1. Physical chemistry

    What is the percent by weight of nacl if 1.75gm of nacl is dissolved in 58.5gm of water.

    asked by Laiba on September 18, 2017
  2. Chemistry

    Calculate the mass percent of a NaCl solution in which 158g of NaCl is dissolved in 3.81L of water at 25 ∘C (density = 0.997 g/mL).

    asked by Alicia Estrada on June 17, 2015
  3. CHEMISTRY

    SUppose that not all of the NaCl dissolved in the water in step 7, EXPLAIN this error would affect your reported percent of: NH4Cl NaCl SiO2

    asked by Anonymous on September 20, 2017
  4. chemistry

    calculate the mass/volume percent of a NaCl solution in which 127g of NaCl is dissolved in enough water to give a total volume of 2.69L.

    asked by lima on October 17, 2013
  5. chem

    the mass/volume percent of a NaCl solution in which 136 g of NaCl is dissolved in enough water to give a total volume of 4.90 L .

    asked by mar on August 1, 2015
  6. Chemistry

    You are given a bottle of dry NaCl. Explain the procedures required to make 900mL of a 0.5M NaCl solution. The formula weight of NaCl is 58.4g/mole.

    asked by Ana on February 7, 2016
  7. Chemistry

    A mass of 0.630 g of NaCl is dissolved in 525 g of water. CAlculate the molality. mass of NaCl= 0.630g mass of H20= 525g molar mass of NaCl= 58.44 This is what i did it keeps telling me the answer is wrong. Convert grams to moles of NaCl 0.630 * 1 mol

    asked by Saira on May 22, 2009
  8. Chemistry

    Calculate the mass/volume percent of a NaCl solution in which 182g of NaCl is dissolved in enough water to give a total volume of 4.78L . Would I do 182/4780ml *100?

    asked by Jennie on March 3, 2015
  9. chemistry

    Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water, determine the constants m and b in the equation Molarity = m⋅density + b that relates the NaCl molarity to the NaCl(aq) density. Take the density

    asked by Anonymous on May 28, 2013
  10. Math

    How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

    asked by Anonymous on March 26, 2013
  11. Math(Please help) Thank you

    How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

    asked by Anonymous on March 26, 2013
  12. chemistry who helps me for me

    A 0.887g sample of a mixture of nacl and kcl is dissolved in water , and the solution is then treated with an excess of agn03 to yield 1.913g of agcl. Calculate the percent by mass of nacl in the mixture 1.913/143g/mol = 0.01337 who helps me

    asked by Ferda on January 19, 2014
  13. chemistry

    a mixture of NaCl and sucrose that has a combined mass of 10.20g is dissolved in enough water to make up to a 250mL solution. osmotic presdure of solution is 7.32atm at 23℃. calculate the mass percent of NaCl

    asked by susan on February 26, 2015
  14. Physical Science Please Help!

    Table salt, sodium chloride, has the formula NaCl. A weight of 58.44 grams of table salt contains 1.0 mole of NaCl molecules. How many moles of NaCl are contained in 29.22 grams of NaCl?

    asked by Dawn on February 5, 2013
  15. chemistry

    Physicain elects to re-hydrate the patient br intravenous(IV) administration of 2.0 L of 0.45% (w/v) of NaCl. 0.45%9w/v) = 0.45g/100ml A.How many grams of NaCl were given? B.How many moles of Nacl were given? C.What is the molarity of the NaCl solution?

    asked by Monica on May 13, 2013
  16. Chemistry

    I had to perform an experiment for the freezing point depression in which we had to determine the freezing points of water as a pure solvent, sodium chloride, sucrose, and ethylene glycol. We had to work with a partner so I completed the experiment for

    asked by Hannah on February 20, 2012
  17. Chemistry

    If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity and higher osmotic

    asked by Anonymous on February 25, 2009
  18. Chemistry

    Separation of a mixture Lab - SiO2, NaCl, NH4Cl So step #7 was: Carefully pour off (decant) the liquid into the second evaporation dish, Adding deionized water in small amounts to the first dish and to stir it, and pour the liquid again into the second

    asked by Abby on September 24, 2015
  19. chakraborty

    arrange the following solutions in order of decreasing specific conductance 0.01 M NaCl,0.05 M NaCl,0.1 M NaCl, 0.5 M NaCl

    asked by Raja on May 12, 2016
  20. Gen Chem

    A mixture of NaCl and sucrose (C12H22O11) of combined mass 10.2 g is dissolved in enough water to make up a 250 mL solution. The osmotic pressure of the solution is 8.29 atm at 23°C. Calculate the mass percent of NaCl in the mixture.

