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n-pentane and 1-butanol

162 results

Chemistry
Two liquids, n-pentane and 1-butanol, have nearly the same molecular weight, but significantly different temperature values. Why is there a difference between these two substances, based on their intermolecular forces? temperature values? Do you mean boiling points? We are ...

Chemistry
Which alcohol has the strongest intermolecular force of attraction? The weakest? Explain. A. 1-Propanol B. 1-Butanol C. n-pentane D. n-hexane E. methanol F. ethanol We shall be happy to critique your thinking. Hint: look at the hydrogen bonding from the alcohols (and hydrogen ...

Chemistry
what are the intermolecular forces present in: 1. n-propyl alcohol 2. n-butanol 3. 2-butanol 4. tert-butanol alcohol 5. pentane 6. hexanes I know that the forces include- dipole-dipole, ion-dipole, dispersion, and hydrogen bonding...but I don't know how to pick which one is ...

Science
Explain why pentane has a significantly higher vapor pressure than 1-butanol?

chem
a simple hwk question.. i don't understand what i need to do.. 1-butanol (shown below) burns in the presence of oxygen to give off carbon dioxide and water by the following reaction: C4H9OH + 6 O2 ==> 4 CO2 + 5 H2O If 40.88 mL of 1-butanol burns completely, how many grams ...

Organic Chemistry
I just want to check if I am correct on this Q: What is the major product formed when 1-butene reacts with water in the presence of dilute sulphuric acid? a) 1-butanol b) 2-butanol c) butane d) 1-methylpropanol I "think" that it "should" be "B" (2-butanol)???

chem hwk
a simple hwk question.. i don't understand what i need to do.. 1-butanol (shown below) burns in the presence of oxygen to give off carbon dioxide and water by the following reaction: C4H9OH + 6 O2 ==> 4 CO2 + 5 H2O If 40.88 mL of 1-butanol burns completely, how many grams ...

college chemistry
Pentane, C5H12, and hexane, C6H14, combine to form an ideal solution. At 25⁰C the vapor pressure of pentane is 511 torr and that of hexane is 150 torr. In the vapor over a pentane-hexane solution at 25⁰C, the mole fraction of pentane is 0.15. What is the mole ...

chemistry
1-butanol (shown below) burns in the presence of oxygen to give off carbon dioxide and water by the following reaction: C4H9OH + 6 O2 ==> 4 CO2 + 5 H2O If 40.88 mL of 1-butanol burns completely, how many grams of 1-butanol have burned? grams =33.1 bu then Now, How many ...

Chemistry
Pentane is a small liquid hydrocarbon, between propane and gasoline in size C5H12. The density of pentane is 0.626g/ml and its enthalpy of combustion is ΔHcomb =-3535kj/mol. Estimate the fuel valve and the fuel density of pentane.

chemistry
n-pentane and 1-butanol have nearly the same molecular weights but significantly different change in temperature values. explain the difference in change in temperature values of these substances based on their intermolecular forces.

Organic Chemistry
What observed rotation is expected when a 1.44 M solution of (R)-2-butanol is mixed with an equal volume of a 0.720 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? The specific rotation of (R)-2-butanol is –13....

chemistry
What is the molar mass of pentane if 4.18 ~ 1016 molecules of pentane weigh 5.00 ƒÊg?

Science
Predict change in temperature for 1-butanol, CHSCH2CH2CH2OH, if same experiment were using 1-butanol?

Chemistry
if the density of 2-butanol is 0.80g ml-1, what volume of 2-butanol would be produced from 1kg of butene

chemistry
At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr. What is the mole fraction of pentane in a pentane-hexane solution that has a vapour pressure of 333 torr at 25°C?

chemistry
Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25oC the vapor pressures of pentane and hexane are 511 and 150 torr, respectively. A solution is prepared by mixing 25 mL pentane (density, 0.63 g/mL) with 45 mL hexane (density, 0.66 g/mL). What is the vapor ...

