1g of mixture of na2c03 and k2c03 was made upto 250ml is aqueous solution . 25ml of this solution was neutralized 20ml of hcl of unknow concentration. The neutralized solution required 16.24ml of 0.1N AGN03 for precipitation. Calculate a) the

41,913 results
  1. Chemistry

    Calculate the solid needed to make a 250ml solution that is 0.34M in sodium cation, using sodium sulfate decahydrate. I came up with 13.685g. but how do I make that into 250ml of a solution that is0.34M in sodium cation?

  2. Chemistry

    You are a work study student in our chemistry department. Amy, your supervisor has just asked you to prepare 250ml of 2.00M H2SO4 solution for tomorrow's undergraduate experiment. The Stock Solutions cabinet is under the Stockroom Explorer. You will find

  3. Chemistry (Re-post)

    A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. So this is my working out for this section, Step 1. Moles of CoSO4 = 0.0001694mg * 25mL *

  4. Chemistry

    Which one of the following pairs of 0.100 mol L-1 solutions, when mixed, will produce a buffer solution? A. 50. mL of aqueous CH3COOH and 25. mL of aqueous CH3COONa B. 50. mL of aqueous CH3COOH and 25. mL of aqueous HCl C. 50. mL of aqueous NaOH and 25. mL

  5. Chemistry

    Determine the pH of a solution made by diluting 25mL of 6.0 M HCl until the final volume of the solution is 1.75 L

  6. 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

  7. chemistry

    5.85g of sodium chloride is dissolved in 250mL of solution. Calculate: a)the molarity of the solution b)the mass percentage of the solute. can we use the given volume(i.e,250mL as total volume of the solution or volume of water in this problem?

  8. Chem--buffers

    Explain why a mixture formed by mixing 100 mL of 0.100M CH3COOH and 50 mL of 0.100M NaOH will act as a buffer? in adittion to this, how do you identify if a an aqueous solution is a buffer solution, such as a solution with an acid and a base, but no common

  9. Chemistry

    An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to a total solution volume of 2.00 liters. If the molarity of the solution is .359 M and the molality of the solution is .354, what is the mass percent of the solution?

  10. Math

    Calculate the morality of a solution made by mixing 250ml of 0.75M H2SO4 with 400ml of 2.5MH2SO4

  11. chem 101

    State,in a stepwise fashion how 250mL of a 0.100m sodium hydroxide solution can be made from sodium hydroxide pellets. .. Then calculate the needed volume of solutions above. ,in order to make a diluted 5L solution of 0.05m sodium hydroxide

  12. Chemistry Damon

    1g of mixture of na2c03 and k2c03 was made upto 250ml is aqueous solution . 25ml of this solution was neutralized 20ml of hcl of unknow concentration. The neutralized solution required 16.24ml of 0.1N AGN03 for precipitation. Calculate a) the k2c03 is

  13. Chemistry

    State whether each of the following aqueous solutions would be acidic, basic, or neutral. Include appropriate net-ionic equations to show why a given solution is acidic or basic. a) NaNO3 b)KC6H5CO2 c)50:50 mixture of C6H5CO2H+KC6H5CO2 d)(CH3NH3)Cl e)50:50

  14. chemistry who step by step for me

    1.2g mixture of na2c03 and k2c03 was dissolved in water to form 100cm3 of solution, 20 cm3 of this solution required 40cm3 of 0.1 hcl for neutralization. Calculate the weight na2c03 and k2c03 in the mixture? My calculation 20cm3/100cm3 = 0.2 x/53 +

  15. Chemistry

    State whether each of the following aqueous solutions would be acidic, basic, or neutral. Include appropriate net-ionic equations to show why a given solution is acidic or basic. a) NaNO3 b)KC6H5CO2 c)50:50 mixture of C6H5CO2H+KC6H5CO2 d)(CH3NH3)Cl e)50:50

  16. chemisty lab

    determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

  17. science-chem

    first, thanks so much Bob for helping me!!!! 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

  18. 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

  19. Chemistry

    A 100.0 mL sample of a 0.200 molar aqueous solution of K2CrO4 was added to 100.0 mL of a 0.100 molar aqueous solution of BaCl2. The mixture was stirred and the precipitate was collected, dried carefully, and weighed. How many grams of precipitate should be

  20. Chemistry

    Write the following into a balanced equation. a) When a mixture of copper (II) oxide and carbon is heated, elemental copper forms and carbon monoxide evolves into the atmosphere. b) When a concentrated solution of sodium hydroxide is added to an aqueous

  21. Chem

    An aqueous KNO3 solution is made using 82.7 grams of KNO3, diluted to a total solution volume of 1.50 L. The density of this solution is 1.05 g/mL. What is the molality of this solution?

