1. College Chemistry

    a mixture contains two crystalline solid X and Y. Decide if pure X can be obtained by a proper recrystallization using solvent A. Include the exact volumes of solvent used and the amount of pure X obtained. GIVEN: Solubility of X in boiling A :200mg/ml

    asked by Anonymous on January 22, 2013
  2. Gen Chem

    Which of the following conditions MUST be true for the entropy of a pure solid to be zero? a) T must be 0 K b) The solid must be crystalline and not amorphous c)the solid must be perfectly ordered d) the solid form must be an element

    asked by Sarah H on March 28, 2008
  3. Chemistry

    "A sample of 21.50 g of KHT is mixed with 1.000 L of pure water. After stirring the mixture for 30 minutes, there is still solid at the bottom of the container. Calculate the mass of the remaining solid. Use the value of Ksp that you obtained in your

    asked by ryancon on October 10, 2018
  4. Sciences

    What is a substance that cannot be separated into simpler substances by physical or mechanical methods such as filtering, boiling, or sifting? A crystalline solid A sublimation A pure substance •• An amorphous solid Correct me if I'm wrong

    asked by Kiana on February 10, 2016
  5. Chemistry

    A crystalline white solid is a mixture of glucose (C6H12O6) and sucrose (C12H22O11). Is it possible that a 10.00 g sample of the solid dissolved in 100.0 g H2O might have a freezing point of -1.25 degrees C? Explain. Answer: No. The freezing point would be

    asked by JJ on February 25, 2013
  6. Chemistry

    If we wish to find the molar mass of a pure solid organic compound, which measurement would be most useful and why? A)melting point of the solid B)melting point depression of the mixture of the solid with 1,4-dichlorobenzene C)Heat of combustion

    asked by Shenaya on July 27, 2017
  7. Chemistry

    The following equilibrium was studied by analyzing the equilibrium mixture for the amount of H2S produced. Sb2S3(solid)+3H2(gas)2Sb(solid)+3H2S(solid) A vessel whose volume is 2.5L is filled with 0.0100 mole of antimony(III)Sulfide, Sb2S3, and 0.0100 mole

    asked by Laffy Taffy on April 1, 2012
  8. chm

    How would you classify the following material?swimming pool water homogeneous mixture

    asked by JJ on February 23, 2013
  9. Chemistry

    You are given a jar containing a mixture of three different solid substances. The particles of each substance are larger than 0.5 cm in diameter. All you know about the substances is that each is a pure metal. Describe a method for determining the

    asked by Haley on February 24, 2010
  10. chemistry

    You are analyzing a solid isolated from a reaction and find that its boiling point is over 1000 ∘C. You dissolve the compound in water solution and recrystallize it to produce some solid crystals that you use to determine that the compound is a

    asked by Sheila on January 24, 2014
  11. chemistry

    Kc = [Na+][Cl-]/[NaCl(s)] The above equation contains the concentration of NaCl in solid NaCl. This concentration is related to the density of solid NaCl and its molar mass. Since the density of NaCl or of any pure solid or pure liquid does not vary with

    asked by jessica on July 21, 2009
  12. Chemistry

    Aspirin can be prepared by the reaction of salicylic acid with an excess of acetic anhydride, using phosphoric acid as a catalyst. Once the aspirin is formed, it is precipitated from the reaction mixture by adding water and filtering. The solid aspirin

    asked by Paul on April 2, 2009
  13. chemistry

    Nitrogen dioxide (NO2) cannot be obtained in a pure form in the gas phase because it exists as a mixture of NO2 and N2O4. At 23°C and 0.94 atm, the density of this gas mixture is 2.6 g/L. What is the partial pressure of each gas? NO2 N2O4

    asked by Kailee on November 18, 2012
  14. AP Chem

    Ammonium Chloride is a white solid. When heated to 325 degrees C, it gives a vapor that is a mixture of ammonia and hydrogen chloride. Suppose someone contends that the vapor consists of NH4Cl molecules rather than a mixture of NH3 and HCl. Could you

    asked by Anna on November 16, 2008
  15. AP Chem

    Ammonium Chloride is a white solid. When heated to 325 degrees C, it gives a vapor that is a mixture of ammonia and hydrogen chloride. Suppose someone contends that the vapor consists of NH4Cl molecules rather than a mixture of NH3 and HCl. Could you

