# Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 90 quarts that is 60% alcohol?

38,963 results
1. ## Chemistry

How many grams (of mass m) of glucose are in 355mL of a 5.50% (m/v) glucose solution? You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 2.49L of solution, what is the volume (V) in milliliters of methyl alcohol? A 6.00 % (m/v)

2. ## Chemistry

I was just wanting to make sure I did these right. How many grams of solute are in each of the following solutions? a.) 2.5 L of 3.0 M Al(NO3)3 solution. for this one I get 1600 g of Al(NO3)3 b.) 75 ml of 0.5 M C6H12O6 solution. and for this one I get 6.8g

3. ## into to algebra

You need a 45% alcohol solution. On hand, you have a 150 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

4. ## math

A tank contains 50 gallons of a solution composed of 90% water and 10% alcohol. A second solution containing 50% water and 50% alcohol is added to the tank at rate of 4 gallons per minute. As the second solution is being added, the tank is being drained at

5. ## chemistry

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

6. ## college algebra

How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol

7. ## math

A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment 70 ML of the 50% solution and 35 ML of the 80% solution

8. ## Math

1. In the lab, Deon has two solutions that contain alcohol and is mixing them with each other. Solution A is 40% alcohol and Solution B is 12% alcohol. He uses 1000 milliliters of Solution A. How many milliliters of Solution B does he use, if the resulting

9. ## Math

Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 90 quarts that is 60% alcohol?

10. ## algebra

A certain car's cooling system has an 8-qt capacity and is filled with a mixture that is 30% alcohol. How much of this mixture must be drained off and replaced with pure alcohol if the solution is to be 50% alcohol?

11. ## college chem

. Jack Daniels Tennessee whiskey is 40.00% ethanol by volume. However, % alcohol by mass is quite different from % by volume. The molality of ethanol in an aqueous solution that is 40.00 % ethanol by volume is 10.88 molal. A) Find the % ethanol by MASS,

12. ## Chemistry

I have Sodium Benzoate and Benzyl Alcohol in a solution. I used an ether to separate the two. I know the alcohol dissolved into the ether and benzoate stayed in the aqueous solution. However, So my question is.. why the alcohol is able to dissolve better

13. ## Algebra

A science teacher has a supply of 20% saline solution and a supply of 50% saline solution. How much of each solution should the teacher mix together to get 60 mL of 28% saline solution for an experiment? I have an idea of what to do but need some help.

14. ## science

1. Which of the following is TRUE regarding this situation: Solution A has a pH of 7.38, and Solution B has a pH of 7.42? a.Solution B is more acidic than Solution A b.The pH of Solution A falls within the homeostatic pH range for extracellular body

15. ## algebra

how many liters of a 14% alcohol solution must be mixed with 20 L of a 50% solution to get a 30% solution? Help!

16. ## algebra

A laboratory assistant is asked to mix a 30% alcohol solution with 21 liters of an 80% alcohol solution to make a 60% alcohol solution. How many liters of the 30% alcohol solution should be used? need help do not understand this question how would i set

17. ## 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 possible

18. ## college algebra

You need a 45% alcohol solution. On hand, you have a 350 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution? You will need ________ mL of the 70% solution

19. ## Algebra

Suppose that you have a supply of a 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 40 quarts that is 40% alcohol?

20. ## maths

In the lab, Teresa has two solutions that contain alcohol and is mixing them with each other. She uses 4 times as much Solution A as Solution B. Solution A is 17% alcohol and Solution B is 10% alcohol. How many milliliters of Solution B does she use, if

21. ## algebra

How many kilograms of pure alcohol must be added to 40 kg of a 70% alcohol solution to produce an 85% alcohol solution?

22. ## 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

Six quarts of a 20% solution of alcohol in water are mixed with 4 quarts of a 60% solution of alcohol in water. The alcoholic strength of the mixture is. A. 80% B. 50% C. 36% D. None I HAVE NO IDEA HOW TO DO IT PLEASE HELP

24. ## chemistry

If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?