    asked by Brittany on February 4, 2016
  21. chemistry

    If 12.45gm NaCL is dissolved in 115ml of water, what is the density of NaCL?

    asked by Twynna on January 31, 2011
  22. chemistry

    If 12.45gm NaCL is dissolved in 115ml of water, what is the density of NaCL?

    asked by Twynna on February 2, 2011
  23. Thermochemistry

    Compute the change in temperature when 1.1 g of sodium chloride is dissolved in 200.0 mL of water initially at 28 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl. Species ΔfH (kJ/mol) NaCl(aq)-407.3 NaCl(s) -411.2

    asked by LaurenB on December 2, 2011
  24. chemistry

    a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl. whats wrong 25 g NaCl 1.0 L solution 1.0 g/mL 25

    asked by Kyle on January 6, 2015
  25. chemistry

    Are there formulas to solve the following problem? Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how

    asked by alma on February 6, 2015
  26. Chemistry

    Product reactions results. Tell if a chemical reaction or physical reaction occurs when mixing these two substances. NaCL+ Distilled water = NaCL+ Vegetable oil= NaCL+ Vinegar= NaCL+ Citric acid= NaCL+ NaOH= I know what happens when a chemical reaction and

    asked by somayee on September 21, 2018
  27. science

    Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?)Grams of NaCl

    asked by queen on September 14, 2013
  28. Please help with Physical Science 2!! Confused!

    Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?) Grams NaCl

    asked by Ella on February 5, 2013
  29. bio

    You have a sample of NaCl that contains 100 mg/ml NaCl. You are trying to perform an reaction that requires 10ml of 20 mg/ml. Enter in the correct amount (in ml) of Stock NaCl solution you need to use to make 10ml of 20 mg/ml NaCl

    asked by mina on March 2, 2011
  30. Chemistry

    A sample of a mixture containing only sodium chloride (NaCl) and potassium chloride (KCl) has a total mass of 4.000g. When this sample is dissolved in water and excess silver nitrate is added a white precipitate (AgCl) forms. After filtration and drying,

    asked by Steve on January 27, 2007
  31. science

    answer to water conductance lab on conductivity of solutionof 500ppm of nacl,1,000 ppm of nacl,5,000ppm og nacl and 10,000ppm of nacl

    asked by dkh on July 28, 2011
  32. CHEMESTRY

    Which of the following solutions would have the lowest boiling point? A.1.0 M NaCl B.2.0 M NaCl C.3.0 M NaCl D.4.0 M NaCl

    asked by SANDRA on November 3, 2011
  33. Chemistry

    A solution is made by dissolving 0.100 mol of NaCl in 5.35 mol of water. What is the mass % of NaCl? So far, I have determined molecular weight of NaCl (58.44 g/mol) multiplied by 0.100 mol = 5.844g NaCl, and mw of H2O (18 g/mol) = 96g H20. I thought mass

    asked by Jon on March 26, 2010
  34. chemistry

    Record and calculate the following masses: (a)mass of empty beaker: 47.420g (b)mass of beaker plus Na₂CO₃:47.920g (c)Mass of Na₂CO₃:0.5g (d)mass of beaker plus NaCl:47.438g (e) Mass of NaCl (g):0.018g **I need help with these questions below** 2.

    asked by chelsea on June 7, 2012
  35. college chem 2

    Calculate the deltaS univ for the dissolving of NaCl at room temp. S' NaCl(s)=72.11 J/k*mol; S' NaCl(aq)=115.5 J/k*mol;deltaH' NaCl(s)=-411.12 kJ/mol; deltaH' NaCl(aq)=-407.27 kJ/mol.

    asked by shel on March 24, 2014
  36. CHEMISTRY

    1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

    asked by Allison on February 3, 2017
  37. Chemistry

    1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

    asked by A on February 3, 2017
  38. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?

    asked by Anonymous on February 11, 2011
  39. Chemestry

    How many grams of NaCl would you need to make 500 ml of a 100 mM solution? the atomic weight of NaCl is 35. I was not given a way to solve this by my teacher.

    asked by Toddria A. Estes on March 15, 2016
  40. chemistry

    What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl

    asked by maribe on June 19, 2014
  41. chemistry

    What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl?

    asked by miranda on February 21, 2014
  42. chemistry

    Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.

    asked by Debbie on September 24, 2012
  43. science-chemistry

    Calculate the number of moles of solute present in 450. g of an aqueous NaCl solution that is 0.565 % NaCl by weight

    asked by joe on June 12, 2014
  44. Biology

    Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.