    asked by Anna on November 16, 2008
  16. Chemistry

    Hi! I'm having trouble solving this question, not sure how to go about starting it: Magnalium is a solid mixture of aluminum metal & magnesium metal. An irregular shaped chunk of a sample of magnalium is weighed twice, once in air (211.5g) and once in

    asked by Mila on February 27, 2016
  17. ORGANIC CHEMISTRY

    NAME THE PROCESSES OR TECHNIQUES IN THE FOLLOWING. 1.SEPARATION OF A SOLID FROM A SOLUTION 2.WHEN WATER IS COLD TO FORM ICE 3.WHEN WATER IS BOIL TO FORM VAPOR 4.WHEN IODINE IS HEATED DIRECTLY TO FORM GAS WITHOUT BEING LIQUID 5.WHEN STEAM IS COLD TO FORM

    asked by SAMIRA on February 10, 2012
  18. Organic Chemistry

    In order to obtain pure synthetic plant hormone, a 2:1 mixture of water and ethanol is used as the crystallizing solvent. Why is a solvent mixture used? A. Organic compounds are not soluble in pure ethanol. B. Ethanol and water have similar boiling points,

    asked by nilee on March 6, 2009
  19. Science

    In a(n) ___, the particles form a regular, repeating pattern. Answerlist: viscous liquid melting liquid amorphous solid or crystalline solid

    asked by A.J on April 8, 2014
  20. math

    a mixture of alcohol and water is 35% acid. if the mixture contains a total of 40L, How many liters of pure acid are in the mixture? how many liters of pure water are in the mixture?

    asked by Anonymous on June 30, 2013
  21. algebra

    a mixture of alcohol and water is 35% acid. if the mixture contains a total of 40L, How many liters of pure acid are in the mixture? how many liters of pure water are in the mixture?

    asked by gechii on June 30, 2013
  22. Chem - oxides

    When an element is burnt in excess oxygen, is the oxide formed always: 1. a crystalline solid 2. greater in mass than the element 3. soluble in water 4. white in color alright, i know that most oxides are not soluble in water other than group 1 elements

    asked by Monica on September 23, 2009
  23. college algebra word problem

    A goldsmith has two alloys that are different purities of gold. The first is 3/4 pure and the second is 5/12 pure. How many ounces of each should be melted and mixed in order to obtain a 6 oz mixture that is 2/3 pure gold?

    asked by megan on February 25, 2009
  24. ochem

    Can you suggest some possible reasons for using a mixture of water and ethanol (1:1 mixture H2O/EtOH) as crystallizing solvent rather than using either pure ethanol or pure water?

    asked by lili on January 23, 2009
  25. algebra

    Your automobile radiator contains 15 quarts of an antifreeze mixture. A test shows the mixture is 40% antifreeze and 60% water. The owner's manual says the mixture should be 50% antifreeze and 50% water. How much of the mixture should be removed and

    asked by May on November 8, 2017
  26. Chemistry

    During fractional distillation of ethanol/water mixture, why can't pure ethanol be obtained (i.e. distillated contains a little water)?

    asked by candy on April 4, 2009
  27. Chemistry

    Describe how one would obtain the stated pure product from the following mixtures and assume that this cannot be achieved simply by distillation of the original mixture: 1. benzoic acid from a mixture with ammonium benzoate 2. phenylamine from a mixture

    asked by Matt on April 5, 2013
  28. science

    list as many ways as u can how are crystalline solids connected to science? how are crystalline solids connected to math? how are crystalline solids connected to the world? how are crystalline solids connected to you? why is it important?

    asked by kim on October 7, 2007
  29. Chemistry

    A 10.00 gram solid sample consisting of a mixture of sodium chloride and potassium sulfate is dissolved in 100.0 mL of water is combined with another 200.0 mL solution that contains excess aqueous lead(II) nitrate. Upon mixing the two solutions, a solid

    asked by keitanako on March 18, 2014
  30. Math

    An advertisement for a pineapple drink claims that the drink contains 15%pineapple juice. How much pure pineapple juice would have to be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice? This is a mixture problem. Pineapple

    asked by Regina on December 14, 2006
  31. AP CHEMISTRY

    A)In a chemical reaction two gases combine to form a solid. What do you expect for the sign of ΔS? B) For which of the following processes does the entropy of the system increase? (Select all that apply.) -> alignment of iron filings in a magnetic field

    asked by HELP PLEASE on March 19, 2012
  32. weighted averages

    How do you do this? a pineapple drink contains 15% pineapple juice. how much pure pineapple juice should be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice? Let X be the amount of pure pineapple that you must add, in

    asked by Em on October 23, 2006
  33. chemistry

    Is diamond a pure substance, a homogeneous mixture or a heterogeneous mixture????

