# Suppose you are to prepare 1 liter of 70% ethyl alcohol.What is the ratio needed to prepare the solution?

30,759 results
1. ## KSU

Suppose you are to prepare 1 liter of 70% ethyl alcohol.What is the ratio needed to prepare the solution?
2. ## Chemistry

How would you prepare a 25.0% water in ethyl alcohol solution using 100.0 ml of ethyl alcohol (The density of ethyl alcohol is 0.7893 g/ml)
3. ## Chemistry

Ethyl alcohol which is prent in many beverages molecular formular C2H6O.If 9.2g of ethyl alcohol are available.Calculate number of molecular of ethyl alcohol 9.2g of ethyl alcohol.
4. ## chemistry

how many grams of ethyl alcohol are needed to produce 1 L of a 2 mM solution if 1 mole =46g of ethyl alcohol. how do you calculate?
5. ## Physics

The frequency of a light wave is the same when the light travels in ethyl alcohol or in carbon disulfide. Find the ratio of the wavelength of the light in ethyl alcohol to that in carbon disulfide. The refractive indices n of carbon disulfide and ethyl
6. ## att DR BOB

let me rephrase my question. A Mole of ethyl alcohol weights 46g.How many grams of ethyl alcohol are needed to produce 1 L of a 2 milimolar solution? I know the answer is 0.092g but I don't know how to derive it
7. ## Math

Suppose you have two alcohol+water solutions. One solution ( of volume x liter ) is 45% alcohol, while the second solution (of volume y liter) is 75% alcohol. What values of "x" and "y" (in liters) will fill a total volume of 5.0 liter which contains 2.88
8. ## Physics

Suppose that the amount of heat removed when 2.9 kg of water freezes at 0.0 oC were removed from ethyl alcohol at its freezing/melting point of -114.4 oC. How many kilograms of ethyl alcohol would freeze? I don't know where to start with this question!
9. ## organic chemistry

Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40°C rather than 78°C (the boiling point of ethyl alcohol), how would this affect the percent
10. ## Organic Chemistry

Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40°C rather than 78°C (the boiling point of ethyl alcohol), how would this affect the percent
11. ## physics

Brandy is made by distilling ethyl alcohol, which is done by boiling the alcohol until it turns into a gas. How much heat is required to completely distil 0.750 kg of ethyl alcohol?
12. ## physics

Brandy is made by distilling ethyl alcohol, which is done by boiling the alcohol until it turns into a gas. How much heat is required to completely distil 0.750 kg of ethyl alcohol?
13. ## physics

Suppose the amount of heat removed when 3.0kg of water freezes at 0 degree C were removed from ethyl alcohol and its freezing/melting point of -114 degree C. How many kilograms of ethyl alcohol would freeze? PLEASE GIVE ME SOME HINTS!!!THANKS A LOT!!!!
14. ## chemistry

Since October 2004, Jack Daniels Tennessee whisky, produced in Lynchburg, TN, has been bottled at 80 proof (40% alcohol by volume). Given that the density of ethyl alcohol is 0.789 g/cm3, and that of water 1.00 g/cm3, calculate the concentration of the
15. ## physics

i figured out the ratio its 1.10 , don't know how to get the second part please help!! my understanding is not good enough to answer part 2 Pretend you have two containers, one filled with ethyl alcohol and the other filled with benzene. How would you show
16. ## physical science

Since October 2004, Jack Daniels Tennessee whisky, produced in Lynchburg, TN, has been bottled at 80 proof (40% alcohol by volume). Given that the density of ethyl alcohol is 0.789 g/cm3, and that of water 1.00 g/cm3, calculate the concentration of the
17. ## Chemistry

An aqueous solution of ethyl alcohol is made by transfering 1.32 mL of liquid ethyl alcohol to a 50.0 mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of ethyl alcohol in the solution?
18. ## Inorganic Chemistry

Methyl Alcohol (CH3OH) and ethyl alcohol (C2H5OH) form ideal solutions at 50°C, the vapor pressure of pure methyl alcohol is 0.529 atm, and the vapor pressure of pure ethyl alcohol is 0.292 atm. What is the vapor pressure at 50°C of a solution containing
19. ## Chemistry

For the Following sets of compounds determine the best solvent, by looking at structure, also by looking at solubility vs. temp. Which is the best solvent for crystalization, in which the compound is too soluble, and in which solvent the compound is not
20. ## chemistry

