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Concentration
Page 9
Questions (659)
calculate the molality of one molarity solution of sodium nitrare. the density of solution is 1.25g cm cube.
1 answer
asked by
joyti
836 views
you made up a standard solution of calcium sulfate (CaSO4). the temperature is 25C. you then add 5.00*10^-3 odium sulfate
3 answers
asked by
Maria
860 views
A chemist makes 460 mL of magnesium fluoride (MgF2) working solution by adding distilled water to 20.0 mL of a 18.8 umol/L stock
1 answer
asked by
Nadia
38 views
A chemist makes 460 mL of magnesium fluoride (MgF2) working solution by adding distilled water to 20.0 mL of a 18.8 umol/L stock
1 answer
asked by
Nadia
38 views
If you take a 10.0-{mL} portion of the stock solution and dilute it to a total volume of 0.700 L, what will be the concentration
3 answers
asked by
Veronica
1,133 views
Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150
10 answers
asked by
Quinn
967 views
If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? AND if
3 answers
asked by
Dr. David
839 views
What is the concentration of a solution if the absorbance is 0.66 and the constant (a x b) is 8.2 L/mol?
3 answers
asked by
aaloy
788 views
The concentration of saturated NaOH is 50.0% w/w and the density is 1.52 g/mL. If exactly 8.50 mL were diluted to 1.000 L, what
1 answer
asked by
Ashley
779 views
. To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at
293 K. Find the percent concentration
2 answers
asked by
Harsha
843 views
How would the calculated concentration of the HCI be affected, if the sodium hydroxide were poured from a beaker that contained
4 answers
asked by
Tiffany
807 views
If 50.0 mL of a 1.00 M solution of CaCl2 (solution A) is mixed with 85.0 mL of pure water to produce solution B and then 42.5 mL
2 answers
asked by
John
798 views
Determine the hydronium ion concentration in a solution that is 0.00039 M HCl. Answer in units of M.
2 answers
asked by
Kiara
768 views
A solution is made by mixing exactly 500 mL of 0.156 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium
2 answers
asked by
bre
783 views
A hospital saline solution is analyzed to confirm its concentration. A 60.0 mL sample with a mass of 50.443 g is evaporated to
2 answers
asked by
Harry
777 views
A beaker contains 100 mL of water. We add 112 mg of KOH(s). What is the concentration of H+ions?
2 answers
asked by
Sarah
758 views
A potassium nitrate solution is prepared by dissolving 2.3 g of KNO3 in 25 mL of water. What is the concentration of this
1 answer
asked by
Bertsie
767 views
A 0.140-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co^2+ ions at
2 answers
asked by
Sarah
762 views
10g of Sodium Chloride are dissolved in 200ml of H2O. What is the mass percentage of solute in
this solution?
4 answers
asked by
Ericka
768 views
If a 1.60 M sample of A is heated to 500 K, what is the concentration of B at equilibrium?
A(aq)<---> 2B(aq) Kc=9.63x10^-6
2 answers
asked by
Anna
739 views
what volume of a 0.272 M solution of HBr is needed for a reaction that requires 49.5 g of HBr? Answer in units of L.
2 answers
asked by
Anonymous
749 views
A solution that contains a large amount of salt and a small amount of water is said to be a _______ solution.
A. unsaturated B.
6 answers
asked by
Dave
753 views
An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved
the
2 answers
asked by
761 views
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
2 answers
asked by
Ki
759 views
A standard solution is prepared for the analysis of fluoxymesterone (C20H29FO3), an anabolic steroid. A stock solution is first
2 answers
asked by
mel
760 views
What will be the concentration if 52mL of a solution that is 12ppm in sodium chloride is diluted with enough water to make 97mL
2 answers
asked by
Sarah
734 views
Water is added to 25 ml of a .911 M KNO3 solution until the volume of solution is exactly 500ml. What is the concentration of
3 answers
asked by
Jen
744 views
20 g of sugar are dissolved in 1 L of water. Calculate the concentration of this solution.
3 answers
asked by
Sarah
733 views
59.0 mL of a 1.60 M solution is diluted to a total volume of 268 mL. A 134-mL portion of that solution is diluted by adding 173
2 answers
asked by
John S.
739 views
What is [H3O+] in a solution obtained by dissolving 215 mL HCl(g), measured at 23 degrees C and 757 mmHg, in 4.30 L of aqueous
2 answers
asked by
Raj
724 views
1)How many mL of H2O2 are in 969 mL in solution ? * Given: 5.0% of H2O2 by volume.
2)What is the mole fraction of the solute in a
2 answers
asked by
Jay
711 views
How many moles of NaOH per liter of solution would you expect to have in a solution that is labeled "0.105 M NaOH" on the side
2 answers
asked by
Carla
712 views
what is the molar concentration of an aqueous NaOH solution when 45.0 grams are dissolved in water to make 100mL of solution
2 answers
asked by
brad
739 views
C respectively to prepare a 50% (mass by volume) solution of sodium hydroxide (NaOH). 'A' dissolved 50 g of NaOH in 100 ml of
2 answers
asked by
akshay
748 views
A solution is 5.5% (w/v) ethanol (C2H5OH, MW 46.07 g/mol). What is the molar concentration of ethanol in this solution?
3 answers
asked by
Morgan
709 views
What is the concentration in each of the following solutions?
A) 240 mL of 0.200 M KNO3 is added to 160 mL of water. B) 2.25g of
3 answers
asked by
Alan
731 views
When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown
3 answers
asked by
david
727 views
(ppm and ppb are sooo not easy for me to get)c
A saturated solution of PbCO3 contains 0.00011 g PbCO3 in 100. g of water. What is
2 answers
asked by
john
710 views
what volume of a 0.5M solution of sulphuric acid is required to prepare 2 litres of a 0.4M solution of the acid
2 answers
asked by
Apoorva
696 views
what is the molarity if 0.5 grams of sodium chloride is dissolved to make 0.05 mL of solution?
1 answer
asked by
tom
688 views
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration,
2 answers
asked by
gary lee
708 views
500 mL of water is added to 25 mL of 6.0 M hydrochloric acid. What is the final concentration of this solution in mol/L?
2 answers
asked by
Ashley
670 views
What is the molality of a solution of sucrose(molar mass=342) dissolved in water that is 25% sucrose by mass?
2 answers
asked by
D
683 views
calculate the concentration of potassium in grams per liter after mixing 100ml of 0.250m and 200ml of 1.00m k2s04
3 answers
asked by
Divao
673 views
1. How is the rate affected by doubling the concentratino?
2. Explain the effect of concentration on the rate of a reaction in
2 answers
asked by
Rogers
706 views
5. Compound A has a MW of 283. 0.423g of Compound A is dissolved in 13.5mL of water and 1mL of the solution added to 5mL of
2 answers
asked by
jenny
712 views
Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150
6 answers
asked by
Michael
678 views
In the laboratory a student combines 25.9 mL of a 0.223 M magnesium bromide solution with 23.3 mL of a 0.615 M magnesium acetate
2 answers
asked by
?
681 views
Consider 125 mL of 0.110 M MgCl2 solution.
a. How many moles of MgCl2 are contained in 125 mL of 0.0110 M MgCl2? b. What is the
2 answers
asked by
B
676 views
A volume of 25.0 mL of 8.0 M acetic acid is diluted with sufficient water to prepare 1.00 liter of solution. What is the
2 answers
asked by
Allie
660 views
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