# a density of 1.0 M solution of NaCL

29,680 results, page 69

Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2 +bx+c=0 The Solution is 10, only solution!
2. ### Chemistry

In an acid-base neutralization reaction 28.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution. What is the concentration of the H2SO4 solution? Please help with this question, thank you.
3. ### chemistry

a 340.4 ml sample of solution contains 27.4 g of cacl2. calcuate the molar concentration of calcium ion in this solution. this is what i did 27.4(110.98) =.247mol .247mol/34.4L=.726Mcacl2 is this correct?
4. ### chemistry

A 100.0 mL portion of 0.250 M calium nitrate solution is mixed with 400.0 mL of .100M nitric acid solution. What is the final concentration of the nitrate ion?
5. ### Chemistry

What is the concentration of HCl when 25.0 mL of HCl completely reacts with 10.0 mL of 0.1M solution of NH4OH (subscript 4)? Solution steps would be helpful so I can solve other similar problems.
6. ### chemistry

Neutralization Reaction Molarity Calculations: For example: What is the molarity of a Ca(OH)2 solution if .032 L of the solution is exactly neutralized by .015 of a 0.56 M HCl? How do I solve- I am unsure where to begin.
7. ### chem

A scientist wants to make a solution of potassium phosphate, K3PO4 for a lab experiment. How many grams of K3PO4 will be needed to produce 575ml of a solution that has a concentration of K+ ions of 1.4M.
8. ### chemistry

Rachel adds together 450.9g of a 22.0% solution of potassium carbonate and 275 grams of a 5.57m solution of Barium chlorate. How many grams of precipitate does she produce?
9. ### chemistry

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 20 mL of H3PO4 is required to react with 40 mL of a 0.15 M Sr(OH)2 solution. What is the molarity of the H3PO4 solution?
10. ### chemistry

Make a buffer solution with the following specification pH=5.5 Volume=2L total concentration=1M ... a) Name the components?... b) How many grams of each component would you use to make 2L of solution
11. ### chemistry

Make a buffer solution with the following specification pH=5.5 Volume=2L total concentration=1M ... a) Name the components?... b) How many grams of each component would you use to make 2L of solution
12. ### chemistry

What is the molarity of a solution containing 8 grams of solute in 500 mL of solution? Round to the nearest hundredth. Don't forget the unit! (gram formula mass of solute = 24 g)
13. ### chemistry

What is the molarity of a solution containing 8 grams of solute in 500 mL of solution? Round to the nearest hundredth. Don't forget the unit! (gram formula mass of solute = 24 g)
14. ### algebra,math

Solve the equation. Check both solutions and only write the real solution. the square root of 6m minus 5 = m A. {1} B. {5} C. {1, 5} D. no real solution I think its B
15. ### chemistry

what is the molarity of a solution prepared by dissolving 2.24 grams of NaOH in enough deionized water to obtain 500.0ml of solution?The molar mass of NaOH is 40.0g
16. ### chemistry

what is the molarity of a solution prepared by dissolving 2.24 grams of NaOH in enough deionized water to obtain 500.0ml of solution?The molar mass of NaOH is 40.0g
17. ### Chemistry

You have an unlimited amount of 12M HCl stock solution. You need to neutralize 2.00 grams of NaOH by slowly adding 0.100M HCl solution.
18. ### physical science

120ml of a solution whose concentration is 30g/ml was diluted with distilled water by raising its volume to 160cm3. Calculate the concentration of the new solution.
19. ### biochemistry

A solution was prepared by dissolving 8.0g of solid ammonium sulfate (MW= 132.14, specific volume= 0.565ml/g) in 35ml (i.e 35g) of water. What is the final volume of the solution?
20. ### chem

A sample of potassium hydrogen oxalate, KHC204, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.
21. ### Science

A solution of silver nitrate is mixed with a solution of potassium sulphide.Write the molecular,total ionic,and net ionic equations illustrating the reaction.
22. ### Chemistry