25. ## algebra

Suppose that you have a supply of a 20% solution of alcohol and a 80% solution of alcohol. How many quarts of each should be mixed to produce 60 quarts that is 65% alcohol?

26. ## math

in the lab, tom has two solutions that contain alcohol and is mixing them with each other. he uses 300 millilters less of solution A than solution B. solution A is 10% alcohol and solution B is 13% alcohol. How many millilters of solution B does he use, if

27. ## 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

28. ## Algebra

A chemist mixed a 70% alcohol solution with a 30% alcohol solution to make a 45% alcohol solution. How many liters of each were used to make 120 L of a 45% solution? I tried solving this with elimination method and made two separate equations. For

29. ## Math (Algebra)

A chemistry student needs to make 60 liters of a 30% alcohol solution. He has a 20% alcohol solution and a 40% alcohol solution in the lab. How many liters of each strength does he need to mix together *The system of equations I did was: a+b=60 &

30. ## math

15L OF 36% Alcohol solution is mixed with 30L of 45% alcohol solution.what is concentration of resultant solution??? (ans 42% how???)

31. ## science-math

A pharmacist has an 18% alcohol solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% alcohol solution?

32. ## Algebra 1

A lab technician has a 15 percent alcohol solution and a 35 percent alcohol solution. She wants to make 100 gallons of a 29 percent alcohol solution. How much of the 15 percent solution should she use?

33. ## chemistry

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

34. ## chemistry

You need 715 mL of a 45% alcohol solution. On hand, you have a 55% alcohol mixture. How much of the 55% alcohol mixture and pure water will you need to obtain the desired solution?

35. ## math

A nurse has a 30% alcohol solution and an 80% alcohol solution. He needs 10L of a 40% alcohol solution.

36. ## Chemistry

Captain Kirk, of the Starship Enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. The combination is the pH of Solution A described below,

37. ## science

In 91% (by volume) isopropyl alcohol (a large [compared to water], flammable molecule) solution, there are only two substances: the alcohol, and water. So when I poured 50 mL of 91% isopropyl alcohol into a graduated cylinder, how many milliliters were

38. ## algebra

A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 mL of 60% sugar solution for an experiment ?

39. ## chemistry

Captain Kirk, of the Starship Enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. The combination is the pH of Solution A described below,

40. ## 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

41. ## College Chemistry Lab

Determine the molarity of FD&C Yellow #5 in the following solution that's prepared by mixing the dye solution with water and alcohol. None of the solutes react with one another. 6.35x10^-5M FD&C Yellow #5 = 6.50mL deionized water = 6.50mL ethyl alcohol =

42. ## Math

How many gallons of 30% alcohol solution and 45% alcohol solution must be mixed to get 12 gallons of 35% alcohol solution?

43. ## Chemistry

A 7.83 g sample of NaCl is dissolved in 90.00 mL of ethyl alcohol solution. Calculate the molar concentration of the solution.

44. ## MATH

Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 100 quarts that is 30% alcohol?

45. ## Math -

A)For a certain commodity the demand equation is given by D=-3p+20. At the price of \$1, four units of the commodity are supplied.If the supply equation is linear and the market price is \$4, find the supply equation. B) how many litres of a 70% alcohol

46. ## math / algebra

n the lab, Bob has two solutions that contain alcohol and is mixing them with each other. He uses 400 milliliters less of Solution A than Solution B. Solution A is 20% alcohol and Solution B is 13% alcohol. How many milliliters of Solution B does he use,

47. ## Algebra

During a science experiment, Nico created a 32%alcohol solution by mixing 8 fluid ounces of a 50% alcohol solution with a certain amount of an 8% alcohol solution. How many fluid ounces of the 32% alcohol solution did he create?

Mary has a solution that is 60% alcohol and another that is 20% alcohol. How much of each should she use to make 100 milliliters of a solution that is 52% alcohol. I totally forget how to do this kind of problem. Please help if you can! Thank you so much!

49. ## math

A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcohol solution?

50. ## Algebra

A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcohol solution?

51. ## Math

One solution contains 25% as much water as alcohol and another solution contains 5 times as much water as alcohol. How many gallons of each solution must be mixed in order to obtain 7 gallons of the new solution which contains as much water as alcohol?