Ethyl alcohol has a heat of vaporization of 850. J/g. What mass of ethyl alcohol can be boiled using 15000 J of energy?
21. ## science

what is the weight of the ethyl alcohol that exactly fills a 200.00 ml container? The density of ethyl alcohol is 0.789 grams/ml
22. ## chemistry

what is the height of the ethyl alcohol that exactly fills a 200.0mL container? the density of ethyl alcohol is 0.789/mL
23. ## Science

What is the mass of ethyl alcohol that fills a 0.200 L container? The density of ethyl alcohol is 0.789 g/mL.
24. ## Chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.500 mole of ethyl alcohol. If the vapor pressures of ethyl ether and ethyl alcohol at 20 oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20 oC (assuming ideal
25. ## Organic Chemistry

I have already calculated the volume of ethyl alcohol need to dissolve 0.300 g of sulfanilamide at 78 degrees Celsius. I got 1.429 mL ethyl alcohol. My question is: how do I calculate how many grams of sulfanilamide will remain dissolved in the mother
26. ## Chemistry

One liter of 70% alcohol is needed. How much 95% alcohol is required to make the 70% solution. And thank you for last question and any future ones.
27. ## Chemistry

One liter of 70% alcohol is needed. How much 95% alcohol is required to make the 70% solution. And thank you for last question and any future ones.
28. ## chem 2

solution is made by adding 0.100 mole of ethyl ether to 0.350 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20°C are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20°C (assuming ideal
29. ## chemistry

Ethyl alcohol (CH3CH2OH) has a heat of fusion of 5.01 kj/mol. How much heat in kj is required to melt 137g of ethyl alcohol.
30. ## Chemistry

Consider the molecules ether (CH3OCH3), ethyl alcohol (CH3CH2OH), and propanol (CH3CH2CH2OH) (not isopropanol!). The boiling point of ether is -25 degrees while the boiling point of ethyl alcohol is 78 degrees. How would you explain the difference in
31. ## college chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC (assuming ideal
32. ## chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC (assuming ideal
33. ## chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC (assuming ideal
34. ## science

2. Alex, a fresh graduate chemical engineer, started his job by a mission requested by his boss. He was supposed to prepare a small amount of ethylene in the lab, to use it later for polyethylene synthesis. His boss, OE, also known as “The Monster” did
35. ## Chemistry

I need help on this stoichiometry problem. I don't know whay my answer is incorrect. The fermentation of sugar to produce ethyl alcohol occurs by the following reaction: C6H12O6 -- 2C2H5OH + 2CO2 What mass of ethyl alcohol can be made from 1.00 kg of
36. ## chem 101

This is second part is built off the first question. These are all from a practice test. How much heat is required to raise the temperature of exactly one liter of water fro m 60 °F to 180 °F? correct answer: 279kj How much alcohol must be burned to
37. ## chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC
38. ## chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC
39. ## physics

A Pyrex flask in a refrigerator at -8 degrees Celsius is filled to the top and holds exactly 1000cm^3 of ethyl alcohol. If the refrigerator fails, how much alcohol spills by the time the temperature reaches 22 degrees Celsius? The coefficient of volume
40. ## Chemistry

If a solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC ..is how many
41. ## math

Help please A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol
42. ## math

A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the
43. ## math

A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the
44. ## chem 1151

a 250.0 mL of solution contains 50.0 mL acetone and 45.0 mL ethyl alcohol and the remainder water. Calculate the % acetone, % ethyl alcohol, and water in the solution. Show calculations.
45. ## physics

How much heat is needed to raise the temperature of 0.800kg ethyl alcohol from 15celsius to its boiling point at 78.3celsius?
46. ## Chemistry

A two-liter plastic soft drink bottle can withstand a pressure of 5.00 atm. Half a cup (approximately 120mL) of ethyl alcohol, (d=0.789g/mL) is poured into a soft drink bottle at room temperature. The bottle is then heated to 100C (3sig figs), changing the
47. ## Chemistry

A two-liter plastic soft drink bottle can withstand a pressure of 5.00 atm. Half a cup (approximately 120mL) of ethyl alcohol, (d=0.789g/mL) is poured into a soft drink bottle at room temperature. The bottle is then heated to 100C (3sig figs), changing the
48. ## Organic Chemistry

We used sodium dichromate in sulfuric acid to oxidize borneol to camphor. Suppose you needed to prepare benzaldehyde from benzyl alcohol. Would the sodium dichromate be the best choice for this oxidation or are there better choices? Explain.
49. ## CHEMISTRY