Consider a 0.71 M solution of each of the following salt dissolved in distilled water. Will the solution by basic, neutral, or acidic? KI= NH4NO2= (CH3CH2)3NHNO2= (CH3CH2)2NH2ClO4=
23. ### difficult chemistry

Calculate the molarity of thiosulfate solution if 0.400mg of Kl03 required 100ml of the thiosulfate solution provided that excess kl and hcl were added. Who helps me
24. ### Chemistry I

If 30.0 mL of 0.2 M nitric acid and 30.0 mL of 0.25 M solution of sodium hydroxide are mixed, what is the molarity of sodium nitrate? Assume that total volume of the solution after mixing is equal 60.0 mL.
25. ### Chemistry

Calculate the change in pH if 0.050 g of solid NaOH is added to 250 mL of a buffer solution that contains 0.80 M NaH2PO4 and 0.17M Na2HPO4. I found the pH of the buffer solution to be 6.54.

A solution is prepared by dissolving 25.0 g of glucose, C6H12O6, in 125 g of water at 25oC. (show work please) Determine the freezing point of the solution.
27. ### physical science

A solution that contains a large amount of salt and a small amount of water is said to be a __________ solution. A. dilute B. unsaturated C. concentrated D. saturated
28. ### analytical chemistry

Determine the concentration of iron in an aqueous solution containing 0.2810 grams of Fe(NH4)2(SO4)2 per liter of solution. Express the concentration in mg/dl.
29. ### math

a drug is supplied as a 20 mg/ml solution in a 50 ml vial. you need to make 15 ml of a 10 mg/ml solution. how much concentrate and how much diluent are needed to obtain the desired final volume?
30. ### Algebra

Determine the value or values of d that complete the square for the expression. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) (a) x^2 + 7x + d d = b) x^2 − 18x + d d = (c) x^2 + dx + 64 d = (d) x^2 + dx + 49/4 d =
31. ### Science

What is the molarity (moles per liter) of a solution in which 80 grams of sodium hydroxide, NaOH, is dissolved in 1 liter of solution? How do I convert the 80grams into mols?
32. ### Chemestry

What volume of 0.140 M K2Cr2O7 will be required to oxidize the Fe2+ ion in 81.5 mL of 0.176 M FeSO4 solution? Cr2O72- + Fe2+ Cr3+ + Fe3+ (acid solution)
33. ### chemestry

A sample of 0.75 KCL is added to 35 g of H2O in a calorimeter and stirred until dissolved, the temperature of the solution decreases from 24.8 to 23.6 what is the enthalpy of solution expressed in kJ / mole KCL?
34. ### Chemisrty

To what volume must 1.0 l of a 6.0 m solution of hcl be diluted in order to prepare a 0.2 m solution? I just need to find wht steps i need to take to get the answer
35. ### chemistry

A sample of potassium hydrogen oxalate, KHC2O4, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.
36. ### Chemistry

Calculate the volume of solution of 3.6 M NH4CI needed to prepare 350.0ml of 1.24 M NH4CI. How many grams of ammonium chloride are in the solution you created in the above problem.
37. ### Chemistry

I have to prepare 1ppm of Fe+2 solution in 1litre. How many grams of ferrous ammonium sulphate will be dissolved in 1litre to make above solution.. plzz guide me
38. ### chemistry

If a solution containing 22.34 g of mercury(II) perchlorate is allowed to react completely with a solution containing 6.256 g of sodium sulfate, how many grams of solid precipitate will be formed?
39. ### chemistry

You have 95.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 2.50 M solution of AgNO3(aq). Calculate the concentration of Na+ after the two solutions are mixed together. 1.08 M 0.475 M 5.00 M 0.00 M 2.16 M
40. ### chemistry

sorry,for the mistake. To 200mL of a 0.1M solution of a CH3COOH (Ka=1.8 x 10-5) 70mL of a 0.2M solution of NaOH have been added.calculate the pH before and after the NaOH addition.
41. ### Chemistry

You have 1683.8 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of NaOCl are in the solution? (show work Please)
42. ### Algebra

Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) 3x-3y+6z=15 x+2y-z=11 5x-8y+13z=19
43. ### college algebra

Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) x +2z=5 3x-y-z=12 6x-y-5z=27
44. ### Algebra 2

What is the solution for the determinant? |1 7 | |0 -3| How do you find the solution? I'm probably going to feel really stupid because it's probably simple but I'm just having some problems. Okay, a lot.
45. ### Chemistry

In a titration experiment, 15.0 mL of 0.10 M Ba(OH)2 is required to titrate a 10.0 mL of an unknown solution of HNO3. Calculate the concentration of the HNO3 solution using the data. 2HNO3 + Ba(OH)2 ® Ba(NO3)2 + 2H2O
46. ### Chemistry

Need help! Calculate the molar concentration of OH- in a 0.724M solution of hypobromite ion (BrO-; kB= 4.0 x 10^-6) what is the pH of this solution? I got as far as kB = [OH-][HBrO]/[BrO-] please help me with the rest.
47. ### analytical chemistry

A solution containing both Fe 3+ and Al 3+ can be selectively analyzed for Fe 3+ by buffering to a pH of 2 and titrating with EDTA. Th e pH of the solution is then raised to 5 and an excess of EDTA added, resulting in the formation of the Al 3+ - EDTA complex. The excess EDTA ...
48. ### chemistry

A mixture of NaCl and NaBr has a mass of 2.04g and is found to contain 0.70g of Na. What is the mass of NaBr in the mixture?
49. ### Chem

A precipitate is expected when an aqueous solution of porassium iodide is added to an aqueous solution of
50. ### Chemistry

Is it always apparent in a solution which component is the solute, for example, in a solution of liquid in a liquid?
51. ### human resources

a chemist has 400 mililiters (mL) of solution that is 21% acid. How many mililiers of acid are in the solution
52. ### chemistry

How many gallons of distilled water must be mixed with 50 gallons of a 30% alchohol solution to get a 25% solution?
53. ### math

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
54. ### math

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
55. ### math

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
56. ### chemistry

If 24.7 of 0.250 M NaOH solution are needed to neutralize 19.8 mL of H2SO4 solution, what is the molarity of the H2SO4?
57. ### chemistry

What is the concentration of this solution? If you added 10mL of water to the 10mL of 0.010M CaCl2 solution.
58. ### chemistry

If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?
59. ### chemistry

If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?
60. ### chemistry urgent

if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?
61. ### chemistry

determine the molarity of a 18 ml sample of HCl solution that is required to prepare 30 ml of 2.3 M HCl solution?
62. ### chemistry

What is the pH of a solution prepared by dissolving 6.0 g of HCl in water to make 415 mL of HCl solution?
63. ### chemistry

a solution that has an absorbance of 0.603 is diluted ten fold. What is the absorbance of this solution now?
64. ### chemistry

when 50 ml of an HNO3 solution is exactly neutralized by 150 ml of a 0.50 M solution of KOH, what s the concentration of HNO3
65. ### science

What volume of .01M KOH solution is needed to react with 20ml .01M Zn(OH)2 solution
66. ### chemistry

what is the new concentration of a NaOH solution that was made from 75 mL of a 5.5 M NaOH solution and diluted it to 250 mL?
67. ### Science

how would you make 1 molar solution using 4 molar solution and pure water?
68. ### mes

a solution of sugar in water is 5% by mass. how much sugar is present in 250 gm. of solution?
69. ### Math

How many liters of water should be added to 20 liters of 40% solution of acid to obtain 30% solution?
70. ### Chemistry

If 62.7 ml of .208M HCL is needed to needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?
71. ### chemistry

what is the molarity of a HCl solution that contains 13.0 g of HCl in 125 mL of solution? Answer in units of M
72. ### Chemistry