    asked by person on September 4, 2010
  34. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 9 - 9x^2 , y = 0 Find the volume V of this solid. Sketch the region, the solid, and a typical disk or washer. Any help or tips would be greatly

    asked by Tina on March 8, 2011
  35. Math

    A mixture of water and sucrose is 10% sucrose by weight. How many grams of pure sucrose must be added to a 200-gram sample of this mixture to produce a mixture that is 20% sucrose?

    asked by Jay on July 6, 2009
  36. chemistry

    A sample of solid KCl (potassium chloride) weighing 0.500 g is mixed with an unweighed sample of solid MgCl2 (magnesium chloride) and the mixture is then completely dissolved in water to form a clear solution. An aqueous solution of AgNO3 (silver nitrate)

    asked by Anonymous on October 6, 2010
  37. AP Chem

    A sample of solid KCl (potassium chloride) weighing 0.500 g is mixed with an unweighed sample of solid MgCl2 (magnesium chloride) and the mixture is then completely dissolved in water to form a clear solution. An aqueous solution of AgNO3 (silver nitrate)

    asked by benji on October 6, 2010
  38. Chemistry

    Which of the following best describes the difference between a mixture and a pure substance? A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom. B. A mixture has the same properties throughout; a

    asked by Anonymous on October 23, 2012
  39. Algebra

    The radiator in Natalies car contains 6.3L of antifreeze and water.This mixture is 30% antifreeze.How much of this mixture should she drain and replace with pure antifreeze so that there will be a mixture of 505 antifreeze?

    asked by sherry on March 22, 2012
  40. college chemistry

    A solid consists of mixture of NaNO3 and Mg(NO3)2. When 6.50 g of this solid is dissolved in 50.0 g of water, the freezing point is lowered by 5.40⁰C. What is the composition of the solid (in mass percent)? Assume ideal behavior but watch out for the

    asked by Stephanie on April 28, 2010
  41. Chemistry

    27. Amorphous solids have crystal structures.- F? 32. Pure, crystalline solids freeze and melt at the same temperature.- F 34. Water expands as it freezes.- T Thanks -MC

    asked by mysterychicken on October 26, 2010
  42. CALCULUS 2

    Consider the solid obtained by rotating the region bounded by the given curves about the line x = 1. y = x, y = 0, x = 4, x = 6 Find the volume V of this solid

    asked by HELP PLEASE! on February 18, 2010
  43. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the line x = 4. x= 4y^2 , x = 4 Find the volume V of this solid.

    asked by JESSICA on February 17, 2010
  44. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 6 x^6 , y = 6 x , x >= 0 Find the volume V of this solid.

    asked by bob on January 31, 2009
  45. chem 121

    We did a lab separating out the components of a mixture. One of the lab questions is "The weight of naphthalene was obtained by weighing the collected solid. Was this an accurate weight of the naphthalene present in the original sample?" I don't know how

    asked by Martha on October 18, 2010
  46. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y=6x^5, y=6x, x>or equal to 0 Find the volume V of this solid.

    asked by Albert on February 2, 2010
  47. Calculus II

    Consider the solid obtained by rotating the region bounded by the given curves about the y-axis. y = ln x, y = 4, y = 5, x = 0 Find the volume V of this solid. Help!!! Thank you in advance :(

    asked by Sarah on March 8, 2011
  48. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the line x = 6. y = sqrt(x), y = x Find the volume V of this solid.

    asked by bob on January 31, 2009
  49. chemistry

    A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen to prduce 1.252 g pure copper metal. Calculate the percentage composition (by mass) of the mixture.

    asked by kelly on September 26, 2010
  50. Chemistry

    How would I calculate this? 30.0 mL of pure water at 280. K is mixed with 50.0 mL of pure water at 307 K. What is the final temperature of the mixture?