    asked by Debbie on September 24, 2012
  45. Chemistry

    I have a certain concentration of NaCl (in mg/L). I have to convert it to ppm Na+. I read some of the previous posts, and I understand that if I don't know the density, I should assume that 1ppm = 1mg/L. Does this also apply to ppm Na+ since there is 1 Na+

    asked by Maggie on February 20, 2007
  46. bio/chem

    how do i make percent solutions w/v starting with pure NaCl and distill water. eg 100ml of a 1% NaCl solution

    asked by Amber M on May 13, 2010
  47. Stoichiometry

    Determine the mass % (m/m) of a NaCl solution if 58.5 grams of NaCl was dissolved in 50 ml of water (assume the density of water to be 1.0 g/ml).

    asked by Sarah on January 13, 2017
  48. chemistry

    If the solubility of NaCl at 25 degrees Celsius is 36.2 g/100 g H2O, what mass of NaCl can be dissolved in 200.0 g of H2O?

    asked by colleezy on March 14, 2011
  49. chemistry

    1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?

    asked by andi on August 20, 2011
  50. chemistry

    Calculate the molarity of each. a. 1.50 mole of NaCl in 8.00 L of solution 0.188 M NaCl b. 270 mg of NaCl in 3.00 mL of solution 90 M NaCl

    asked by krystal on February 22, 2012
  51. chemistry

    The solubility of NaCl at 17 celsisus degrees is 39 g per 100 ml water. If 83 g of NaCl is dissolved in 250ml of water at the same temperature, the resulting solution is: a)unsaturated; b)saturated; c)supersaturated

    asked by Ngoc Nguyen on December 14, 2014
  52. Chemistry

    will a red blood cell undergo crenation, hemolysis, or no change in each of the following solutions? 1% (m/v) glucose 2% (m/v) NaCl 5% (m/v) NaCl .1% (m/v)NaCl

    asked by Curlyqty on May 9, 2011
  53. chemistry

    An aqueous solution of nacl has a mole fraction of 0.21. What is the mass of NaCl dissolved in 100.0 mL of solution?

    asked by Ashley on February 13, 2011
  54. Chemistry

    what is the mass of two moles of NaCl? You look up the exact numbers on the periodic table or some other chart. I will use approximations. 1 mol NaCl = 1 Na + 1 Cl = 23 + 35.5 = 58.5 grams. 1 mols NaCl, then, is 2 x 58.5 = ?? g.

    asked by Dennis on February 5, 2007
  55. chemisrty

    Q4) Suppose you prepare 950 mL of a solution by dissolving 100 grams of NaCl in 900 mL of water. Assuming the density of pure water to be 1 g/mL, answer the following questions with regards to this solution: a) What is the mass percent of water in this

    asked by lyan on January 16, 2012
  56. chemistry

    If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols NaCl on 58.5 gg NaCl. Mols

    asked by brett on June 14, 2006
  57. Analytical chemistry

    a .2280g sample contained only NaCl and KBr. it was dissolved in water and titrated with a 0.04799M of AgNO3. complete titration of both halides was found to require 51.27mL of the AgNO3 solution. Calculate the weight percent of Cl in the solid sample.

    asked by Lana on April 7, 2013
  58. Chemistry

    A chemist wants to make 500.0 mL of 0.215M NaCl. What mass of NaCl is needed? would it be .500 L x .215 M = .1075 mol NaCl .1075 mol x 58.44g NaCl = 6.28g NaCl needed

    asked by Anonymous on September 13, 2016
  59. Biology

    What happened if you put the Elodea leaf cells in a solution of 0.5% NaCl,1.8% NaCl and 0.9%NaCl?

    asked by Ivy on July 23, 2011
  60. Chemistry

    The molar solubility of magnesium chloride in water is 0.23 M. What is the numerical value for Ksp for MgCl2? Suppose you wanted to reduce the concentration of dissolved Mg2+ to 0.00537 M by adding NaCl. What concentration of NaCl would you need?

    asked by Lily on April 28, 2016
  61. chem

    The (aq) solution with the lowest freezing temperature would be which of the following: 0.010M NaCl 0.020M NaCl 0.030M C6H1206 0.030M NaNO3 0.030M HC2H3O2 The NaCl and the NaNO3 break up into two particles each. The sugar does not, and the acetic acid

    asked by anonymous on February 5, 2007
  62. Chemistry

    A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 47.40 mL of 0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the

    asked by DeJanee on October 2, 2013
  63. Chemistry

    A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 37.20 mL of 0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the

    asked by Woof on November 30, 2017
  64. Chemistry

    Determine the number of moles of NaCl in the solution. Measured Mass of NaCl: 11.69g Measured Vol of Water: 100mL Molar Mass of NaCL: 58.44g/mol 11.69gNaCL/58.44g/mol = 0.20 mol NaCl Do I then to multiply my answer by 100ml? 0.20 x 100=20.00mol NaCl?

