# Could anybody help me with this question "In practice the methanol production process is operated at temperatures of 250 to 300 degrees and at a pressure of 50 to 100 atmosphere (50 to 100 times normal atmospheric pressure) in the

39,819 results
1. ## Chemistry

Calculate the molality of methanol in a solution prepared by dissolving 75.0 mL of methanol, CH3OH (d = 0.791 g/mL), in 150 g of ethanol, C2H5OH.

2. ## Statistics

I'm stuck on this homework question. If someone can just help get me started with the first one I'm sure I can do the rest. I'm just not sure how to begin. Thanks! 1. A production process produces 90% non-defective parts. A sample of 10 parts from the

3. ## chem h

Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2H2(g) ==> CH3OH(g) a) How many moles of each reactant are needed to produce 3.60 x 10^2 g

4. ## Chemistry

Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2H2(g) ==> CH3OH(g) a) How many moles of each reactant are needed to produce 3.60 x 10^2 g

5. ## chemistry

b. Methanol, CH3OH, which can be used as a fuel, can be formed by the reaction between carbon monoxide and hydrogen as depicted in the following balanced equation. 2H2 + CO ¨ CH3OH Suppose 356 g of CO and 65 g of H2 are mixed and allowed to react. (i)

6. ## Chem

A solution is made by mixing 50.0 g C3H6O and 50.0 g of CH3OH. What is the vapor pressure of this solution at 25 degrees C? What is the composition of the vapor expressed as a mole fraction? Assume ideal solution and gas behavior. (At 25 degrees C the

7. ## Chemistry (Le Chatelier's Principal)

Methanol has the formula CH3OH and can be produced by the reaction of carbon monoxide with hydrogen gas. CO + 2 H2 ￼￼ ￼CH3OH + heat In an attempt to maximize the yield of methanol (amount of methanol produced), a chemist would try to shift the

8. ## AP Chemistry

The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 642.3 torr at 64.7°C. What is the mole fraction of methanol in this solution?

9. ## chemistry

a student determines the molar mass of methanol by the method used in this experiment. she found that the equilibrium temperature of a mixture of ice and pure water was .4 degrees Celsius on her thermometer. when she added 10g of her sample to the mixture,

10. ## Science

The density of acetonitrile, CH3CN, is 0.786 g/mL, and the density of methanol, CH3OH, is 0.791 g/mL. A solution is made by dissolving 15.0 g of methanol in 250.0 mL of acetonitrile. Assuming that the volumes of the solute and solvent are additive, what is

11. ## Physics

an electrical appliance take 5A when operated on a 220V supply. If the appliance is operated from 6am - 6am at 10kobo per KWh how much will d nepa officer collect?

12. ## Accounting

Solex Company produces a high-quality insulation material that passes through two production processes. Data for June for the first process follow: Required: 1. Assume that the company uses the weighted-average method of accounting for units and costs.

13. ## chemistry

Methanol CH3Oh can be produced by reacting carbon monoxide and hydrogen gas in the presence of a catalyst. If 75.00 grams of carbon monoxide reacts with 106.3 grams of hydrogen, 68.40 grams of methanol are produced. What is the percent yield of methanol?

14. ## accounting

Multiple choice 1. The type of product costing system used by a company is dictated by the : a) plant supervisor b) project manager c) company president d) production process 2. Activity based costing traces production costs to a) activities within the

15. ## Accounting for Managers

Question 11 of 20 5.0 Points Which of the following accurately describes a difference between job order and process costing systems? A. In job order costing systems, overhead costs are treated as product costs, whereas in process costing systems, overhead

16. ## Accounting

During the period, labor costs incurred on account amounted to \$250,000 including \$200,000 for production orders and \$50,000 for general factory use. In addition, factory overhead applied to production was \$23,000. From the following, select the entry to

17. ## chemistry

How many grams of methanol, CH3OH, are there in 150.0 mL of a 0.30 M aqueous solution of methanol

18. ## college

Liver alcohol dehydrogenase (ADH) is a nonspecific enzyme. Its normal substrate is ethanol but it will oxidize other primary alcohols like methanol. Methanol produces formaldehyde which is quite toxic and can lead to blindness. A dog ingested about 36 ml