  22. chemistry Damon helps me step by step

    1g of mixture na2c03 and k2c03 was mole made upto 250ml is aqueous solution. 25ml of this solution was neutralized. 20ml of hcl of unknown concentration. The neutralized solution required 16.24ml of 0.1N AGNo3 for precipitation, Calculate a) the % k2c03 is

  23. chenistry

    25ml of a solution of na2c03 having a sepcific gravity of 1.25g solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N h2s04 that will be compltetly neutralized by 125g of na2c03 solution. In

  24. chemistry

    0.50g of mixture of k2c03 and li2c03 requires 30ml of a 0.25N HCL solution for neutralization. What is the percentage composition of the mixture? The answer k2c03 96% The answer li2c03 4% I want Bob step by step explain. I do not still understand x/69 +

  25. chemistry

    25ml of a solution of na2c03 having a specific gravity of 1.25g ml required 32.9ml of a solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N Hes04 that will be completely neutralized by 125g of

  26. chemistry

    Which of the following statements about boiling points are true? A. The boiling point of 0.1 m NaF(aq) is lower than the boiling point of 0.1 m methanol(aq). B. The boiling point of a 0.5 m aqueous solution of LiOH is the same as the boiling point of a 0.5

  27. Chem

    I am doing a lab concerning pH... Why is it necessary to allow a mixture of 25mL of a 0.1M HCl solution with 20mL of a 0.08M NaOH solution to cool to room temperature? (I don't know if the actualy concentrations matter) Does it affect the pH? Yes,

  28. Biochemistry

    Calculate the ph of a 1L solution to wgich has been added 25ml of 10mM acetic acid and 25ml of 30mM sodium acetate

  29. chemistry

    determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

  30. chemistry

    A hydrochloric acid So of concentration 1mol/l and a solution S1 of concentration C1= 2×10^-2 mol/l to be prepared from So. The available materials are given below: ● Volumetric pipet: 5ml, 10ml, 20ml ● Beakers: 100ml, 250ml, 500ml ● volumetric

  31. Chemistry

    Convert the information described below into balanced equation: (a) When a mixture of copper(II) oxide and carbon is heated, elemental copper forms and carbon monoxide evolves into the atmosphere. (b) When a concentrated solution of sodium hydroxide is

  32. Chemistry

    Which of the following statements about boiling points are false: A. the boiling point of 0.1 m KF(aq) is lower than the boiling point of 0.1 m ethanol(aq) B. the boiling point of a 0.5 m aqueous solution of NaOH is the same as the boiling point of a 0.5 m

  33. Chemisty

    Based on equation: 2MnO4¬¬(-) + 6H(+) +5H2O2 → 2Mn(2+) +8H2O + 5O2 A 50.0 mL solution of hydrogen peroxide of unknown concentration was diluted with 1.00L of water. 25mL of this diluted solution was then titrated with acidified potassium permanganate;

  34. 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

  35. Chemistry

    Please help me Sketch a separation scheme showing how you would separate the following two component mixture: m-nitroaniline and hexanol. All the substances are soluble in ether. You can use any of the following solutions in your separation: aqueous

  36. Chemistry

    When a clear aqueous solution of calcium chloride (CaCl2) is mixed with a clear aqueous solution of sodium carbonate (Na2CO3), a white solid precipitate forms. What happens to the mass of the mixture after the solid precipitate forms? Choose the best

  37. Science HELP

    state whether each substance is a mechanical mixture, a suspension, or a solution. My answers are at the bottom. a)green relish b)soda pop in a glass c)bubble tea d)traditional Aborigial paint made of red orchre and grease my answers= a)suspension

  38. College Chemistry

    1) A 25mL sample of the .265M HCI solution from the previous question is titrated with a solution of NaOH. 28.25mL of the NaOH solution is required to titrate the HCl. Calculate the molarity of the NaOH solution. 2) A 1.12g sample of an unknown monoprotic

  39. Chemistry

    Sammy performed the following chemical reaction in a lab Ag(NO3) (aqueous) + NaCl (aqueous) --> AgCl (s) + Na(NO3)(aqueous) where NO3 is the nitrate ion and Cl is chlorine. If Sammy just leaves the reaction container out to evaporate the water, and then