Chemistry - University
Pentane (C5H12) and hexane (C6H14) form an ideal solution. The vapour pressure of pentane at 25oC is 511 mmHg and that for hexane is 150 mmHg. A solution is prepared by mixing pentane (density = 0.63 g/mL) and hexane (density = 0.66 g/mL). The mole fraction of hexane in the ...

chemistry
How could you prepare: a ) 2-chloropropane from 2-propanol? b) 2-butanone from 2-butanol? c) ethyl acetate CH3COOC2H5 from ethanol? d) 2-methyl-2-butene from 3-methyl-2-butanol?

physics
Again, I know I keep posting questions but I'm begging you for help. At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr. What is the mole fraction of pentane in a pentane-hexane solution that has a vapour pressure of 339 torr at 25°C? ...

Chemistry
the solubility of 1-butanol in water is 7.9g per 100g of water. What is the maximum amount of 1-butanol that will dissolve in 5.9g of water

Chem
Which one has an optical isomer? butryic acid t-butanol 2-bromo-2-methylbutane 2-amino-2-methyl-butal-1-ol I know it's not t-butanol or 2-bromo-2-methylbutane. Is it 2-amino-2-methyl-butal-1-ol? Correction to above: 2-amino-2-methyl-butan-1-ol (Butan is with an "n" not "l" IF ...

chemistry
The reaction of sec-butylmagnesium bromide with formaldehyde followed by hydrolysis yields? 2,2-dimethyl-1-pentanol 2-butanol 2-methyl-1-butanol 2-pentanol 2,2-dimethyl-1-propanol

Science: Chemistry
Pentane (C5H12) burns in oxygen to produce carbon dioxide and water. C5H12(g)+8O2(g)→5CO2(g)+6H2O(g) Calculate the mass of CO2 that can be produced if the reaction of 38.5 g of pentane and sufficient oxygen has a 58.0 % yield.

chemistry HMWK help.......
you decide to have a BBQ in your backyard. you have 1Kg of pentane (C5H12) in the tank. What is the amount of carbon dioxide (in mass and mols) you will be contributing to the greenhouse gas effect by using up that 1Kg of pentane? plz.... need the answer with steps...thank you

chemistry
Name the following compounds (with absolute configurations) and are they enantiomers, diastereomers or structure isomers or no relation at all? img34.imageshack.us/i/namethese.jpg/ i think they are disteromers and their names are 1] 1S, 2S - (2-bromo - 3,4 - dimethyl pentane) ...

chemistry
From the following combustion: 1-butanol + oxygen = carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? Please help me! I have not a clue! Thanks so much!

chemistry
Write the condensed structural formulas for the following alcohols."" Correct the incorrect names."" 4-methyl-1-pentanol 2-methyl-2-butanol 3-ethyl-1-butanol 2, 2-diethyl-4-pentanol 3-ethyl -2-hexanol IS THERE ANY WRONG NAMES??

chemistry
While researching energy values of fuels, a chemist designed an experiment to find out the heat of combustion of pentane. Using the known hexane heat of combustion of hexane = 4650kJ/mol and the data below calculate the heat of combustion of pentane. Set up= copper beaker 42....

chemistry
While researching energy values of fuels, a chemist designed an experiment to find out the heat of combustion of pentane. Using the known hexane heat of combustion of hexane = 4650kJ/mol and the data below calculate the heat of combustion of pentane. Set up= copper beaker 42....

Chemistry
Diethyl ether has a boiling point of 34.5C, and 1-butanol has a boiling point of 117C. Both of these compounds have the same numbers and types of atoms. Explain the difference in their boiling points. The answer I found was that: only 1-butanol can form hydrogen bonds. But I ...

