a density of 1.0 M solution of NaCL

29,825 results, page 57
1. Chemistry

To what volume must 1580mL of 0.2005 N solution be diluted so that the resulting solution will be 0.1899 M? How much water will be needed in the dilution?
2. GN National Public School

If one third of 100 gm of 27% of aqueous solution is taken in a beaker and 10 gm of sugar is added to it,the concentration of resulting solution is.....
3. Chemistry

Calculate the molarity and normality of a solution made by dissolving 50g of Al(SO4)3 to produce 2.5 liter of solution.
4. chemistry

9.25% KCl solution is prepared by dissolving enough of the salt to give 100.0 g of solution. What is the mass of water required?
5. chemistry

Calculate the hydrogen-ion concentration [H+] for an aqueous solution in which [OH-] is 1 x 10^-11 mol/L. Is this solution acidic, basic, or neutral?
6. chemistry

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
7. Chemistry

A solution is made by dissolving 3.550g of Na2SO4 in water using a 100.0 mL volumetric flask. What is the molarity of the solution?
8. Chemistry

Calculate the molarity of a solution made by dissolving 16.0 grams of Na2CrO4 in enough water to form exactly 555 mL of solution.
9. chemistry

What is the molarity (mol/L) of sodium (Na) in a solution containing 0.4 mole ofNa + cation in 400 mL of an aqueous (water) solution?
10. math

Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on another problem where they want to know if this system of equations is perpendicular or parallel or neither,5x+4y=2, 4x-5y=4 I said neither. Is this right? I am to solve by using
11. algebra

Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on another problem where they want to know if this system of equations is perpendicular or parallel or neither, I said neither. Is this right? I am to solve by using elimination: 2x+3y=1,
12. science

A solution is prepared by mixing 90 ml of 5 M HCl and 30 ml of 8 M HNO3. Water is then added until the final volume is 1 L. Calculate the [H+], [OH-], and the pH for this solution.
13. chemistry

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
14. Differential Equation

Solve. x^3 y^'''+5x^2 y^''+7xy^'+8y = t+e^(-t) **guys pls give some solution. i need help. the answer couldn't teach me anything but the solution is.Tq
15. chemistry

calculate the molarity of the solution prepared by dissolving 16.45g NH4NO3 in water to make 250.mL solution.
16. chemistry

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
17. Chemistry!!

A solution has [Al^3+]=8.0×10−2 M and [HC2H3O2]= 1.10 M. What is the maximum quantity of NaHC2H3O2 that can be added to 200.0 mL of this solution before precipitation of Al(OH)3 begins?
18. physics

The speed of light is measured to be 1.50 ×108 m s–1 in a sucrose water solution. Calculate the refractive index of the solution.
19. Chemistry

A 2.5% KCl solution is prepared by dissolving enough of the salt to give 181.4 g of solution. What mass (g) of water is required?
20. Algebra II-Please check my solution

Solve by elimination method-thanks fro checking my work 2x + 3y= 2 multiply this equation by 2= 4x + 6y = 4 4x-2y = -28 4x + 6y = 4 -4x -2y = -28 8y = 32 y = 4 2x + 3(4) = 2 2x + 12 = 2 2x + 2-12 2x = -10 x = -5 solution = (-5,4)
21. algebra

Solve using the eliminattion method. Show your work. If the system has no solution or an infinite number of solution, state this. -2x-8y==42 -4x+6y=-18
22. Chemistry

40.0 grams of Al2S3 are dissolved into 200ml of water yielding 220ml of solution, what is the percent strength of the solution?
23. Chemistry

4.54 g of hydrazoic acid ( HN3 ) is added to water to make a final solution of 504 ml. What is the pH of the solution ? Use Ka = 1.90 × 10−5
24. Chemistry

Please help me! Thank-you! Calculate the concentration, in moles per liter, of a fertilizer solution if 500.0 mL of the solution contains 1.84 g of copper sulphate, CuSO4.
25. Chemistry

Suppose you had a 1.00 m solution of AlCl3. Assuming complete dissociation, what is the theoretical change in the freezing point of this solution?
26. chem 101

How many milliliters of 0.205 M NaOH solution are needed to completely neutralize 5.50 mL of 0.865 M H2SO4 solution?
27. 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
28. chem!