  40. chemistry Who clearlyexplain step by step

    1g of mixture na2c03 and k2c03 was made upto 250ml is aqueous solution. 25ml of this solution was neutralized 20ml of hcl of unknown concentration. The neutralized solution requires 16.24ml of 0.1N agn03 for precipitation Calculate A) the k2c03 is mixture

  41. Chemistry

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of f2s04 7h20 in the sample

  42. chemistry (Pls Bob check for me)

    A 1.2g mixture of na2c03 and k2c03 was dissolved in water to form 100cm3 of s solution, 20cm3 of this solution required 40cm3 of 0.1N hcl for neutralization. Calculate the wieght of na2c03 and k2c03 in the mixture The answer 0.4G My own calculation: na2c03

  43. Chemistry

    A 0.512g sample of CaCO3 is dissolved in 12M HCl and the mixture is diluted to 250ml. A. Calculate the concentration of Ca+2 in the 250ml solution? B. How many moles of Ca+2 are in a 25ml sample of th 250ml solution?

  44. chemistry

    25ml of a solution of na2c03 having a specific gravity of 1.25g ml required 32.9ml of a solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N heso4 that will be compltetly neutralized by 125g of

  45. chemistry

    0.50g of a mixture of K2c03 and Li2c03 requires 30ml of a 0.25N hcl solution for neutralization. What is the percentage composition of the mixture? The answer k2c03 96% Li2c03 4% K2c03 weight 138g/mol 138/2 = 69 Li2c03 weight 74g/mol 74/2 = 37 30ml x 0.25N

  46. Chemistry

    Can someone please check my work? Calculate the mass of (NH4)2S2O8 needed to prepare 250mL of a 0.100M solution. I got 5.705 g. Calculate the volume of 2.00M KI needed to prepare 250mL of a 0.200M solution. I got 0.025L or 25mL. Calculate the volume of

  47. chemistry

    A mixture is made using A 50.0 mL sample of a 0.20 M aqueous solution of NAOH was added to 50.0 mL of a 0.20 M aqueous solution of HCl.What is its pH at 25.0 °C?

  48. chem

    7.50gram quantity of a diprotic acid was dissolved in water and made up to exactly 250ml. If 25ml of this solution were neutralized by 11.1 mL of 1.0 M KOH then what is the molar mass of the acid? I did 7.50/5.55x10^-3

  49. chemistry Please who helps me stpe by step

    2gm of mixture hydrated sodium carbonate na2c03 /OH20 and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated, using methyl orange as indicator and 22.5cc of 0.087N hcl were required for neutralization.

  50. chemistry

    5ml of 8N HN03, 4.8ml of 5N HCL and a certain volume of 17M H2s04 are mixed together and made up to 2 liter 30ml of this acid mixture exactly neutralize 42.9ml of na2c03, 10 H2O in 100ml of water. Calculate the amount of sulphate 10m in gm present in

  51. chemistry

    5ml of 8N Hn03, 4.8ml of 5N hcl and a certain volume of 17M h2s04 are mixed together and made up to 2 liter. 30ml of this acid mixture exactly neutralizes 42.9ml of na2c03, 10 h20 in 100ml of water .Calculate the amount of sulphate ion in gm present in

  52. Chemistry

    8.4 g of a mixture of potassium hydroxide and potassium chloride were made up of 1 litre of aqueous solution. 20 cm of this solution required 24.2 cm of 0.1 m nitric acid for neutralisation. calculate the percentage by mass of potassium chloride in the

  53. Science (please help me)

    I have 2 question on science 7. please help me. 1.state whether each substance is a mechanical mixture, a suspension, or a solution. My answers are at the bottom. a)green relish b)soda pop in a glass c)bubble tea d)traditional Aborigial paint made of red

  54. chemistry

    Select only the True statements about buffer systems. Select all that are True. 1. Starting with NH3(aq) and adding a small amount of HCl(aq) will make a buffered solution. 2. The blood buffer, among other things, is supported by carbonic acid and its

  55. Science

    I have posted this question before and I have waited for 3 hours and no one is helping me. Please help me. I have 2 questions. 1.state whether each substance is a mechanical mixture, a suspension, or a solution. My answers are at the bottom. a)green relish

  56. chemistry

    What is the molarity (moles per liter) of an aqueous solution that is prepared by dissolving 5.58g NaOH (MW=40) in enough water to make 250mL of solution?