Chem
A sample of 2-butanol has a specific rotation of 3.25. Determine the % ee and molecular composition of this sample. The sepcific rotation of pure (+)-2-butanol is +13.0. is it (3.25/13.0)x100%= 25%... i'm a little confused on the molecular composition though.

organic chemistry
A sample of 2-butanol has a specific rotation of -9.75 degrees. Determine the % ee (enantiomeric excess) and the molecular composition of this sample. The specific rotation of pure (+)-2-butanol is +13.0 degrees.

chemistry HMWK help....... REPOST
you decide to have a BBQ in your backyard. you have 1Kg of pentane (C5H12) in the tank. What is the amount of carbon dioxide (in mass and mols) you will be contributing to the greenhouse gas effect by using up that 1Kg of pentane? plz.... need the answer with steps...thank you...

chem
balance 1-butanol + oxygen=carbon dioxide+water how many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completly burned?

college chemistry
An electrical heater is used to add 19.50 kJ of heat to a constant-volume calorimeter. The temperature of the calorimeter increases by 4.50°C. When 1.75 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 14.58°C. Calculate the molar heat of...

science(chemistry)
I have a question about TLC plate solvents. What solvents will leave stains on a plate with a TLC plate out of the ones below and why?) (n-Octane, n-Hexane, Decane, Acetone, 1-Propanol, 2-Propanol, Ethanol, Toluene, Cyclohexane, Methanol, n-Heptane, n-Pentane, Butanol) I saw 2...

Chemistry
A sample of 2-methyl-1-butanol has a specific rotation of -3.25°. Pure (R)-2-methyl-1-butanol has a specific rotation of +5.75°. Determine the %ee and molecular composition of the sample.

Science
Is the molar enthalpy of combustion of pentane the same as the molar enthalpy of formation of pentane? No. The molar enthalpy for the combustion is for the reacton C5H10 + (15/2)O2 ==> 5CO2 + 5H2O The molar enthalpy for the formaton is 5C(graphite) + 5H2(g) ==> C5H10(l) ...

Chemistry
For gaseous n-pentane and isopentane, both at 298K, ΔGf°=−194.4kJ/mol and−200.8kJ/mol, respectively. The vapor pressures of the liquids are given by: n-pentane:log10P(atm)=3.9714−1065/T−41 isopentane:log10P(atm)=3.9089−1020/T−40 Calculate (a) KP for the ...

chemistry
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 252 torr . Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. What is the mole fraction of hexane? (Assume ideal...

Chemistry
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 235 torr. Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. What is the mole fraction composition of the mixture?

mole fraction
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 241 torr. Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. What is the mole fraction of hexane? (Assume ideal ...

O CHEM - dr. bob
1. What is the maximum volume (at STP) of the butene mixture that could be obtained by the dehydration of 81 mg of 2-butanol? 2. When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has been formed? Responses...

Organic Chemistry- help Dr. Bob
1. What is the maximum volume (at STP) of the butene mixture that could be obtained by the dehydration of 81 mg of 2-butanol? 2. When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has been formed? Responses...

Chemistry, Please HELP!
What are the names of the seven isomers of C4H10O? A = t-butyl alcohol (2-methyl-2-propanol) B = sec-butyl alcohol (2-butanol) C = butyl alcohol (1-butanol) D = isobutyl alcohol (2-methyl-1-propanol) Other constitutional isomers are ethers: diethyl ether methyl propyl ether ...

Org. Chem.
Explain these results by considering the polarities of the alcohols and water. - 1-octanol is insoluble in water - 1-butanol is partially soluble in water Explain in terms of polarities for: - 1-octanol is soluble in hexane - 1-butanol is soluble in hexane - methyl alcohol is ...

chemistry
These are short and simple. :) I've included my answers, tell me if I am wrong please. CH3 is attached to a carbon on a pentane ring. Is the hybridization of the carbon sp3? NH connects a benzene ring to two benzene rings. Is the hybridization of the nitrogen sp2? OH is ...

chemistry
These are short and simple. :) I've included my answers, tell me if I am wrong please. CH3 is attached to a carbon on a pentane ring. Is the hybridization of the carbon sp3? NH connects a benzene ring to two benzene rings. Is the hybridization of the nitrogen sp2? OH is ...