19. ## quantitative methods for business

El Computer produces its multimedia notebook computer on a production line that has an annual capacity of 16,000 units. The cost to set up the production line is \$2345, and the annual holding cost is \$20 per unit. Current practice calls for production runs

20. ## chemistry

Carbon monoxide gas and hydrogen gas react to form methanol vapour: CO(g)+2H_2(g)->CH_3OH(g) 1.50*10^4 tonnes of carbon monoxide and the stoichiometric amount of hydrogen are reacted to form methanol at 250 deg. celsius and 10 MPa a) Calculate the

21. ## chemistry

The density of acetonitrile, CH3CN, is 0.786 g/mL, and the density of methanol, CH3OH, is 0.791 g/mL. A solution is made by dissolving 15.0 g of methanol in 250.0 mL of acetonitrile. Assuming that the volumes of the solute and solvent are additive, what is

22. ## Chemistry

The enthalpy of fusion of methanol (CH3OH) is 3.16 KJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?

23. ## statistic

The variance in a production process is an important measure of the quality of the process. A large variance often signals an opportunity for improvement in the process by finding ways to reduce the process variance. Conduct a statistical test to determine

24. ## Thermodynamics

An insulated rigid tank contains 1.5 kg of helium at 30∘C and 500 kPa. A paddle wheel with a power rating of 0.1 kW is operated within the tank for 30 minutes. Cvof helium = 3.12 KJ/Kg.K Problem 7A. Calculate the net work done by helium, in kJ. Enter the

25. ## Chemistry

What is the mole fraction of methanol CH3OH, in the vapor phase from a solution consisting of a mixture of methanol and propanol CH3CH2CH2OH at 40celsius, if the total pressure above the solution is 131 torr? The vapor pressures of methanol and propanolare

26. ## Chemistry

CO(g) + 2H_2(g) CH_3OH (g) deltaH=-90.7kJ Methanol is prepared industrially from synthesis gas (CO and H_2) Would the fraction of methanol obtained at equilibrium be increased by raising the temperature? Explain. Thank you :)

27. ## Finance

California Mining is evaluating the introduction of new ore production process. Two alternatives are available, Production Process A has an initial cost of \$25,000, a 4-year life, and a \$5,000 net salvage value, and the use of Process A will increase net

28. ## Chemistry

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation

29. ## chemistry

Methanol (CH3OH) is used in the production of many chemicals. Methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2 H2(g) CH3OH(g) (a) How many moles of each reactant are needed to produce 4.83 102 g CH3OH?

30. ## chemistry

the vapor pressure of ethanol at 20c is 44 mmHg and the vapor pressure of methanol at the same temperature is 94mmHg. A mixture of 30.0 g of methanol and 45.0 g of ethanol is prepared (and can be assumed to behave as an ideal solution). a.) calculate the

31. ## chemistry

methanol CH3OH is used as race car fuel write the balanced equation for the combustion of methanol. change in heat= -174kcal/mol methanol for the process How man kilocal are released u burning 33.0g of methanol

32. ## Biochemistry

Liver alcohol dehydrogenase (ADH) is a nonspecific enzyme. Its normal substrate is ethanol but it will oxidize other primary alcohols like methanol. Methanol produces formaldehyde which is quite toxic and can lead to blindness. A dog ingested about 36 ml

33. ## Chemistry

The density of methanol is .7918 g/ml/ How many grams of methanol do I have to add to 35.0ml of water to make a solution containing 25% methanol?

34. ## Finance

ABC Mining is evaluating the introduction of a new ore production process. Two alter¬natives are available. Production Process A has an initial cost of \$25,000, a 4-year life, and a \$5,000 net salvage value, and the use of Process A will increase net cash

35. ## chemistry

Salicyclic acid reacts with methanol to produce methylsalicyclate or winter green and water according to the following reaction: C7H6O3 (s) + CH3OH (l) --> C8H8O3 (s) + H2O (l) What mass methylsalicyclate can be produced from 15.00 grams of salcyclic acid?

36. ## chemistry (science)

What volume of methanol is formed if 2.86×10^11 of methane at standard atmospheric pressure and 25 degree celcius is oxidized to methanol? The density of CH3OH is 0.791g/mol . Assume that the oxidation of methane to methanol occurs in a 1:1 stoichiometry.