  57. Chemistry pls clearly step step for me

    2gm of mixture hydrated sodium carbonate and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated using methyl orange as indicator and 22.5cc of 0.087N hcl were required for naturalization. calculate the

  58. chemistry Damon check my calculation

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of this solution required 20ml of n/10 kmn04 solution for complete oxidation. Calculate the

  59. Damon check step by step

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of f2s047h20 in the sample

  60. math who helps me step by step

    25g of a sample of ferrous sulphate was dissolved in water contains dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculte the percentage of f2s04 7 h20 in the sample My

  61. science

    number of grams of MgCl2 needed to prepare a 250ml of a 12% aqueous solution with 1.1g/ml density

  62. chemistry who helps me step by step

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. calculate the percentage of fe204 7h20 in the sample.

  63. physics

    round of the following digits- 3.65*105(upto are place of decimal) 0.882026(upto three significant figures) 311.299(upto four significant figures) 4.783(upto two significant figures)

  64. math steve for your help

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of fes047h20 in the sample

  65. Chemistry

    Question: you have a clear, colorless aqueous sample in a beaker that contains either CO2^-2(aq) or C^-1(aq) or a mixture of both ions. the following aqueous reagents are available: NaCl, HNO3, and AgNO3. describe a procedure that will allow the

  66. chemistry

    analysis of a mixture of carbonate and bicarbonate: I did an experiment where 2.306g of unknown was diluted with distilled water to 250ml. Then 3 25mL samples of this unknown were titrated with .0663 M HCl and end point volumes were: 41.12mL, 41.00mL and

  67. CHEMISTRY!!

    Hi I need help doing this question! Thank you in advance! Suppose that a mixture contains 1,4-dimethoxybenzene and benzoic acid. An experiment is performed in which this mixture is dissolved in diethey ether, the solution is mixed with aqueous soium

  68. chemistry

    Assuming the density of a 5% acetic acid solution is 1g/ml, determine the volume of the acetic acid solution necessary to neutralize 25ml of 0.1m naoh also record this calculation on your report My calculation 1g/ml x 1000ml x 0.05/61 = 0.81M 0.81m = 25ml

  69. Qualitative analysis

    Aqueous sodium hydroxide is added to a mixture of an aqueous solution of X with some aluminium alloy. On warming, ammonia gas is evolved. When X is treated with aqueous ammonia, a white precipitate that is soluble in excess aqueous ammonia is obtained.

  70. Chemistry

    Using your 0.0100M oxalate solution and only the equipment and supplies listed below, describe how to prepare a 0.00025M solution of oxalate. Note, you are not allowed to add volumes with pipettes. (example, if you want 20mLs, you can not use a 10mL + 10mL

  71. chemistry

    Using your 0.0100M oxalate solution and only the equipment and supplies listed below, describe how to prepare a 0.00025M solution of oxalate. Note, you are not allowed to add volumes with pipettes. (example, if you want 20mLs, you can not use a 10mL + 10mL

  72. 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

  73. Chemistry

    1. In order to make 250mL of a 0.100 M HNO3 solution from a 15.9 M stock solution, then _____mL if the 15.9 M stock HNO3 solution is needed. M1V2=M2V2, solve for V2. (0.100M * 250mL)/ 15.9M = 1.6mL V2-V1=V 1.6mL-250= -248.4 Did I do this correctly?

  74. chemistry

    An aqueous solution is made using 137g of diluted to a total solution volume of 1.30L .Calculate the molarity.molality and mass percent of solution.*assume a density of 1.08g/ml for the solution..

  75. Chemistry - Science

    A 6.70 g sample of a binary mixture of silver (I) nitrate and sodium nitrate is completely dissolved in water to make a solution. Aqueous barium chloride is then added to this solution in excess to form 3.60 g of silver chloride solid. What is the percent

  76. Chemistry

    An aqueous KNO3 solution is made using 73.4g of KNO3 diluted to a total solution volume of 1.86 L. Calculate the molarity of the solution. (Assume a density of 1.05 g/ml for the solution.)