Chemistry
Name the compounds CH3CH2CHCH2CH3 - Is this 3-Pentane? Thanks

CHEMISTY
WHICH HAS THE HIGHER BOILING POINT PENTANE OR HEPTANE

Organic chemistry
what is the line structure for 2-butanol?

Organic chemistry
2- butanol + 2-pentanoic acid

chemisty
how do you convert 50 microliters of 2 butanol to moles?

Chemistry
A 0.3423 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.000 kg of water contained therein rose from 20.22°C to 22.82°C. The heat capacity of the calorimeter is 2.21 kJ/°C. The heat capacity of water = 4.184 J/g·°...

chemistry
name an isomer of pentane (that is not cyclic)and write down its structure

Chemistry
Name an isomer of pentane (that is not cyclic) and write down its structure.

Chemistry
Name an isomer of pentane (that is not cyclic) and write down its structure.

ap chemistry
pentane is burned completely in oxygen gas. what is the balanced equation?

CHEM (HELP PLS)
Suggest the syntheses of cadaverine (pentane-1,5-diamine) from 1,5-Dibromopentane

chemsitry
you start with 150.0g of pentane and 500.0L of O2. how many grams of H2O will you make?

chemistry
what are the structures and iupac names of the isomers of 2-butanol.

Science
Give the condensed structural formula for 1-butanol

Chemistry
If 84 g of CO2 were produced, how many grams of butanol were burned?

Chemistry
Will 1-propanol and 1-butanol form an ideal solution?

chemistry
what is the stereochemical formula for water, pentane, ethanol, acetone, and methanol. please help!

Chemistry
Skeletal structural formulas of pentane,2 methyl butane and 2,2 dimethyl propane

chemistry
which liquids are effected by an electric field and why 1-chloropropane, pentane, tetrachloromethane, cyclopentane

O-CHEM (PLEASE CHECK)
How many stereoisomers are there for 1,2-dichlorocyclopentane?: a) 1 b) 2 c) 3 d) 4 answer: "B" (2)??? or: "D" (4)??? How many stereoisomers are possible for: cortisone acetate?: a) 32 b) 64 c) 128 d) 256 answer: "B" (64)??? How many stereoisomers are possible for Prilosec?: a...

CHEMISTRY
WHAT IS THE COST PER KJ TO PRODUCE METHANOL, ETHANOL, PARIFFIN, PROPANOL,AND BUTANOL?

Chemistry
Predict the product(s) and write a balanced equation for the following redox reaction: pentane (C5H12) + oxygen ---->

Chemistry
Which compound in each pair would you expect to be more soluble in water? dibutyl ether or 1-butanol Why?

Chem
What are the organic side reactions and products that can occur when 1-butanol is treated with NaBr and H2SO4? Any help would be great, thanks.

organic chem
Name the ester obtained when the alcohol is reacted with 2-ethylpentanoic acid? 1. 2 -propanol 2. 2-butanol 3, phenol

Chemistry
How many kcal of heat energy are required or released when 1.73 moles of butanol , C4H9OH, is warmed from -175.8 degrees F to 360.9 degrees F? The following information concerning butanol applies: normal melting point: 12.5 degrees C normal boiling point: 162.8 degrees C Cp (s...

chem
If pentane,hexane and hexanol are heated evenly at different altitudes, rank them according to the order in which you would expect them to begin boiling.

AP Chemistry
What is the change of enthalpy associated with the combustion of one mole of pentane? C5H12 + 8O2 ¨ 5CO2 + 6H2O I'm very confused, Please help!

Organic Chem
what is the equation including the mechanism for the reaction of 1-butanol with NaCl+ NaBr in H2S04 What are the equations for the side reactions?

