Homework Answers
Question 6.
The N2Cl4 molecular compound is known as
Dinitrogen tetrachloride
Here 2 nitrogen atoms attached with 4 chlorine atoms so name is dinitrogen tetrachloride.
Question 5
What is CH4
Molecule and Compound.
A molecule is the smallest part where all the atoms are in single unit held together by chemical bond. CH4 is compound because it contains more than one element. All compounds are molecules but single atomic molecules like O2, H2 are not compounds.
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QUESTION 6 The N2CL4 molecular compound is known as trinitrogen pentachloride tetrachloride dinitrogren el pentachloride trinitrogen...
For the molecular compound carbon tetrachloride, what would you multiply "grams of CCI," by to get...
For the molecular compound carbon tetrachloride, what would you multiply "grams of CCI," by to get the units "moles of CCI," ? grams CCIA -= moles CC14 Drag and drop your selection from the following list to complete the answer: 153.81 moles CCl4 1 gram CCl4 1 mole CC14 153.81 grams CC14 For the molecular compound carbon tetrachloride, what would you multiply "molecules of CCI," by to get the units "moles of CCI." ? molecules CCIA -= moles CC14 Drag...
Question 8 of 12 > What is the molecular formula of a compound with the empirical...
Question 8 of 12 > What is the molecular formula of a compound with the empirical formula BBr, and a formula mass of 341.24 amu? molecular formula What is the molecular formula of a compound with the empirical formula CH,O and a formula mass of 180.156 amu? molecular formula:
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the...
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
3) A compound that is composed of only carbon and hydrogen is known as a(n): A)...
3) A compound that is composed of only carbon and hydrogen is known as a(n): A) hydrocarbon B) isomer C) homolog D) carbohydrate 4) How many chiral carbon atoms are in this molecule? Он A) 0 B) 1 C) 3 D) 2 5) The compound CH3(CH2)4CH3 is called: A) heptane B) butane C) pentane D) hexane 6) What functional groups are present in the following structure? СHз-с"с-СH2ОН A) A ketone and an alkyne An aldehyde and a ketone B) An...
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known...
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known to consists of molecules having five carbon atoms. If the density of this hydrocarbon gas at STP conditions is 3.2215 grams/liter, what is the molecular formula for this compound?
6. The following is a 'H-NMR spectrum for compound BB with the molecular formula CyH1402. Which...
6. The following is a 'H-NMR spectrum for compound BB with the molecular formula CyH1402. Which structure matches the 'H-NMR spectrum? (300 MHZ.CDC) doublet CH,40, Compound BB triplet triplet 24 2.1 multiple - sexdat Chemical Shift (6) 0 = 7. What is the relationship between these two molecules? ОН and HO a) Same molecule b) Enantiomers c) Diasteromers d) Constitutional Isomers 8. The R-enantiomer rotates light clockwise +20º and the Senantiomer rotates light counterclockwise -20°. If a mixture of the...
Fig.2: Sample models Table 1. Molecular compound information Compound Number Compound Name Molecular Formula Connectivity (no...
Fig.2: Sample models Table 1. Molecular compound information Compound Number Compound Name Molecular Formula Connectivity (no information blank) 1 07 2 Oxygen gas or Dioxide Carbon dioxide Fluoromethane 3 CO CHF 4 CF4 5 Tetrafluoromethane or Carbon tetrafluoride Ammonia or Nitrogen trihydride Formaldehyde Carbon monoxide 6 NH, CH,0 CO Obonded to Conly 7 8 HCN 9 Hydrogen cyanide Ethyl alcohol or Ethanol Dimethyl ether CHO сано c.c.o c.o.c 10 Table 2: Data 1. Lewis Dot Structure VA
Question 5 (5 points) Which statement is false? 18 An example of a molecular element is...