37. ## music

how can i get better at piano without a teacher? It's the same answer as the New Yorker responded to this question: "How do I get to Carnegie Hall?" The answer: "Practice, practice, practice."

38. ## S.S.

I am having trouble with question 16 16. The main impact of the invention of the cotton gin in 1793 was on A. the ability to process long-staple cotton. B. the ability to process short-staple cotton. C. cotton production in the Upper South. D. the cost of

39. ## Chemistry

What is the stronger base, OH^- or CH30^-? I've been told the answer is the conjugate base of methanol ion but i beg to differ. THe respective pKa's of water and methanol (the conjugate acids) are 15.7 and 15.5. This would imply that out of water and

40. ## chemistry

which process uses galvanic cell? A. lead storage B. refining of petroleum C. electrolysis of fused sodium chloride D. hall's process of production of aluminium

41. ## Science

How many milliliters of water at 20.0 °C are formed in the combustion of 25.0 g of a methanol–propanol mixture that is 62.5% methanol by mass? Assume there is an excess of oxygen available.

42. ## gemma

re s103 please could you help me on that question about methonal please please help im running out of time What question? Do you mean methanol? Please post your questions with the subject appropriately labeled, and not addressed to one person.

43. ## Math

Solve the following word problem for the portion, rate, or base. A quality control process finds 64.5 defects for every 8,600 units of production. What percent of the production is defective? Do not enter units or symbols in your answer. help please

44. ## Chemistry

In practice the methanol production process is operated at temps of 250-300c and at pressures of 50-100 atmospheres in the presence of a copper based catalyst. Are these operating conditions consistent with the aims of achieving a high equilibrium yield of

45. ## science

please help me with the following: The methanol production process is operated at 250 - 300 ºC & @ pressures of 50 - 100 atmospheres in the presence of a copperbased catalyst. Comment on whether these operating conditions, 250 - 300 ºC & 50 - 100

46. ## chemisrty

Could anybody help me with this question "In practice the methanol production process is operated at temperatures of 250 to 300 degrees and at a pressure of 50 to 100 atmosphere (50 to 100 times normal atmospheric pressure) in the presence of a copper

47. ## Chemisty

What is the heat change in J associated with 44 g of solid methanol at -149 oC changing to liquid at -83 oC? c(methanol) (liq) = 2.47 J/(g.K) c(methanol) (s) = 1.85 J/ (g.K) ÄHfus(methanol) = 3.17 kJ/mol The freezing point of methanol is -98 oC

48. ## chemistry

Methanol burns in oxygen to produce carbon (iv) oxide and water if 9 grams of methanol are used in the combustion process what mass of water is produced

49. ## Chem help please

What volume ( L ) of the solute methanol should be added with 4450 mL of the solvent water to make a solution that is 0.443 m methanol. i do not know how to approach this question

50. ## Chemistry

Methanol(MM=32.04g/mole) is sometimes used as fuel for race cars, since methanol fires are easily extinguished with water. the energy content o methanol is investigated in a high-quality calorimeter for which the heat capacity is known to be 4.5Kj/C. When

51. ## Chemistry

Could someone answer this question, i'd appreciate it. Im stuck on it The C-O-H bond angle is wider in methanol compared to water, and the C-O bond is longer then the OH bond in water due to: A) Steric clashing of methyl C-H's and hydroxyl H. B) Unshared

52. ## Chemistry

Could someone answer this question, i'd appreciate it. Im stuck on it The C-O-H bond angle is wider in methanol compared to water, and the C-O bond is longer then the OH bond in water due to: A) Steric clashing of methyl C-H's and hydroxyl H. B) Unshared

53. ## science (chemistry)

The % (by weight) of methanol in a mixturevof methanol and ethanol is50%.Therefore,the mole fraction of methanol in the mixture is

54. ## Chemistry

Methanol burns in oxygen to make carbon dioxide and water. The equation is exothermic, with 1452kJ/mol. of energy being released. (a)Write a balanced equation for the combustion of methanol. -methanol+oxygen=carbon dioxide+water -CH3OH+O2=CO2+H2O (how do