A solution was prepared by dissolving 0.163 g of sugar, (C12H22O11 MW = 3423gmol) in 100.00 mL water. What is the molarity of this solution?
29. chemistry

If 34.7 mL of 0.210 M KOH is required to completely neutralize 30.0 mL of a CH3COOH solution, what is the molarity of the acetic acid solution?
30. chemistry

compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution
31. Chemistry

A solution is made by diluting 18.2 g glucose (C6H12O6) in 0.150 kg water. What is the mass percentage of solute in this solution?
32. Chemistry

Calculate the new molarity of a 20.0 mL sample of 0.550 M CaCl2 solution that is diluted with water to make 250 mL of solution.
33. algebra

the perimeter P of a square is four times the length of ones side s, or P=4s. Is (1455) a solution of this equation? If not, find a solution that uses one of the given values
34. Math

solve by the elimination method. what is the solution of the system? type a pair, an integer or a fraction, N if no solution, and I for many solutions. Q: x + 8y = 17 -x + 2y = 3 A: N?
35. college chemistry2

calculate the molarity of a solution containing 20.0g of sulfuric acid in 500 ml of solution?in a solving problem form?
36. math

Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x-3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y-3)= 2y-9+y A.One solution B.No solutions C.Infinitely many solutions 3. 10x-2-6x =
37. Physics

A point charge is placed at the center of a net uncharged spherical conducting shell of inner radius 2.5 cm and outer radius 4.0 cm. As a result, the outer surface of the shell acquires a surface charge density σ = 71nC/cm2. Find (a) the value of the
38. chemistry

Calcium is determined gravimetrically by precipitating it as CaC2O4â‹… H2O, followed by isolating the precipitate as CaCO3. The sample to be analyzed is dissolved in 10 mL of water and 15 mL of 6 M HCl. After dissolution, the resulting solution is
39. Chem 104

From M1V1=M2V2 the volume of the KHP solution the molarity of the titrant and the volume of the titrant, find the molarity of the KHP solution . The KOH solution is the titrant since it is used to titrate the KHP solution. KHP mass-204.2 Mass per liter in
40. chemistry

6 small glass beads are found to weigh 9.34 g. The beads are placed in a graduated cylinder filled with ethyl alcohol (density 0.78 g/mL). The reading of the liquid in the cylinder before the beads were added is 21.5 mL. After the beads sink to the bottom
41. Chemistry

Ammonia (NH3) boils at -33oC; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is -46.2kj/mol, and the enthalpy of vaporization of NH3(l) is 23.2 kJ/mol. Calculate the enthalpy change when 1 L of liquid NH3 is burned
42. algebra

How many liters each of a 55% acid solution and a 80% acid solution must be used to produce 50 liters of a 60% acid solution? (Round to two decimal places if necessary.)
43. CHEMISTRY

HOW YOU PREPARE 30.0ML OF 0.800M HNO3 FROM A STOCK SOLUTION OF 4.OOM HNO3? WHAT SOLUTION IN ML OF THE 4.OOM HNO3 SOLUTION WILL YOU NEED?
44. math

A pharmacist mixes 14 ounces of 68% saline solution with 55% saline solution. If the final mixture is 62% saline, how many ounces of the 55% solution were used?
45. math

How many liters each of a 55% acid solution and a 80% acid solution must be used to produce 50 liters of a 60% acid solution? (Round to two decimal places if necessary.)
46. basic algebra

Boris has 10 ounces of a 10% acid solution. How many ounces of 25% acid solution should he add to make a solution that is 20% acid? Thank you.
47. Math-Algebra

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

Explain how to solve: A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide?
49. pharmacy tech.

a pharmacist has a 40% acid solution and has a 25% acid solution. How many liters must be mixed to form 54 liters of a 27 % acid solution?
50. Chemistry

1. A lab tech needs 1.00 L of 0.125 mol/L sulfuric acid solution for a quantitative analysis experiment. A commercial 5.00 mol/L sulfuric acid solution is available from a chemical supply company. Write out what steps he/she would follow to prepare the
51. Electrochemistry

How much electric charge is needed to produce 1.000kg of Na metal from the Na+ ions in NaCl? You need one electron per atom. How many atoms are present in 1kg of Na? Use avagradros number. To change to coulombs, remember that 1 electron= 1.6E-19C
52. Chemistry

Suppose MgSe(a=545 pm) and SrSe (a=623 pm) both crystallize with a NaCl (rock salt) structure. Calculate the ionic radius of Sr2+ (Hint:Assume that the Se2- ions actually touch in MgSe.)
53. Chemistry