Chemistry
When secondary alcohol oxidized it produces alkanes. Draw the structure of 2,2 dimethyl 3-butanol + oxygen and give the names for it.

chemistry
how many grams of oxygen is needed to burn 500 grams of pentane?

Science
What kind of carbon-carbon bonds are found in alkane molecules? Is the answer Pentane

chem
If 34.1 grams of pentane (C5H12) are burned in excess oxygen, how many grams of H2O will be produced?

chemistry
Reaction with Felings solution,if adding 2-butanol to potassium dichromate, in this experiment what spiecfic organic product would be form and structure.

Chemistry
Please help Butanol's structural formula is C4H10, why? [Methanol?Ethanol?Pentanol?) Pentan-1-ol exists as several different isomers. I don't know how to draw them.

chemistry
which of the following chemical substances would you expect to exhibit the greatest degree of hydrogen bonding? A. ethanol B.propanol C. methanol D. butanol

Org. Chem.
are 1-octanol and 1-butanol polar or nonpolar? I think slightly polar?

Organic Chemistry 1
write a step-by-step mechanism for the reaction of 1-butanol with sodium bromide and sulfuric acid.

science
Give the condensed structural formula for 1-butanol. (Type your answer using the format CO2 for CO2.)

chemistry
From the following combustion: 1-butanol + oxygen+ carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? I wrote out the equation and got C4H10) + 02= CO2 + H2O. i balanced the equation and got ...

chemistry
which pair(s) of liquids will be miscible ? H2O AND CH3CH2CH2CH2CH3(PENTANE) C6H6 (BENZENE) AND CCl4(CHLOROFORM) C2H5OH (ETHANOL) AND CH3COOH(ACETIC ACID) how do you know if they are miscible?

chemistry
2-Methyl-2-propanol (tert-butanol) reacts to give 2-chloro-2-methylpropane (tertbutyl chloride) and 2-methyl-1-propene. The reaction mechanisms are:

chem
Hers's a question im not sure how to do Write a mechanism for the acid-catalyzed transesterification reaction of ethyl acetate with 1-butanol, which gives butyl acetate. Thank you soo much!!!!!!!!!!!!!!!!!!!!!!

chem
Arrange the following compounds in order of increasing boiling point. butanal 1-butanol diethylamine tartaric acid butane butanoic acid and can you please explain why?

chemistry
molar enthalpy of combustion for pentane? Mass C5H12= 2.15g Mass H2O= 1.24kg Initial temp= 18.4°C Final temp= 37.6°C

Organic Chemistry
Water/methanol and water/acetone are viable solvent systems for recrystallization,but water/chloroform and water/pentane are not. Briefly explain in 1-2 sentences.

Ferdinand Marcos University
What are the condensed structure of each of the following: a.)2-pentene b.)1chloro 3 metyl 2 -pentene c.)3 methyl 1 butyne d.)2,3dimethyl pentane e.)2 ethyl 1 methyl hexane

Chemistry Lab
we reacted acetic acid with butanol and formed butyl acetate which is supposed to smell like banana but it smelled like sharpie/nail polish remover why might this be

O Chem
1. What is the maximum volume (at STP) of the butene mixture that could be obtained by the dehydration of 81 mg of 2-butanol? 2. When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has been formed?

LAB!!
I have to find the molar enthalpy of combustion of pentane. I have this info: 5C(s) + 6H2 >>> C5H12 Hf= -173.5kJ C+O2>>> CO2 Hf= -393.5kJ H2 + 1/2O2 >>> H2O Hf= -241.8kJ H2O >>> H2O Hf= +44.0kJ THEN I am given this: mass of pentane= 2.15g ...

organic chem
Classify as primary, secondary, tertiary alcohols. i. 2-butanol ii. 3-methyl-3-pentanol iii. 2-methyl-1-pentanol iv. 3-chlorocyclohexanol

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