55. ## chemistry

a student dissolves 80 mg of a crude product in 4.5 mL( the minimum required) of methanol at 25 deg C . She cools the solution in an ice bath and obtains crystals. The crystals are recovered by filtration and rinsed with 0.5 mL of ice-cold methanol. After

56. ## Finance

ABC Mining is evaluating the introduction of a new ore production process. Two alter¬natives are available. Production Process A has an initial cost of \$25,000, a 4-year life, and a \$5,000 net salvage value, and the use of Process A will increase net cash

57. ## Finance

ABC Mining is evaluating the introduction of a new ore production process. Two alter¬natives are available. Production Process A has an initial cost of \$25,000, a 4-year life, and a \$5,000 net salvage value, and the use of Process A will increase net cash

58. ## college chemistry

what theoretical yield of formaldehyde (in grams) is expected from the reaction of 44.3 g of methanol? (Assume that methanol is the limiting reactant.) Look at my response to a stoichiometric problem one question below by Kyle. Post any specific questions

59. ## physics

A 140-W heater was placed in 2.00 kg of methanol and turned on for exactly 1 min. The temperature increased by 3.54°C. Assuming that all the heat is absorbed by the methanol, calculate the molar heat capacity of methanol.

60. ## chemistry

do hydrogen bonds form between methanol (CH3OH) molecules? no, because methanol does not contain fluorine or nitrogen atoms yes, because methanol has a hydrogen attached to an oxygen atom may vary depending on the temperature

61. ## chemistry

The vapor pressure of methanol is 84.0 mm Hg at 27.0°C. The ΔHvapor of methanol is 39.2 kJ/mol and R = 8.31 10-3 kJ/mol·K. Calculate the normal boiling point of methanol in Kelvin.

62. ## chemisrty

can anybody explain why and how a copper based catalyst helps in methonal production and the impact it would have on mass production many thanks A catalyst lowers the activitation energy needed for a reaction and allows reactants to produce more products

63. ## ACCOUnting

Chen Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2010 are as follows. Production Data-Basketballs Units Percent

64. ## Chemistry AP

At 20◦C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 35.5 torr at 20◦C. Calculate the mole fraction of methanol in this solution. Assume

65. ## chemistry

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation

66. ## cheistry - please help!

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation

67. ## CHEMISTRY

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation

68. ## Chemistry - please help!

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation

69. ## COM 135

Can anyone help me add more information to this? Changing a baby’s diaper can sometimes be very challenging. This manual will help glide you through the process after you practice, practice, and practice. Sometimes, even people with past-experience need

70. ## chemistry

The normal boiling point of methanol is 64.7oC. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 670.0 torr at 64.7oC. What is the mole fraction of methanol in this solution?

71. ## Chemistry

Methanol burns in oxygen to make carbon dioxide and water. The equation is exothermic, with 1452kJ/mol. of energy being released. methanol+oxygen=carbon dioxide+water 2CH3OH + 3O2 = 2CO2 + 4H2O -molar mass of methanol=32g/mol. Use the value to calculate

72. ## Biology quick please

I need a practice biology test to practice for my final exam which is tomorrow. I'm a tenth grader and the things we learned were mitosis, meiosis, production of gametes, human reproduction, cell devision, mendelian genetics, probablitity of inheriting

73. ## Science

The Haber-Bosch process, devised in the early 20th century, revolutionized global industry. It provides a way of “fixing” atmospheric nitrogen into ammonia, allowing for the production of fertilizers and the many nitrogen-based chemicals we use today.

74. ## Accounting

The Converting Department of Soft N' Dry Towel and Tissue Company had 920 units in work in process at the beginning of the period which were 75% complete During the period 16200 unis were completed and transferred to the Packing Department. There were 960

75. ## statistics

I have created my chart but am really confused on creating a Hypothesis and how to actually use the information obtained by my chart. The question is about the variance in a production process is an important measure of quality. A lrg var often signals an

76. ## chemistry

The solubility of acetanilide is 18.5 g in 100 mL of methanol at 0 °C, and 59.2 g in 100 mL of methanol at 60 °C. What is the maximum percent recovery that can be achieved for the recrystallization of acetanilide from methanol?