How many mL of pure isopropyl alcohol is needed to prepare 250 mL of 70% isopropyl alcohol (C3H7OH). I'm thinking if i should use vol of solute/vol of sol'n but it doesn't fit the formula and im confuse it. please help me
50. ## physics

hiw much heat is needed to raise the temperature of 0.800 kg. ethyl alcohol form 15.0 celcius to its boiling point 78.3 celcius
51. ## algebra 2

hiw much heat is needed to raise the temperature of 0.800 kg. ethyl alcohol form 15.0 celcius to its boiling point 78.3 celcius
52. ## chem

An 80 proof brandy is 40.0% (v/v) ethyl alcohol. The "proof" is twice the percent concentration of alcohol in the beverage.How many milliliters of alcohol are present in 700mL of brandy?
53. ## Chemistry

I'm having trouble getting the right answer for a problem, I'm hoping that by posting my work someone can help me figure out where I've gone wrong. A two-liter soft drink bottle can withstand a pressure of 5 atm. Half a cup [approximately 120 mL) of ethyl
54. ## physics

If a container holds 0.865 L of ethyl alcohol at 12.0 degree{C}}, what is the volume of the alcohol when its temperature is raised to 35.0 degrees celcius? i was thinking it was VT=VT and sub in but keep coming out with wrong answer
55. ## science

The "proof" of an alcoholic beverage is twice the volume percent of ethyl alcohol, C2H5OH in water. The density of ethyl alcohol is 0.789g/ml and that of water is 1.00g/ml. A bottle of 100 proof rum is left outside on a cold winter day. a.) Will the rum
56. ## Chemistry

Q. How much of 80% alcohol should b mixed with 30ml of 95% alcohol in order to prepare 90% alcohol?
57. ## Chemistry - %v/v

1. How many mL of acetone are needed to prepare a 10% v/v solution in 500 mL of methanol? 2. If a 500mL solution of n-propanol in water is prepared with 4mL of alcohol, what is the concentration of alcohol in % v/v? I've never worked with %v/v before so
58. ## Chemistry

Consider a 9% by mass aqueous ethyl alcohol solution. a.) Calculate the molality of this solution_____m b.) Given that ethyl alcohol is a molecular solute, calculate the freezing point of this solution. ________ degrees Celsius. c.) Consider the boiling
59. ## Science

A solution made up of 20ml of mythl alcohol and 50ml of water. What is the volume percent of ethyl alcohol in solution.
60. ## physics

how much ice at -10degree celsius is needed to cool .1 kg of ethyl alcohol and .1kg of water from 20 degree celcius to 5 degree celsius?
61. ## Chemistry

The solubility of KI in ethyl alcohol is 2.00 grams of KI in 100.0 grams of this alcohol. From this information, calculate the molarity of this solution.
62. ## Chemistry

Calculate mass of silver nitrate needed to prepare a solution of concentration 0.01 moles per liter.
63. ## CHEMISTRY

WOULD YOU PLEASE SAY ME WHATWE USE ETHANOL IN SENTHESIS OF CU(NH3)4SO4.H2O I'm not sure. You don't say what kind of ethyl alcohol nor how you synthesized the copper salt; however, an educated guess is that you used absolute alcohol (100%) to form the
64. ## chemistry

if I were to make 1 liter of 8% alcohol soultion, how much water and how much alcohol would I need?
65. ## Science

Which is a better bacteria killer? Bleach or hand sanitizer which contains 62% ethyl alcohol. i'm not sure but i think is the hand sanitizer. hand sanitizer ok thanks. What kind of germs? What temperature? In any case, I think bleach would be hard to beat
66. ## Organic Chemistry Lab

a)If the Keq for the esterification of acetic acid with isopentyl alcohol is 3.0, what is the maximum amount of isopentyl acetate that can be recovered at equilibrium if a 1:1 mole ratio of alcohol was used? b)If a 1:5 mole ratio was used? c) 5:1 mole
67. ## chemistry 116

Suppose someone had an excessive Friday evening drinking party and then did the ultra-dumb thing of driving home while drunk. Luckily, the person got pulled over by the police before they can injure anyone else. The police took a blood alcohol reading of
68. ## science

Explain why the boiling point of ethyl alcohol (C2H5OH, 78.4 oC) is higher than the boiling point of methyl alcohol (CH3OH, 64.7 oC).
69. ## math

An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.] (a) Find a
70. ## math

An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.] (a) Find a
71. ## Physics

Glycerin is poured into an open U-shaped tube until the height in both sides is 20 {\rm cm}. Ethyl alcohol is then poured into one arm until the height of the alcohol column is 20 {\rm cm}. The two liquids do not mix. What is the difference in height
72. ## Physics

Glycerin is poured into an open U-shaped tube until the height in both sides is 18 cm . Ethyl alcohol is then poured into one arm until the height of the alcohol column is 18 cm . The two liquids do not mix. What is the difference in height between the top
73. ## physics

