
The molecule has four carbon atoms, eight hydrogens and two oxygen atoms.
2) Benzoic acid has molecular formula of C7H6O2
Therefore molecular weight is = (12*7)+(1*6)+(16*2) = (84+6+32) = 122
3) Sodium carbonate have a molecular formula of Na2CO3 and is a base which is frequently used to neutralizes the solution
Option D is correct
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Question 12 4 pts Determine the molecular formula based on the structure listed here. The molecule...
2. Draw a structure with the molecular formula C7H10 that has exactly two rings. 4. Give...
2. Draw a structure with the molecular formula C7H10 that has
exactly two rings.
4. Give IUPAC names for the following structures
(a,b,c,d)
CHEM1014 Homework for Chapter 11 Due Friday, March 20, beginning of class There is not enough room to write the answers on this sheet. Use other sheets of paper for your answers. 1. Draw a structure with the molecular formula C,H, that has exactly one ring. Show all atoms and all bonds 2. Draw a structure with...
Question 4 1 pts What is the term for the actual yield compared to the theoretical...
Question 4 1 pts What is the term for the actual yield compared to the theoretical yield expressed as a percent? O percent yield O actual yield O reaction yield O theoretical yield Question 5 2 pts Identify the expected products of heating baking soda, solid NaHCO3 Gaseous H20 O Solid Na Gaseous carbon dioxide, CO2 Aqueous carbonic acid, H2CO3 Gaseous O2 Solid sodium carbonate, Na2CO3 Question 1 1 pts In this experiment, how can you tell when the baking...
Use the Lewis structure drawn below to answer the following question. A structural formula with one...
Use the Lewis structure drawn below to answer the following question. A structural formula with one C atom, one O atom, and four H atoms is shown. A structural formula with one C atom, one O atom, and four H atoms is shown. The C atom is single-bonded to three H atoms and the O atom. The O atom is also single-bonded to an H atom. The O atom has two sets of lone electron pairs. What is the molecular...
4. (12 pts) Determine the structure of the compound with a molecular formula of C9H XO,...
4. (12 pts) Determine the structure of the compound with a molecular formula of C9H XO, that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify "X" MS: M = 184 m/z, M+2 -186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 'H NMR نر 5 3 9 8 7 6 5 4 3 PPM Signal...
4.(12 pts) Determine the structure of the compound with a molecular formula of CsH,XO, that is...
4.(12 pts) Determine the structure of the compound with a molecular formula of CsH,XO, that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify "X." MS: M = 184 m/z, M+2 = 186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 'H NMR 3 ul 7 6 5 2 PPM Signal Shift (ppm) Integration Multiplicity Identity...
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca...
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca = 3, P = 1,0 = 4 B) Ca 3, P = 2, O = 4 C) Ca = 3, P = 2,0=8 D) Ca = 3, P = 1,0 = 8 E) none of the above le Ol be 20) What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms? A) O10P4 B) 100P4 C) 4P010...
4.(12 pts) Determine the structure of the compound with a molecular formula of C,H,XO2 that is...
4.(12 pts) Determine the structure of the compound with a molecular formula of C,H,XO2 that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify “X.” MS: M* = 184 m/z, M+2 = 186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 1H NMR 3 9 8 5 4 3 2 PPM Signal Shift (ppm) Integration Multiplicity...
provide the molecular formula of skeletal structure Question 4 2 pts Which of the following molecules...
provide the molecular formula of skeletal structure
Question 4 2 pts Which of the following molecules is the strongest acid? O lactic acid (pKa 3.9) O acetic acid (pKa 4.8) O ethanol (pKa 15.9) O ammonia (pKa 37)
14. (3 pts) The following molecule has a molecular formula of CeH5N304. Determine the index of...