For the reaction of 2 HCl + Na2CO3 -> H2O + CO2 + 2 NaCl, how can I visually identify the limiting reagent, without any calculations? If I have a very high percent yield, what would be a good reason for it, considering that the HCl was diluted to 0.050
54. chem

Rank these in order of increasing freezing points: C2H6O, NaCl, NaSO4, C12H22O11 I suggest that you look them up. You will have to make an assumption at the isomer of the organic compounds that is intended, but it will not make a difference to the ranking.
55. Chem II

When you are given the question: Arrange the following aqueous solutions in order of increasing boiling points. 0.050 m Mg(NO3)2; 0.100 m ethanol; and 0.090 m NaCl. I know the formula for boiling point, but I don't know where to get the Kb. Am I headed in
56. chemistry

There has to be a precipitate of calcium nitrate, Ca(NO3)2, and sodium chloride, NaCl because when I clicked none, it came out wrong. Please help http://en.wikipedia.org/wiki/Solubility check the solubility table there. Nitrates, and chlorides are soluble.
57. Chemistry

Calculate the volume of Carbon dioxide gas generated when 40.0 g of sodium carbonate reacts with hydrocholric acid according to the following reaction. The gas is to be collected at STP Na2CO3 + HCL-----> NaCL +H2O + CO2(g)
58. Chemistry

a solution of HCL is approximately 0.1M and has to be standardized . 1.234g Na2CO3 are dissolved to make 100ml of solution. 20mL of this solution are titrated with the HCL solution, requiring 31.3mL for the second equivalence point. what is the exact
59. Chemistry

Water molecules can dissociate into hydronium ions (H3O+ ,often just called H+ for shorthand) and hydroxide ions (OH-). The concentration of each of these ions in pure water is 10^-7. In other words, in pure water one out of every 10 million molecules is
60. physics

Four tubes are set up in the lab at sea level as shown by the figure. The letter under each tube corresponds the question with the same letter. 1 atm = 101300 Pa = 101300 N/m2 ρwater = 1000 kg/m3 (a) What is the pressure pushing down on the surface of
61. Chemistry

MgCl2(aq) + 2 NaOH(aq) --> Mg(OH)2(s) + 2 NaCl(aq) How many grams of Mg(OH)2 would form if 50.00 mL of 0.9750M NaOH were combined with 50.00 mL of 0.8820 M MgCl2?
62. Chemistry

MgCl2(aq) + 2 NaOH(aq) --> Mg(OH)2(s) + 2 NaCl(aq) How many grams of Mg(OH)2 would form if 50.00 mL of 0.9750M NaOH were combined with 50.00 mL of 0.8820 M MgCl2?
63. chemistry

According to the reaction NaOH + HCl ¨ NaCl + H2O, which is the limiting reactant when 37.0 g of HCl are mixed with 37.0 g NaOH?
64. chemistry

AgNO3+NaCL=NaNo3+AgCl heat change=-36 heat of percipitation of 2 moles of AgCl???
65. Chemistry

Using the balanced equation of: HCl+NaOH-->H20+NaCl, how many moles of HCl could be neutralized with 13.2 mL of 3.00 M NaOH?
66. chemistry

If 3.00 moles of NaCl were mixed with 0.2 L of 1.5 M of AgNO3, how many moles of solid would form? Include the formula for the solid.
67. chemistry

How many grams of NaOH would be needed to react with 199 g of HCl? NaOH + HCl --> NaCl + H2O
68. chem

how many moles of Na are there in 1.50 moles of NaCl ?
69. Organic Chemistry

How am I supposed to do these questions? I'm completely lost. A 0.120 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.12° in a 1-dm sample container. The molar mass of the compound is 130.0 g/mol. (b) What is the
70. chemistry(rusting)

i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test
71. chemistry(rusting)

i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test
72. chemistry(rusting)

i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test
73. chemistry(rusting)

i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test
74. Science

Hello :) my name is Deqa, i was wondering if anyone knew the affects of a state of a substance on the reaction so generally speaking does it matter if a solid is dissolved in a solution or is it faster for a solution be added to another solution basically
75. classical mechanics

A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius attached to a cylindrical stem of radius and length . When placed in a liquid, the device floats as shown in the figure with a
76. physics

bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young module total length
77. physics

bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young module total length
78. physics

bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young module total length
79. chemistry