    asked by Rose on March 17, 2017
  65. Chemistry

    I need to know how to dilute a 1L IV bag of 0.45% NaCl with 3.5% NaCl water to make it a drinkable 0.9% NaCl

    asked by Emma on December 9, 2009
  66. Chemistry

    A sample of a mixture containing only sodium chloride (NaCl) and potassium chloride (KCl) has a total mass of 4.000g. When this sample is dissolved in water and excess silver nitrate is added a white precipitate (AgCl) forms. After filtration and drying,

    asked by Steve on February 3, 2007
  67. science(chemistry)

    1) the weight of water in 1litre of 2M nacl solution of density 1.117g/ml. 2)there are two common oxides of sulphur one of which contains 50percent oxygen by weight the other almost 60 percent.the weight of sulphur which combine with 1g o2 are in ratio

    asked by akshar on June 6, 2011
  68. chemistry

    If 4.8 liters of a 2.8 M solution of NaCl then the solution will have *Blank* moles of NaCl dissolved in it.

    asked by Griffin on May 28, 2014
  69. CHEM HELP

    what is the theoretical mole ratio- NaCl to NaHCO3 How do you determine the percentage error of an experimental mole ratio It would be easier for us to help you if we had the entire problem instead of just parts of it. However, from the standpoint of Na,

    asked by CHEMISTRY HELP on January 2, 2007
  70. Chemistry

    Naoh (aq) + HCl (aq) --> NaCl (aq) + H2O (l) Using the dT determined in part 1, calculate the heat capacity of the calorimeter. Enthalpy of reaction= -58.3 kj/mol, Cs (NaCl = 3.91j/g C)density of 1 M NaCl = 1.037g/mL. dT= 12.88 degrees Celcius.

    asked by Annie on November 13, 2012
  71. chemistry

    0.550g sample containing only nacl and kbr.it dissolved in water and titrated with a 0.0322M solution of agno3. complete titration of both halides was found to require 30.45ml of agno3 solution. calculate the weight percent of cl in the solid sample.

    asked by jacque on March 28, 2009
  72. Chemistry

    How many grams of NaCl should be added to 1 L of water to make an isotonic solution? (molecular weight of NaCl= 58.5) Can someone please explain to me why the answer is 9 grams.

    asked by Jon on January 31, 2012
  73. Chemistry

    If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? I found the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I divided 10g CaCl2/111.0g CaCl2 I divided 10g

    asked by Casey on July 12, 2010
  74. chemistry

    Concentrated hydrochloric acid has specific gravity 1.18 and 36% hcl weight. What volume of concentrated hcl must be diluted to give 50gm of 10 percent My calculation 50gm x 10% = 5gm 5gm x 36.46 =182.3/ 0.36 = 506 / 1.18 = 429 ml I am not sure answer. Who

    asked by Fai on August 11, 2012
  75. Physics

    The freezing point depression of a .100 m solution of NaCl solution is .34C. Calculate the percent dissociation of NaCl.( Kf for water=1.86) Please help

    asked by Sammy on August 28, 2009
  76. Chemistry

    Thanks in advance. A student prepared a solution of NaCl by dissolving 55.0 grams of sodium chloride in 570 mL of water. What is the percent by mass of the NaCl solution?

    asked by Dalal on February 13, 2018
  77. Scient

    (NaCl) solutions used in intravenous injections have a concentration of 0.90% NaCl (mass/volume). 4.5grams of NaCl are needed to prepare 500.0 mL of this solution How much water must evaporate from this solution to give a solution that is 9.0% NaCl

    asked by Tina on June 18, 2016
  78. chemistry

    80g of NaCl are dissolved in 400g H2O. if the vapor pressure of the water is 40 mmHg , what is the vapor pressure of NaCl above the solution?

    asked by sheila on February 12, 2013
  79. Chemistry Who step by step

    A 0.8870g sample of a mixture of nacl and nan03 is dissolved in water, and the solution is then treated with an excess of AGN03 to yield 1.913g of agcl. Calculate the percent by mass of the nacl in the mixture. 1.913g / 143 = 0.0133 x/58 ( 0.8870g -x) y/85

    asked by Ken on May 11, 2014
  80. science

    If 20g of sodium chloride is dissolved in 100 cm3 of water at 20c is the solution saturated? I looked up the solubility of NaCl in my copy of The Merck Index and it is listed as 1 gram NaCl dissolving in 2.8 mL water at 25 degrees C. Converting that means

    asked by Anonymous on January 23, 2007
  81. science

    Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment.... a.calculate mass of sodium chloride needed to prepare solution. (0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g NaCl....is that right?