  77. Chemistry

    The student wanted to be sure he had made Calcium Oxide. He crushed some heated limestone and added water. The mixture got hot. The student cooled the mixture and filtered it. This gave a colourless solution and a white solid that was left in the filter

  78. 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

  79. Chemistry

    Three bottles lost their labels. One contained an aqueous solution of HCl, another an aqueous solution of HNO3, and the third contained an aqueous solution of H2SO4. Write an experimental procedure that would allow you to correctly identify the contents of

  80. Chemistry

    Three bottles lost their labels. One contained an aqueous solution of HCl, another an aqueous solution of HNO3, and the third contained an aqueous solution of H2SO4. Write an experimental procedure that would allow you to correctly identify the contents of

  81. chemistry

    describe how you prepare a 250cm3 of 0.5M solution Na2C03.indicate the various laboratory apparatus you will use

  82. chemistry step by step for me

    0.6g mixture of licl and bal was treated with 40ml of 0.2N agn03 and the excess ag on titration required 25ml of 0.1N kcns for the end point using ferric alum as the indicator. What is the percentage of iodine in the mixture Who helps me step by step for

  83. chemistry

    8.058g x 10-2 kg of washing soda na2co3 10h20 is dissolved in water to obtain 1L of a solution of density 1077.2kg/m3. Calculate the molarity, molality and mole fraction of na2c03 in the solution? who helps

  84. Chemistry

    In an aqueous solution containing a mixture of Zn2+and Mg2+, how would you determine their contents by means of EDTA titration?

  85. chemistry

    describe how you prepare a 250cm3 of 0.5M solution Na2C03.indicate the variouse laboratory apparatus you will use

  86. chemistry

    If a solution is made 0.080 M in Mg(NO3)2, 0.075 M in aqueous ammonia, and 3.5 M in NH4NO3, will Mg(OH)2 precipitate? What is the pH of this solution?

  87. Chemistry

    two aqueous solutions (solution A and solution B) contain different non reactive solutes and have densities of 1.021 g/ml and 1.190 g/ml, respectively. when 40.00 ml of solution A is mixed with 10.00ml of solution B what is the density of the mixture? im

  88. SCIENCE

    (aq) means the solution is dissolved in water used as a solvent. (l) means the COMPOUND (not element, usually) is a pure liquid. (g) means gas and (s) means solid. In the equation below, HCl(aq) + NaOH(aq) -->NaCl(aq) + H2O(l)This means that an aqueous

  89. chemistry

    35.0 mL of an aqueous solution of HNO3 of unknown concentration is titrated with a standard solution made up of 0.453 m NaOH

  90. chemistry

    a 1.009g mixture of the solid salts Na2SO4 and forms an aqueous solution with the precipitation of PbSO4. The precipitate was filtered and dried and its mass was determined to be .471 g. the limiting reactant was determined to be Na2SO4. Write the

  91. Chemistry

    Please help! I'm trying to find the solubility of Ca(OH)2 in .001305 mol/L aqueous NaOH? Saturated solution of Ca(OH)2 in 0.01305 mol/L NaOH. [HCl] = 0.1213 M Volume of HCl = 9.81 mL Volume of Ca(OH)2/NaOH aliquot = 25ml Find: 1. the TOTAL [OH-] in the

  92. Chemistry

    You prepare a solution by dissolving 58.5g of LiCL in 250ml of solution. If the solution is further diluted by having a total volume of 750ml, what is the concentration of the final solution?

  93. chemistry

    You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6. B) you have a 250ml solution of

  94. Chemistry

    You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that compound. The salt is quantitatively transferred into a 250mL volumetric flask and 8mL of 3M H2SO4 is added and then diluted to

  95. Chemsitry

    Tris is an abbreviation for tris (hydroxymethyl) aminomethane, which is a weak base. Calculate how many grams of tris (mw=121.14g/mol) are needed to make 25mL of 0.10M tris solution. Calculate how many mL of 0.25M HCl are needed to convert half of the

  96. chemistry

    You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6. B) you have a 250ml solution of

  97. Chemistry

    You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6. B) you have a 250ml solution of

  98. Science

    Are any of the bellow chemical changes reversible? If yes, then how? Mixture of Lear Nitrate and Potassium Iodide Mixture of Copper Sulphate Solution and Iron Mixture of Copper Sulphate Solution and Sodium Carbonate Mixture of Dilute Hydrochloric Acid and

  99. difficult chemistry

    502g sample of dry cac03 and cacl2 mixture was dissolved in 25ml of 0.925 M HCL solution. What was cacl2 percentage in original sample if 22ml of 0.09312 m NAOH was used to titrated excess HCL? The answer 29.89% Who helps me

  100. Algebra

    Suppose a 2% acid solution is mixed with a 3% acid solution. Find the percent of acid in each mixture. -a mixture that contains an equal amount of 2% acid solution and 3% acid solution -a mixture that contains 3 times more 2% acid solution than 3% acid

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