Question 5 (5 points) Which statement is false? 18 An example of a molecular element is ozone (03). An example of an lonic compound is calcium oxide (Cao) An example of a molecular compound is ethyl amine (CH3CH2NH2) An example of an atomic element is platinum (P) All of these statements are true 21 24
6. The 'H NMR spectrum of a compound with the molecular formula CsH.CIO, is shown below....
6. The 'H NMR spectrum of a compound with the molecular formula CsH.CIO, is shown below. Note: To clearly assess the splitting of each signal, refer to the insets that are provided. (10 points) 445 44 60 620 415 (a) Calculate the number of degrees of unsaturation for this molecule (2 points) (b) What is the structure of this compound? To receive full credit, completely annotate the above spectrum by assigning each signal to the corresponding proton(s) in your proposed...
6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar...
6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 78. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product carbon dioxide mass 22.01 g water 4.50 g Use this information to find the molecular formula of X, x 6 ?
For the molecular compound carbon tetrachloride, what would you multiply "grams of CCI," by to get the units "moles of CCI," ? grams CCIA -= moles CC14 Drag and drop your selection from the following list to complete the answer: 153.81 moles CCl4 1 gram CCl4 1 mole CC14 153.81 grams CC14 For the molecular compound carbon tetrachloride, what would you multiply "molecules of CCI," by to get the units "moles of CCI." ? molecules CCIA -= moles CC14 Drag...
Question 8 of 12 > What is the molecular formula of a compound with the empirical formula BBr, and a formula mass of 341.24 amu? molecular formula What is the molecular formula of a compound with the empirical formula CH,O and a formula mass of 180.156 amu? molecular formula:
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
3) A compound that is composed of only carbon and hydrogen is known as a(n): A) hydrocarbon B) isomer C) homolog D) carbohydrate 4) How many chiral carbon atoms are in this molecule? Он A) 0 B) 1 C) 3 D) 2 5) The compound CH3(CH2)4CH3 is called: A) heptane B) butane C) pentane D) hexane 6) What functional groups are present in the following structure? СHз-с"с-СH2ОН A) A ketone and an alkyne An aldehyde and a ketone B) An...
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known to consists of molecules having five carbon atoms. If the density of this hydrocarbon gas at STP conditions is 3.2215 grams/liter, what is the molecular formula for this compound?
6. The following is a 'H-NMR spectrum for compound BB with the molecular formula CyH1402. Which structure matches the 'H-NMR spectrum? (300 MHZ.CDC) doublet CH,40, Compound BB triplet triplet 24 2.1 multiple - sexdat Chemical Shift (6) 0 = 7. What is the relationship between these two molecules? ОН and HO a) Same molecule b) Enantiomers c) Diasteromers d) Constitutional Isomers 8. The R-enantiomer rotates light clockwise +20º and the Senantiomer rotates light counterclockwise -20°. If a mixture of the...
Fig.2: Sample models Table 1. Molecular compound information Compound Number Compound Name Molecular Formula Connectivity (no information blank) 1 07 2 Oxygen gas or Dioxide Carbon dioxide Fluoromethane 3 CO CHF 4 CF4 5 Tetrafluoromethane or Carbon tetrafluoride Ammonia or Nitrogen trihydride Formaldehyde Carbon monoxide 6 NH, CH,0 CO Obonded to Conly 7 8 HCN 9 Hydrogen cyanide Ethyl alcohol or Ethanol Dimethyl ether CHO сано c.c.o c.o.c 10 Table 2: Data 1. Lewis Dot Structure VA
Question 5 (5 points) Which statement is false? 18 An example of a molecular element is ozone (03). An example of an lonic compound is calcium oxide (Cao) An example of a molecular compound is ethyl amine (CH3CH2NH2) An example of an atomic element is platinum (P) All of these statements are true 21 24
6. The 'H NMR spectrum of a compound with the molecular formula CsH.CIO, is shown below. Note: To clearly assess the splitting of each signal, refer to the insets that are provided. (10 points) 445 44 60 620 415 (a) Calculate the number of degrees of unsaturation for this molecule (2 points) (b) What is the structure of this compound? To receive full credit, completely annotate the above spectrum by assigning each signal to the corresponding proton(s) in your proposed...
6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 78. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product carbon dioxide mass 22.01 g water 4.50 g Use this information to find the molecular formula of X, x 6 ?
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