    asked by Ally on September 17, 2009
  82. Chem

    1) Which solution will have the lowest OH- A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest base? A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 3) Which aqueous solutions are acidic? A) Na2CO3 and NaHCO3 B) NaCl and

    asked by Timothy on April 6, 2014
  83. chemistry

    calculate the mass, in grams, of NaCl present in each of the following solutions. 6.25 g of 11.5% NaCl solution 452 g of 12.3% NaCl solution please show me how to do these. Thanks.

    asked by pat on April 29, 2011
  84. chemistry

    What NaCl concentration results when 279 mL of a 0.640 M NaCl solution is mixed with 427 mL of a 0.490 M NaCl solution?

    asked by lee on April 17, 2013
  85. Chemistry 314

    What NaCl concentration results when 254 mL of an 0.880 M NaCl solution is mixed with 412 mL of a 0.450 M NaCl solution?

    asked by Amanda on August 26, 2012
  86. Chemistry

    I am doing a lab online and have no clue on how to get started with the following questions? Please Help me! 1. Calculate and record the following (in grams): (a) mass of NaCl by subtraction of other components: (b) measured mass of NaCl after boiling away

    asked by Melissa on October 23, 2010
  87. chemistry

    a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl. help please 25g/58.44g NaCl=.428 mol 1000 grams

    asked by an on January 6, 2015
  88. Chemistry

    1. As a research chimst, you are intrested in studying the extent and type of interactions in aqueous salt solution. As part of this study, you weight three samples of NaCl and dissolve each in 1.000kg H2O. You then measure the freezing temp. of each

    asked by Liz on March 6, 2012
  89. Chemistry

    If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? (the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I found individual molar mass of: Ca-40.08 Cl-35.45 Na-22.99

    asked by Casey on July 11, 2010
  90. chemistry

    In a laboratory experiment, a 18.0 ml sample of NaCl solution is poured into an evaporating dish with a mass of 24.00 g. The combined mass of the evaporating dish and NaCl solution is 37.15g. After heating, the evaporating dish and dry NaCl have a combined

    asked by Allyse on October 9, 2010
  91. college chemistry

    a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

    asked by Kyle on January 6, 2015
  92. science

    a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

    asked by Kyle on January 6, 2015
  93. science

    a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

    asked by Kyle on January 6, 2015
  94. Chemistry

    Express 2.5M NaCl as a percent solution. what is the molar concentration of a 10% NaCl solution?

    asked by confuzzled on September 18, 2011
  95. ap chem

    I'm supposed to find the mass of NaCl in 1 L & the mass of H20 in 1 L. I'm given NaCl solution. 1% by mass. The Density is 1.071 g/mL. I know the answer for NaCl is 10.71 g, but I don't know where to start to get to this. Could you lead me in the right

    asked by dylan on February 24, 2011
  96. Chemistry

    The vapor pressure of pure water at 30C is 31.8Torr. What is the vapor pressure of a solution of NaCl dissolved in water when the mole fraction of NaCl is 0.111? I am wondering if this would be correct. 0.11*31.8= 3.5 Torr Is there another way to solve

    asked by Christopher on January 29, 2017
  97. chemistry

    The solubility of NaCl in water is 35.7g NaCl/100g H2O. Suppose that you have 500.0g of NaCl. What is the minimum volume of water you would need to dissolve it all? (Assume that de density of water is 1.0 g/mL.)

    asked by Jazmin on February 19, 2011
  98. chemistry

    The solubility of NaCl in water is 35.7g NaCl/100g H2O. Suppose that you have 500.0g of NaCl. What is the minimum volume of water you would need to dissolve it all? (Assume that de density of water is 1.0 g/mL.)

    asked by Jazmin on February 19, 2011
  99. chemistry

    As a research chimst, you are intrested in studying the extent and type of interactions in aqueous salt solution. As part of this study, you weight three samples of NaCl and dissolve each in 1.000kg H2O. You then measure the freezing temp. of each solution

    asked by Frank on May 3, 2015
  100. chemistry

    The solubility of NaCl in water is 35.7 g NaCl/100 g H2O. Suppose that you have 500.0 g of NaCl. What is the minimum volume of water you would need to dissolve it all? The density of water is 1.0 g/mL.

    asked by Maria on January 17, 2011