    asked by Mary on June 30, 2013
  51. math

    When a chemist dilutes pure acid with another substance, the resulting mixture is no longer pure acid. Consistent with the words, pure acid is 100% acid. So, there are 20 grams of pure acid in 20 grams of a pure-acid solution. Laura, a chemist, has 20

    asked by Julia on December 4, 2016
  52. Algebra

    A car's cooling system of a car has a capacity of 15 liters. suppose that it is currently full of a 40% antifreeze mixture. you want 60% antifreeze mixture so you drain some of the current mixture and then add the pure antifreeze. How much antifreeze

    asked by John's on February 24, 2016
  53. calculus 2

    Consider the solid obtained by rotating the region bounded by the given curves about the line x = -3. y = x^2 , x = y^2 Find the volume V of this solid. I keep finding the wrong answer.

    asked by angel on February 17, 2010
  54. Grade 9 science

    What is an example of a homogeneous mixter that is a solid liqued or gas an example of homogeneous mixter that is a solid Steel is a homogenous mixture of iron, carbon, and other metals. air is a homogenouse mixture of gas Sea water is a homogenous mixture

    asked by Layal on October 11, 2006
  55. Science

    A mixture is prepared by adding 100 ml of 0.10M Na2CrO4 to 100.ml of ).10 N AgNO3. A precipitate forms in this mixture. The precipitate is separated from the mixture by filtration. Question: What quantity of solid product is produced?

    asked by Natasha on November 2, 2012
  56. science

    The lanthanide metal europium (Eu) forms a crystalline solid with a cubic unit cell of edge length 3.854 Å. The density of europium is 4.408 g cm-3. The crystal structure of solid europium is a. body-centered cubic b. simple cubic c. face-centered cubic

    asked by ice cream on October 5, 2011
  57. chemistry

    Please help ~~ Because i don't ever know the reaction in organic compound .. Do anyone has the data bank of the organic chemicals ? I cannot find out what are the compound in the reaction with it ~~ 1. What do butylamine give when it is dissolved in water

    asked by initial D on December 4, 2008
  58. chemistry

    a mixture containing only sodium chloride and potassium chloride has a mass of 4 g. when this sample is dissolved in water and excess silver nitrate is added a white solid forms. after filreation and drying the solid silver chloride has the mass of

    asked by kelly on September 25, 2010
  59. Chemistry

    If you are a mixture of ammonium chloride, barium sulphate and sodium chloride how would you produce a pure dry sample of each of those chemicals for the mixture.

    asked by Jose-Ann on February 25, 2010
  60. chemistry

    LAST QUESTION: When solid NH4NO3 decomposes, a mixture of gases is obtained: 2 NH4NO3(s)--> 4H2O(g) + O2(g) + 2 N2(g) In an experiment, 5.02 g NH4NO3 decomposes completely in a rigid 5.00-L container. What is the total pressure in the container if the

    asked by jin on February 25, 2014
  61. Chemistry

    Pure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were mixed in a sealed flask at room temperature. The flask was placed in a heated water bath and maintained at 323K until equilibrium was established.

    asked by Henry on May 1, 2012
  62. Chemistry

    How many grams of a solid mixture containing strontium chloride would one need to make 558 mL of a 0.100 M strontium chloride solution, if the solid mixture contains 58.6% strontium chloride by weight

    asked by Anonymous on February 24, 2017
  63. mixture problem

    Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

    asked by Marie on May 29, 2008
  64. Chemistry

    At 20.0°C the vapour pressure of pure methanol is 11.8 kPa and that of pure ethanol is 5.93 kPa. A gaseous mixture of methanol and ethanol is cooled and compressed until the first drops of liquid form at 20.0°C and a total pressure of 10.0 kPa. Assuming

    asked by S on November 21, 2017
  65. chemistry

    1 g of a mixture of nahco3 annd na2co3 was heated at 300 deg celsius.the volume of co2 obtained at stp are found to be 112ml.calculate the % of na2co3 in the mixture. please help i am not able to understand!!

    asked by prakhar on January 26, 2017
  66. math

    The boys mixed 10 gallons of the 20% pure lemon juice mix and 10 gallons of the 70% pure lemon juice mix, because they wanted 20 gallons of lemonade at a 40% lemon juice mixture. They thought that because 40% was almost halfway between 20% and 70%, they

    asked by Aya on May 30, 2018
  67. chemistry

    Which phase of ionic compounds are good electrical conductors because the ions are free to carry electrical current? A. Solid B. Liquid C. Gas D. Crystalline I say B

    asked by shana on November 10, 2012
  68. 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?