You weigh out an antacid tablet and determine the mass to be 1.1990 g. After taking a 0.2455 g sample of the antacid tablet, you dissolve it in 25.00 mL of a 0.1006 M solution of hydrochloric acid in a 250.0 mL Erlenmeyer flask. After heating the solution
80. Probability

I need help calculating a c value such that f(x,y) is a probability density function. What makes a function a probability density function?
81. physics

A U-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water. Both sides of the tube are open to the atmosphere. If h1 = 0.46 m and h2 = 0.25 m, what is the density of the liquid? on the left side of the tube is
82. Biology

A student wishes to prepare 300 mL of 0.25 M sucrose. He puts 25.7 g of sucrose in a beaker and then adds 300 mL of dH2O. The total volume of the solution after the sucrose has been dissolved is 330 mL. a) What did he do wrong when preparing his solution?
83. chem

which is the correct balanced equation for a given titration process, (a) or (b)? a) 6H+ + 2MnO4- + 3H2O2 -> 4O2 + 2Mn2+ + 6H2O b) 6H+ + 2MnO4- + 5H2O2 -> 5O2 + 2Mn2+ + 8H2O Process: Make a solution in a 100mL volumetric flask using 1g of NaBO3*4H2O,

A balloon filled with air does not rise as a balloon filled with helium. What does this tell you about the density of helium? A. Helium is more dense than air B. Helium is less dense than air C. The two gases have the same density D. When heated, helium
85. chemistry

Which of the following is NOT true for solutes and solvents? A. At least one solvent must be dissolved in a solute to make a solution. B. Solute concentration can be measured in terms of solute moles / solution volume or solute moles / solvent mass. C. A
86. Chemistry (isotonicity)

How many milligrams of NaCl should be used to make the following prescription isotonic? Dextrose anhydrous 2.5% Sodium chloride q.s. Sterile water for injection Ad 1L There is only dextrose anhydrous 5% available
87. chemistry

Sodium chloride is decomposed into the elements sodium and chlorine by means of electrical energy. How many grams of chlorine gas can be obtained from 2.50 mol NaCl?
88. Chemistry

What is wrong with or ambiguous about the phrase "four molecules of NaCl" I really don't understand my textbook says in the back that it is an ionic compound so I guess that its not really a molecule then I don't understand...
89. Physics

Standard Temperature and Pressure (STP) is defined as a temperature of 0.00oC and a pressure of 100kPa. If the molar mass M of nitrogen is 14.0 g/mol, find the density (kg/m3) of nitrogen gas (N2) at STP. Nitrous Oxide or laughing gas is composed of the
90. Chemistry I - University

Suppose 5.87 g of barium acetate is dissolved in 300. mL of a 71.0 m M aqueous solution of sodium chromate. calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium acetate is
91. Science

I have two questions and I have answers for them and I don't know if there right or not. The ones that have stars by the answers is the answers I picked. 1. Complete this sentence. If volume remains the same while the mass of a substance ________, the
92. albegra

PPease help me answer these question? (1) How do you know ifa value is solution for an inequality? (2) How is this different from determining if a value is solution to an equation? (3) If you replace the equal sign of an equation with an inequality sign,
93. Science

Answer with solution, plz. 1. What is the concentration of the solution by volume when dissolved is used 30 grams & the water is 60 grams. 2. How much solvent in grams is present in a solution with a concentration by volume of 40% the solute of content is
94. science chemistry

1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
95. chemistry

22 mL of 0.37 mol per litre acetic acid is titrated by way of a standardized 0.29 mol/L KOH solution. Calculate the pH of the solution after roughly 18 mL of the solution of KOH is added. The Ka of acetic acid proves to be 1.8 x 10^-5
96. science chemistry

1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
97. math

Find the solution of the given system by the method of addition that was used in Examples 4 and 5. If there is no solution or infinitely many solutions, state so. Put the value for x in the blank. 2x - 3y = 1; x + 2y = 4
98. Science

If pale green FeCl2 solution is left in the open for some time, will some of it gradually oxidise to become brown FeCl3 solution?
99. chemistry HELP!

Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution: a solution that is 0.170 M in HC2H3O2 and 0.105 M in KC2H3O2
100. chemistry

A particular weak acid (HA) with a Ka of 2.0e-5 is 75% titrated with a strong base to produce a buffer solution. What is the pH of this final solution? Show all work.