77. ## Capitalism

Hi. I would like to know what Capitalism is in simple terms. From Wikipedia, this is what it says: Capitalism is an economic system in which the means of production are privately owned and operated for profit. Could I get more information please.

78. ## mult choice / accounting

A department transferred 7,000 units to the finished goods storeroom during a month. There was no beginning work in process inventory, but 500 units were still in process at the end of the month. Equivalent production for the month was 7,400 units, and

79. ## chemistry

Methanol (CH3OH) is used in the production of many chemicals. Methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2 H2(g) CH3OH(g) (a) How many moles of each reactant are needed to produce 4.83 102 g CH3OH?

80. ## art

Explore the daguerreotype process at The Metropolitan Museum of Art website: In your opinion, what is the most significant difference between the daguerreotype process and modern photography? How do early and modern photos differ in the creative process of

81. ## Bioprocessing

A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type growth with a maximal specific growth rate of 0.4/h and an

82. ## Math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

83. ## Chemistry

I have this question and I am pretty sure on what to use to solve it but I am just stuck. The reaction of 8 g of hydrogen and 28 g of carbon monoxide gave 16 g of methanol. What was the theoretical yield if the percent yield was 50%? actual yield

84. ## math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

85. ## Math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

86. ## Mathematics

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

87. ## Chemistry AP

This isn't quite an HW question, I'm needing any site that gives practice Free Response problems for equilibrium for AP Chemistry if there are any for study and practice.

88. ## science

Energy due to an object's motion or position or conditio kinetic why does sugarless food cost more than food with sugar First, if you have a question, it is much better to put it in as a separate post rather than attaching it to a previous question, where

89. ## general chemistry

Methanol has a ΔHvap = 35.3 kJ/mol CH3OH. Calculate the change in heat, q, when 50.0 g methanol condenses? Caution! Is q + or -?

90. ## Chemistry

Please help me !! Frequently in the distillation of methanol and water, the methanol distillate appears cloudy. To what might you attribute such an observation? Thanks.

91. ## Geometry B: Unit 3: Similarity Lesson5 Practice

If you have done this please help me with just the practice question I have already done the quiz I just need help with the practice problems because they are in more detail.

92. ## chemistry

What volume ( L ) of the solute methanol should be mixed with 3.41 L of the solvent ethanol to make a solution that is 11.0 m methanol? Am I supposed to use the molality eq'n?

93. ## organic chemistry

The isolation process of aspirin was stopped after the filtration step with alumina and one week later the methanol was evaporated and the experiment was completed. The melting point of the aspirin was found to be 110-115 Celsius. explain why the

94. ## science

The enthalpy of combustion of methanol is -711 kJ/mole. What mass of methanol must be completely burned in oxygen to produce 71.1 kJ of energy?

95. ## Chemistry

Got another practice question but I'm really stumped on this one: If the [ZnCl4]^2- ion is diamagnetic what must its structure be and why - octahedral, tetrahedral or square planar? I know that diamagnetic means that all its electrons are paired and that

96. ## Chemisry

What is the % M/M concentration of 5.00 mL of methanol in 25 g solution of methanol in water? The density of methanol is 0.791 g/mL. The density of water is 1.000 g/mL. The density of the solution is 0.995 g/mL. Please show work, thank you!

97. ## economics

Typically, roads in Canada are built, maintained,and operated at public expense. recently, high way 407 north of Toronto was sold to a private firm, which now charges motorists a toll to use it, should more roads be privately owned and operated in this

98. ## Economics

I picked C as the answer to this question but I am not sure? The difference between production possibilities frontiers that are vowed out and those that are linear is that: A)bowed out production possibilities frontiers illustrate tradeoffs, whereas linear

99. ## Chemistry

Rate Law: Methanol and ethyl acetate react to form ester and glycerol. What is the order of reaction with respect to methanol and ethyl acetate, and what is the overall order of reactions? Please explain how to find if the answer is order 1 for methanol

100. ## Chemistry- Dr. Bob222

Methanol (CH3OH) is a colorless volatile liquid, formerly known as wood alcohol. It boils at 65.0 °C and has a heat of vaporization ΔHvap = 37.4 kJ/mol. What is methanol’s vapor pressure at 22.0 °C? My answer: 109.5 torr