    asked by matt on March 31, 2014
  69. Calculus I don't understand

    Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = 10 x and y = 5 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded by y=8 x^2, x = 1, and y = 0 , about

    asked by Jackie on December 4, 2013
  70. Chemistry

    hellppp please i have a test on this on mondayy im so screwed A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C is observed to be 0.4010 atm. What is

    asked by yvonne on November 30, 2008
  71. Chemistry

    If 237 mL of O2, measured at STP, are obtained by the decomposition of the KClO3 in a 5.44 g mixture of KCl and KClO3, 2KClO3(s)-->2KCl(s)+3O2(g) what is the percent by mass of KClO3 in the mixture?

    asked by Sam on April 17, 2011
  72. chemistry

    If 267 mL of O2, measured at STP, are obtained by the decomposition of the KClO3 in a 3.33 g mixture of KCl and KClO3, 2KClO3(s) --> 2KCl(s) + 3O2 What is the percent by mass of KClO3 in the mixture?

    asked by kayla on November 17, 2010
  73. algebra

    A vat contains 8080 gallons of a fruit juice mixture that is 30%30% orange juice. How many gallons of the mixture should be drained and replaced with pure orange juice to make the mixture 80%80% orange juice? Round your answer to two decimal places, if

    asked by sam on February 1, 2017
  74. Chemistry

    a student separated a 1.50 g sample of sand mixed with salt and obtained 0.70 g of salt and 0.65 g of sand. what percent recovery of the initial mixture was obtained?

    asked by LicckkyDude on June 26, 2013
  75. chemistry

    Which of the following consists of positive and negative ions bound together and held in place in a crystalline solid? A. Covalent bonds B. Ionic compounds C. Molecular compounds D. Molecules I say B

    asked by shana on November 10, 2012
  76. chemistry

    Consider an isomeric mixture of alkenes of molar mass M=70g/mol. Determine the molecular formula of the alkenes. Hyrogenation of the isomeric mixture produces alkanes. What is the name of the alkane. If the alkenes in the original mixture are in equimolar

    asked by angy on March 19, 2016
  77. Math

    A 75% alcohol concentration mixture of water and alcohol and was made by mixing 30 ml of pure alcohol with 150 ml of original mixture

    asked by Jordan on September 9, 2016
  78. kaimosi Girls High school

    Chem... Ethanedioc acid is used instead of methanoic acid to prepare carbon 2 oxide in the labolatory. It gives equal volume of carbon 2 oxide and carbon 4 oxide. If water is one of the products write a word equation for the dehydration of ethanedioc acid.

    asked by liyayi on December 23, 2015
  79. calculus

    Sketch the region bounded by the curves y = x^2, y = x^4. 1) Find the area of the region enclosed by the two curves; 2) Find the volume of the solid obtained by rotating the above region about the x-axis; 3) Find the volume of the solid obtained by

    asked by Megan on June 10, 2011
  80. Chemistry

    At room temperature, ethanol's density is 0.789 g/mL while water's density is 0.997 g/mL. When a few milliliters of ethanol are added to water, the two liquids mix. A student is given a unknown liquid at room temperature and experimentally determines its

    asked by John on January 16, 2013
  81. chemistry

    A 15.0 g sample consisting of a mixture of silver nitrate and sodium nitrate is dissolved in water. This aqueous mixture then reacts with aqueous potassium chloride to form 3.97 g of solid. Calculate the percent by mass of silver nitrate in the first

    asked by Chuck on May 7, 2016
  82. Density

    If the actual density is 1.2686 g/mL and the determined density by experiment was 1.0275 g/mL, is it reasonable to conclude the obtained product was fairly pure. I am writing a lab report and these were my results and interpretation, but I am not sure if

    asked by CMM on December 1, 2009
  83. chem

    A blood sample contains several different types of cells, each of which contains different combinations of specific ions and molecules. The cells are suspended in water, and the water also contains many molecules and ions. Which term or terms could be used

    asked by K on September 24, 2007
  84. intermediate algebra

    the radiator in Johns car contains 16 L of antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so there will be a mixture of 50% antifreeze.

    asked by brittney on May 7, 2015
  85. Chemistry

    When 4.76 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the temperature of the water rose by 4.73°C. How many grams of each substance was in the mixture?