An aqueous solution is 0.257 m NaOH. What are the boiling point and freezing point of this solution?
73. ### chemistry

what are the steps for making 0.5 aqueous solution of MgCl2? What are the necessary steps to make this solution?
74. ### algebra 1

y=2x-1 2x-y-1=0 a)this sytem has excatly onw solution b)this system has indinetly many solutions c)this system has no solution d)(1,1) and (0,0)
75. ### Chemistry

Describe how to make 2.5L of 0.1M HCL solution from 12M HCL concentrated solution and water. Thank you
76. ### chemistry

It takes 62 mL of 0.124 M KOH to neutralize46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution?
77. ### Chemistry

When investigating heat of solution of NaoH& NH4No3, what is the heat of solution of the two cpds?
78. ### Chemistry

A 15.0 mL sample of 0.250 M H2SO4 is neutralized by 20.5 mL of KOH solution. What is the molarity of the KOH solution?
79. ### Chemistry

If you have 200ml of 25% aqueous solution of ethanol, what volume of ethanol and water are in the solution?
80. ### Chemistry

150cm3 of KOH solution containing 5.6g of KOH per dm3 of solution.what is the concentration?
81. ### Chemistry

A solution contains 0.00245 M HCl. Determine the [H3O+] for the solution. points Determine the [OH-]
82. ### Chemistry

suppose you added 26.0 ml of 0.01 M NaOH to the solution, what is the molarity of excess NaOH in the mixture? what is the ph of this solution?
83. ### chemisty

how many mL of a stock 2.50M HCI solution are required to prepare 25.mL of a 0.15M HCI solution?
84. ### Chemistry

How many mL of a stock 2.50M HCl solution are required to prepare 25.0 mL of a 0.15M HCl solution?
85. ### mathematical physics

Show that: (I) u = e^xsiny is a solution of Laplace's equation. (ii) u = x^2+t^2 is a solution of the wave equation.
86. ### mathematical physics

Show that :(i) u=e^xsiny is a solution of Laplace's equation. (ii) u= x^2+t^2 is a solution of the wave equation.
87. ### mathematical physics

Show that : (I) u = e^xsiny is a solution of Laplace's equation. (ii) u= x^2+t^2 is a solution of the wave equation.
88. ### mathematical physics

Show that :(I) u = e^xsiny is a solution of Laplace's equation. (ii) u = x^2+t^2 is a solution of the wave equation.
89. ### math

25.0 mL of an unknown HCl solution is titrated with 17.5 mL 0.100 M NaOH. What is the Molarity of the HCl solution?
90. ### science

25.0 mL of an unknown HCl solution is titrated with 17.5 mL 0.100 M NaOH. What is the Molarity of the HCl solution?
91. ### chemistry

If 17.5 mL of 0.553 M KOH is needed to neutralize 25.0 mL of an HBr solution what is the molarity od HBr solution
92. ### math

How many grams of water are needed to reduce 100g of a 30% acid solution to a 10% acid solution?
93. ### chemistry

a given sample of MgCl2 solution has 6×10^23 ions. what is the number of Cl(-1) ions in the same solution?
94. ### chemistry

what volume of a 0.5M solution of sulphuric acid is required to prepare 2 litres of a 0.4M solution of the acid
95. ### Chemistry

1.000 grams of KHP consumed 43.3 mL of KOH solution. What is the molarity of the KOH solution?
96. ### algebra

What would the concentration be if we mixed 200 of 10% sugar solution and 300 of 20% sugar solution ?
97. ### ANALYTICAL CHEMISTRY

3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned ...
98. ### ANALYTICAL CHEMISTRY

3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned ...
99. ### chemistry

All of the following acid-base pairs are examples of buffers EXCEPT: (Question from "Cracking the MCAT, 2010-2011 edition" by The Princeton Review) HCl/NaCl CH3CO2H/NaCH3CO2 HF/NaF H2CO3/NaHCO3 I chose ch3co2h/nach3co2
100. ### chemistry- pH, neutralization

What volume of NaOH was required to have neutralized the HCl. HCl + NaOH --> H2O + NaCl There no other information given in the problem except in later questions like the NaOH had 0.1 M and that there was 50.00 mL of HCl.