Glycerin, of density 1260.0 kg/m3, is poured into an open U-shaped tube. Ethyl alcohol, of density 790.0 kg/m3, is then poured into one arm until the height of the alcohol column is 21.4 cm. The two liquids do not mix. What is the difference in height
74. ## Organic Chemistry

Hello I have to determine the theoritical yield of sulfanilamide after crystalization of impure sulfanilamide with 95% ethyl alcohol (the impure sulfanilamide contains 5% Fluorenone) I understand how to calculate the theoretical yield, my problem is
75. ## chemistry

If you used the alcohol burner to heat the water and all of the heat from the burning of the alcohol went into heating the water, how many grams of alcohol will you burn to do that heating? (Remember, for every 7,000 calories needed, it will use up a gram
76. ## Physical Education

A solid object floats on ethyl alcohol, with 68.2%of the object’s volume submerged .Find the density of the object. Take density of alcohol =806 kg/m
77. ## science

How is ethyl alcohol convert into chloroform?
78. ## physics

A 350g glass beaker contains 500g of water at a temperature of 10.0°C. If 400g of ethyl alcohol at 35°C is subsequently poured into the beaker and the water and alcohol mixture is thoroughly stirred, what is its equilibrium temperature?
79. ## CHEMISTRY

Suppose that 1.01g of rubbing alcohol(C3H8O) evaporates from a 56.0g aluminum block. If the aluminum block is initially at 25'C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the
80. ## Chemistry

In Hydration of 2-Ethyl-1-Butene which alcohol is predominant? Thanks!!!
81. ## CHEMISTRY

WHAT WOULD BEST TO MEASURE 18ML OF ETHYL ALCOHOL ACCURATELY
82. ## chemistry

how many molecules are in 35 grams of C2H60 (ethyl alcohol(?
83. ## chemm

find the density of ethyl alcohol if 80.0 cm^3 "weighs" 63.3g.
84. ## chemistry

find the density of ethyl alcohol if 80.0 cm^3 "weighs" 63.3g.
85. ## Chemistry

Suppose that 1.00 g of rubbing alcohol (C3H8O) evaporates from a 57.0g aluminum block If the aluminum block is initially at 25 C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the
86. ## Science

Write a mechanism for the Claisen reaction of ethyl ethanoate (ethyl acetate) to give ethyl acetoacetate?
87. ## Chemistry

The question asks to determine the IUPAC name of a compound based on a diagram. I would choose the name: (Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene However, this doesn't match any of the given choices. They are: a. (Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene b.
88. ## chemistry

what does the structure of 2-ethyl- 3-methyl-4-ethyl -heptane look like? IS a correct name for it 5-ethyl- , 3,4- dimethyl -octane?
89. ## chemistry

1. 30.0 ml of ethyl alcohol(density=0.790g/ml)are added to a graduated cylinder that weighs 44.28 grams. what will be the mass of the graduated cylinder plus the alcohol(in grams)?
90. ## cHEM

cThe price of gold is $625 per troy ounce at this writing. How much heat (in J) is needed to raise the temperature of$5000.00 worth of gold from 29.5 oC to 70.5 oC? (1 troy oz = 31.10 g and the specific heat of Au is 25.42 J/(moloC).) I got 5.125, which
91. ## chemistry

What will be the concentration % of 50ml ethyl alcohol and 150 ml water
92. ## Chemistry

How many moles of ethyl alcohol C2H6O are in a 25.0 sample? How do I calculate?
93. ## chemistry

what is the osmolarity of a 1.0M solution of ethyl alcohol (C2H6O) in water?
94. ## chemistry

Draw the condensed structural formulas of ethyl alcohol
95. ## physics

the mass density of a mixture of ethyl alcohol and water is 950kg/m^3. is the mixture mostly water, alcohol, or about half and half. What is your reasoning?
96. ## science

suppose we have 10 liters of water in a 20 liter bucket and we submerge a one liter soda bottle with water. The buoyant force on a submerged one liter bottle is equal to?
97. ## Chemistry

How much heat needs to be released if 95g sample of ethyl alcohol condenses?
98. ## chemistry

How much ethyl alcohol (C2H5OH) must be added to 1.00 L of water so that the solution will not freeze at -4°F?
99. ## chemistry

how much ethyl alcohol must be added to 1.00l of water so that the solution will not freeze at -4f
100. ## physics

You have exactly 1 L of ethyl alcohol at room temperature 23 C. You put it in a refrigerator at 4 C.What's its new volume?