52. ## Algebra 1

A science teacher has supply of 50% methane solution and a supply of 80% methane solution.How much of each solution should the teacher mix together to get 105 mL of 60% methane solution for an experiment. a. 70 mL of the 50% solution and 35 mL of the 80%

53. ## Math

A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment a. 70 ML of the 50% solution and 35 ML of the 80%

54. ## algebra HELP

mary has a solution that is 60% alcohol and another that is 20% alcohol. how much of each should she use to make 100 milliliters of a solution that is 52% alcohol? please help, I don't understand how to do this problem!

55. ## algebra

moonshine has 50 liters of a 70% alcohol solution.how many liters of pure alcohol must be added to obtain an 80% alcohol solution? The alcohol content is .7*50=35 liters. Then, adding alcohol... 35+V=.80*(50+V) solve for V, volume alcohol added

56. ## math

A 5% alcohol solution is mixed with 15% alcohol solution to make a 25mlof a 9% solution. How much of each alcohol solution is used?

57. ## algebra

a chemist needs to mix a 70 alcohol solution with a 40 alcohol solution to obtain 75 liters of a 50% alcohol solution. how many liters of each alcohol solution must be used

58. ## Math

Solution A is 80% Alcohol and Solution B is 30% Alcohol. How many Liters of each Solutions should be mixed in order to make 200 liters of a Solution that is 62% Alcohol ?

59. ## Math

1. ABC Feeds has two different types of cattle feed containing crude protein in the amount of 45% and 20% respectively. How many of each type must a feed lot manager mix together to obtain 10 000lbs of a mixture that is 25% protein? 2. Meg has a solution

60. ## math

A pharmacist has an 18% alcohol solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% alcohol solution?

61. ## 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 possible

62. ## chemistry

suppose that you have a micro pipet which delivers 100 drops per cubic centimeter, and a solution of 5.0% by volume of oil in alcohol. if you had used 10 drops of this solution, how many cubic centimeters of pure oil would be left after evaporation of the

63. ## Alegebra

Solution A is 60% alcohol and Solution B is 30% alcohol. How much of each is needed to make 30 gallons of a solution that is 40% alcohol

64. ## math

Mary has a solution that is 60% alcohol and another that is 20% alcohol. How much of each should she use to make 100 milliliters of a solution that is 52% alcohol?

65. ## chemistry

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

66. ## Science

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

67. ## chemistry

what is the molarity of the solution obtained by mixing 25.0 ml of a 3.00 M methyl alcohol solution with 225.0 ml of a 0.100 M methyl alcohol solution?

68. ## Math-Algebra

Meg has a solution that is 40% alcohol and another solution that is 60% alcohol. If Meg wants 12 gal of a solution that is 45% alcohol, how much of the two solutions must be mixed?

69. ## Science

Rubbing alcohol is a solution of 70 percent alcohol and 30 percent water. In the alcohol solution, which is the solute and which is the solvent? Explain.

70. ## MATH word prob!

how many gallons of 70% alcohol solution must be mixed with 30 gallons of 23% solution to obtain a solution that is 60% alcohol? How do I solve this problem?

71. ## Math

How much of 20% alcohol solution and 50% alcohol solution must be mixted to get 9 liters of 30% alcohol solution?

72. ## math

How much of 20% alcohol solution and 50% alcohol solution must be mixted to get 9 liters of 30% alcohol solution?

73. ## Algebra

Seventy-five grams of alcohol were added to 225 grams of a 15% alcohol solution. What was the percent of alcohol in the new solution?

74. ## algebra

How much water should be added to 20oz of a 15% solution of alcohol to dilute it to s 10% alcohol solution?

75. ## Chemistry

A solubility graph showing the solubility in grams of substance X in 100.0 g of alcohol. At 20 degrees Celsius, 24.0 grams of substance X will dissolve. At 50 degrees, 60.0 grams will dissolve. A saturated solution of X (s) in alcohol is cooled down from

76. ## math

A solution of alcohol and water is a% alcohol where a = 40. The solution is found to contain 32 milliliters of alcohol. How many milliliters total (both alcohol and water) are in the solution?