    asked by Luke on June 27, 2014
  86. Math

    The boys mixed 10 gallons of 20% pure lemon juice mix and 10 gallons of the 70% pure lemon juice mix , because they wanted 20 gallons of lemonade at a 40%lemon juice mixture. They thought that because 40% was almost halfway between 20% and 70%,they should

    asked by Anne on August 14, 2017
  87. chemistry

    A mixture of 0.2 moles of alcohol A and 0.5 moles of alcohol B has a total vapour pressure of 40 mmHg at 297 K. If the mixture obeys Raoult's law, find the vapour pressure of pure B at 297 K given that the pressure of a pure A is 20 mmHg at 297 K.

    asked by jay on April 5, 2016
  88. Math

    180 ml of a mixture of water and alcohol with 90% alcohol concentration is mixed with 70 ml of pure water. what is the alcohol concentration of the new mixture? Do the following: 1) Find out how many ml of alcohol was in the first mixture. (What is 90% of

    asked by julia on April 21, 2007
  89. science

    If solid copper sulfate is mixed with water, what is formed? A mixture, a solvent, a solution or both a mixture and a solution?

    asked by sue on May 12, 2010
  90. Form1/9th grade

    A mixture contains solids: Aluminium,camphor and sugar.Explain how you would obtain a sample of solid sugar from the mixture.

    asked by Benjamin on November 30, 2010
  91. math NEED HELP ASAP

    The Royal Fruit Company produces two types of fruit drinks. The first type is 60% pure fruit juice, and the second type is 100% pure fruit juice. The company is attempting to produce a fruit drink that contains 70% pure fruit juice. How many pints of each

    asked by Anonymous on March 7, 2017
  92. Chemistry

    A 1.85-g sample of a mixture of KCl and MgCl(subscript 2) is treated with excess AgNO(subscript 3) (aq). If 3.82 grams of AgCl(s) are obtained, then what is the percentage by mass of KCl in the original mixture. Can someone tell me what the balanced

    asked by Jon on October 13, 2010
  93. CHEM 1411

    A 0.4550g solid mixture containing CaSO4 dissolved in water and treated with an excess of Ba(NO3)2, resulting in precipitation of 0.6168g of BaSO4. What is the concentration ( weight percent) of CaSO4 in the mixture?

    asked by JACI WINLOW on October 18, 2016
  94. math NEED HELP ASAP

    The Royal Fruit Company produces two types of fruit drinks. The first type is 65% pure fruit juice, and the second type is 90% pure fruit juice. The company is attempting to produce a fruit drink that contains 75% pure fruit juice. How many pints of each

    asked by Anonymous on February 27, 2017
  95. Chemistry

    Asprin(acteyl salicylic acid) can be synthesized by reacting acetic anhydride with salicylic acid. Assume the reaction was run and 1.75 grams of a solid product was obtained. Recrystalization of the 1.75 g mixture yielded 1.50 g of asprin. a. What was the

    asked by teetee on March 8, 2012
  96. chemistry

    A non-metal element which lies in the third row of the Periodic Table forms a gaseous compound H2Y with hydrogen and the compound Li2Y with lithium, which has a solid crystalline structure and a high melting point (greater than 900 °C). • A non-metal

    asked by joleen on January 30, 2011
  97. CHEM

    You are a researcher for a golf club manufacturer. You are given two identical looking cubes of a metal alloy. You are informed that they are made of the exact same material, but one is a crystalline, while the other is amorphous. It is your job to

    asked by K on November 29, 2007
  98. Math please

    A 75% alcohol concentration mixture of water and alcohol was made by mixing 30ml of pure alcohol with 150 ml of original mixture of water and alcohol. what was the alcohol concentration of the orignal mixture The amount of water has not changed. Since the

    asked by Carllll needs help on April 13, 2007
  99. Organic Chemistry

    Suppose 5.00 gram of a mixture of aspirin, caffeine, and acetanilide was dissolved in enough solvent (methylene chloride) to make a total of 100.00 mL volume. You took 10.00 mL from it and isolated its components using the same protocol you did in the lab.

    asked by David on June 27, 2016
  100. Chemistry

    A 2.35 g sample of a substance suspected of being pure gold is warmed to 72.2 ∘C and submerged into 15.5 g of water initially at 24.1 ∘C. The final temperature of the mixture is 26.5 ∘C. Part A What is the heat capacity of the unknown substance? Part

    asked by Jo n on October 30, 2016