14. (3 pts) The following molecule has a molecular formula of CeH5N304. Determine the index of hydrogen deficiency (IHD) for the compound. Using the molecular formula, IHD, IR, H NMR, and 13C NMR, determine the structure for the compound. Hint: this molecule is part of the practical (product, reagent, solvent, etc). IR: TH NMR: 13C NMR 16 14 12 10 8 160 140 120 80 60 40 20 200 180 COS-11-540 100 om HSF-6-eag ppm IHD = Structure: Page 7...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an unknown substance. a The hallucinogenic drug LSD has the molecular formula C20HasN30. If the molecular mass of LSD is 323.43 g/mol, what is its mass percent 0? b. Campus security finds an unknown sample that they suspect is LSD. The unknown sample contains 74.07% 7.95% H, and 9.99% N. by mass. Keeping in mind the law of conservation of mass, determine the mass percent...
2. Draw a structure with the molecular formula C7H10 that has
exactly two rings.
4. Give IUPAC names for the following structures
(a,b,c,d)
CHEM1014 Homework for Chapter 11 Due Friday, March 20, beginning of class There is not enough room to write the answers on this sheet. Use other sheets of paper for your answers. 1. Draw a structure with the molecular formula C,H, that has exactly one ring. Show all atoms and all bonds 2. Draw a structure with...
Question 4 1 pts What is the term for the actual yield compared to the theoretical yield expressed as a percent? O percent yield O actual yield O reaction yield O theoretical yield Question 5 2 pts Identify the expected products of heating baking soda, solid NaHCO3 Gaseous H20 O Solid Na Gaseous carbon dioxide, CO2 Aqueous carbonic acid, H2CO3 Gaseous O2 Solid sodium carbonate, Na2CO3 Question 1 1 pts In this experiment, how can you tell when the baking...
4. (12 pts) Determine the structure of the compound with a molecular formula of C9H XO, that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify "X" MS: M = 184 m/z, M+2 -186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 'H NMR نر 5 3 9 8 7 6 5 4 3 PPM Signal...
4.(12 pts) Determine the structure of the compound with a molecular formula of CsH,XO, that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify "X." MS: M = 184 m/z, M+2 = 186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 'H NMR 3 ul 7 6 5 2 PPM Signal Shift (ppm) Integration Multiplicity Identity...
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca = 3, P = 1,0 = 4 B) Ca 3, P = 2, O = 4 C) Ca = 3, P = 2,0=8 D) Ca = 3, P = 1,0 = 8 E) none of the above le Ol be 20) What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms? A) O10P4 B) 100P4 C) 4P010...
4.(12 pts) Determine the structure of the compound with a molecular formula of C,H,XO2 that is consistent with the data given below. (Hint: Use the provided table to organize your 'H data.) For full credit, be sure to identify “X.” MS: M* = 184 m/z, M+2 = 186 m/z; peaks have relative intensities of 3:1 IR (cm-1): significant peaks observed at 2920, 1726, 1600, 1480 1H NMR 3 9 8 5 4 3 2 PPM Signal Shift (ppm) Integration Multiplicity...
provide the molecular formula of skeletal structure
Question 4 2 pts Which of the following molecules is the strongest acid? O lactic acid (pKa 3.9) O acetic acid (pKa 4.8) O ethanol (pKa 15.9) O ammonia (pKa 37)
14. (3 pts) The following molecule has a molecular formula of CeH5N304. Determine the index of hydrogen deficiency (IHD) for the compound. Using the molecular formula, IHD, IR, H NMR, and 13C NMR, determine the structure for the compound. Hint: this molecule is part of the practical (product, reagent, solvent, etc). IR: TH NMR: 13C NMR 16 14 12 10 8 160 140 120 80 60 40 20 200 180 COS-11-540 100 om HSF-6-eag ppm IHD = Structure: Page 7...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an unknown substance. a The hallucinogenic drug LSD has the molecular formula C20HasN30. If the molecular mass of LSD is 323.43 g/mol, what is its mass percent 0? b. Campus security finds an unknown sample that they suspect is LSD. The unknown sample contains 74.07% 7.95% H, and 9.99% N. by mass. Keeping in mind the law of conservation of mass, determine the mass percent...
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