77. ## algebra

Dilbert needs to mix a 10% alcohol solution with a 30% alcohol solution to create 100 millileters of a 16% solution. How many millileters of each solution must Dilbert use?

78. ## Math

In 500cmcube of alcohol solution the percentage of alcohol by volume is 80%. Find the volume of water that must be added to the solution so that the ratio of the volume of alcohol to that of water becomes 5:2? Please some one give me answer

79. ## Math

How many litres of 30percent alcohol solution must be mixed with 30litre of a90percent solution to get a 80percent solution?

80. ## algebra

How many liters of 20% alcohol solution should Maria mix with 50 liters of a 60% alcohol solution to obtain a 30% solution?

81. ## college chemistry

Suppose you have a 0.200 M solution of the nitrogen-containing weak base NX. Suppose you wish to titrate 25 mL of this 0.200 M NX solution with a 0.100 M solution of the strong acid HNO3. Given that the Kb value of NX is 6.50x10-5, complete each of the

82. ## 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?

83. ## algebra

a lab technician has a 15% alcohol solution. She wants to make 100 gallons of a 29% solution. How much of the 15% solution should she use?

84. ## math

clearly define variables. set up the equations.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol? x represents? y represents? equation 1? equation 2?

85. ## Pre-Algebra Calculus

NEED HELP PLEASE Mixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it was platinum? 2. 12 gal.

86. ## MATH

Pewee adds two liters of pure alcohol to a 30% solution of alcohol in water. If the new concentration is 40%, how many liters of the original solution were there?

87. ## math

a chemist has a solution that is 20 percent alcohol by volume. which of the following expressions represents the percent of alcohol by volume when m litersof the solution is mixed with h liters of pure alcohol and p liters of water? a) 20(m+h+p)% b)

88. ## Maths

How much pure alcohol has to be added to 400ml of a solution containing 15% alcohol to change the concentration of alcohol in the mixture to 32%?

89. ## Algebra 1

A restaurant has one type of lemonade that has 12% sugar and another that is 7% sugar. How many gallons of each does the restaurant need to make 20 gallons of a lemonade mixture that is 10% sugar? a. 12 gallons of the 12% lemonade and 8 gallons of the 7%

90. ## Solution Making

Suppose you start with a 5X solution A, and you want a final volume of 10ul of 1X solution. How much Solution A do you need? Can you please check my work not sure. I need 2 ul of solution A to 8 ul of H2O. 5/1=.2*10=2

91. ## Science

80ml of methyl alcohol water are mixed to give a solution that has a final volume of 154ml. What is the concentration of the solution expressed as percent by volume methyl alcohol?

92. ## math

how many oz of 25% alcohol solution must be mixed with 14oz of 30oz alcohol to make 26% alcohol

93. ## Algebra

How many ounces of a 26% alcohol solution and a 32% alcohol solution must be combined to obtain 34 ounces of a 29% solution?

94. ## algebra

how many ounces of a 26% alcohol solution and a 44% alcohol solution must be combined to obtain 56 ounces of a 29% solution?

95. ## Chemistry

A chemist has a supply of supersaturated CuSO4 solution that contains 230.0grams per litre of water. The chemist also has another supply of copper sulphate solution with a concentration of 150.0 grams per litre. What quantities of each copper sulphate

96. ## math

How many quarts of water must be added to 18 quarts of a 32% alcohol solution to dilute it to a solution that is only 12% alcohol.

97. ## Math

You have 8 liters of a 60% alcohol solution. How many liters of water should be added to make a 35% alcohol solution?.

98. ## Algebra 1

What is the solution to the system? use elimination . -18.6x+ 17.2y=90.2 14.2x+ 3.4y= -35.8 a.(3,2) b.(-3,2) c.(2/3,4/9) d.(2,3) IS IT D?? Terry and ed start a lawn mowing business and purchase mowers and equipment for \$800. They charge \$20 for each lawn

99. ## chemistry

An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?

100. ## chemistry

An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?