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Osmolarity Solutions Library

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94 solutions

Osmolarity

Q. How many ions are present in 30.0 ml of 0.600 M Na2CO3 solution?

Solved • Nov 11, 2020

Osmolarity

Q. What is the molarity of Cl- in each solution? A.) 0.188M NaCl B.) 0.200M SrCl2

Solved • Oct 23, 2020

Osmolarity

Q. How many sodium ions (Na+) are present in 325 mL of 0.850 M Na2SO4?

Solved • Oct 19, 2020

Osmolarity

Q. A 0.100 M solution of K2SO4 would contain the same total ion concentration as which of the following solutions?When a compound is dissolved in wate...

Solved • Jul 1, 2020

Osmolarity

Q. What is the concentration of K+ ions in a 0.045 M K2CO3 solution assuming complete dissociation?When a compound is dissolved in water, the resultin...

Solved • Jul 1, 2020

Osmolarity

Q. If CaCl2 is dissolved in water, what can be said about the concentration of the Ca2+ ion?a) It has the same concentration as the Cl− ion. b) Its co...

Solved • Jul 1, 2020

Osmolarity

Q. What is the concentration of K+ in 0.15 M of K2S?  Express your answer to one decimal place and include the appropriate units.Ion concentration ref...

Solved • Jul 1, 2020

Osmolarity

Q. Which of the schematic drawings best describes a solution of Li2SO4 in water (water molecules not shown for simplicity)? 

Solved • Jun 30, 2020

Osmolarity

Q. Calculate the molarity of hypochlorite ion in a commercial bleach solution. It contains 5.25% sodium hypochlorite by mass and the density of the so...

Solved • Jun 16, 2020

Osmolarity

Q. How many moles of Na+ are present in 343 mL of 1.27 mol solution of Na2SO4.

Solved • Jun 15, 2020

Osmolarity

Q. What are the respective concentrations (M) of Fe3+ and I- afforded by dissolving 0.200 mol FeI3 in water and diluting to 725 mL?A) 0.276 and 0.828B...

Solved • Apr 29, 2020

Osmolarity

Q. Which one of the following is not true concerning 2.00 L of 0.100 M solution of Ca3(PO4)2?A) This solution contains 0.200 mol of Ca3(PO4)2. B) This...

Solved • Apr 29, 2020

Osmolarity

Q. Which produces the greatest number of ions when one mole dissolves in water? a. NaCl b. NH4Cl c. NH4NO3 d. Na2SO4

Solved • Apr 29, 2020

Osmolarity

Q. What is the molar concentration of sodium ions in a 0.350 M Na3PO4 solution?A. 0.117MB. 0.350MC. 1.05MD. 1.40M

Solved • Apr 27, 2020

Osmolarity

Q. Which of the following solutions will have the most particles present per liter?A. 0.2M KBrB. 0.1M HNO3C. 0.4M ethanol (C2H5OH)D. 0.3M K2SO4

Solved • Apr 14, 2020

Osmolarity

Q. A 0.15 M solution of BaCl2 contains:A) 0.15 M Ba2+ ions and 0.15 M Cl- ions. B) 0.15 M Ba2+ ions and 0.30 M Cl- ions. C) 0.30 M Ba2+ ions and 0.15 ...

Solved • Mar 25, 2020

Osmolarity

Q. How many moles of solute particles are present in 5.04 mL of 0.796 M K2SO4? When you have the value, take its LOG (base 10) and enter it with 2 dec...

Solved • Dec 11, 2019

Osmolarity

Q. What is the concentration of chloride ions when 10.0 grams of iron(III) chloride (formula mass = 162.2 g/mol) is dissolved in water to form 0.100 L...

Solved • Nov 28, 2019

Osmolarity

Q. What is the concentration of nitrate ions in a solution made by dissolving 14.3 g of Fe(NO3)3 (molar mass = 241.88 g mol-1) in enough water to form...

Solved • Oct 3, 2019

Osmolarity

Q. If 308 mL of 0.148 M NaCl solution is added to 228 mL of a 0.369 M NH4NO3 solution, the concentration of ammonium ions in the resulting mixture wil...

Solved • Oct 3, 2019

Osmolarity

Q. The concentration of iodide ions in a 0.193 M solution of barium iodide is __________.a. 0.193 Mb. 0.386 Mc. 0.0965 Md. 0.579 Me. 0.0643 M

Solved • Aug 2, 2019

Osmolarity

Q. Sulfuric acid is a strong acid and dissociates in water as shown in equation 4. H2SO4 (aq) = 2H+ (aq) + SO42- (aq)  (equation 4) What is the hydrog...

Solved • Jul 9, 2019

Osmolarity

Q. Describe how you would prepare each of the following aqueous solutions, starting with solid KBr.0.80 L of 1.6×10−2 M KBr

Solved • Dec 3, 2018

Osmolarity

Q. An aqueous solution contains 2.4 mM of total ions.If the solution is NaCl (aq), what is the concentration of chloride ion?

Solved • Oct 31, 2018

Osmolarity

Q. An aqueous solution contains 2.4 mM of total ions.If the solution is FeCl3 (aq), what is the concentration of chloride ion?

Solved • Oct 31, 2018

Osmolarity

Q. How many moles of protons are present in 36.0 mL of a 4.50 M solution of nitric acid?

Solved • Oct 31, 2018

Osmolarity

Q. What is the ratio of the concentration of potassium ions to the concentration of carbonate ions in a 0.015 M solution of potassium carbonate?

Solved • Oct 31, 2018

Osmolarity

Q. Consider two solutions, the first being 50.0 mL of 1.00 M CuSO4 and the second 50.0 mL of 2.00 M KOH. When the two solutions are mixed in a constan...

Solved • Oct 31, 2018

Osmolarity

Q. In each of the following pairs, indicate which has a higher concentration of I- ion.0.10 M BaI2 or 0.25 M KI solution

Solved • Oct 31, 2018

Osmolarity

Q. In each of the following pairs, indicate which has a higher concentration of  I- ion.100 mL of 0.10 M KI solution or 200 mL of 0.040 M ZnI2 solution

Solved • Oct 31, 2018

Osmolarity

Q. In each of the following pairs, indicate which has the higher concentration of I- ion.3.2 M HI solution or a solution made by dissolving 145 g of N...

Solved • Oct 31, 2018

Osmolarity

Q. Which will have the highest concentration of potassium ion: 0.20 M KCl, 0.15 M K2CrO4, or 0.080 M K3PO4?

Solved • Oct 31, 2018

Osmolarity

Q. Which will contain the greater number of moles of potassium ion: 30.0 mL of 0.15 M K2CrO4 or 25.0 mL of 0.080 M K3PO4?

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of NO3- in each solution?0.160 M KNO3.

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of NO3- in each solution?0.260 M Ca(NO3)2.

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of NO3- in the solution?0.360 M Al(NO3)3.

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of Cl- in each solution?0.210 M NaCl

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of Cl- in each solution?0.160 M SrCl2

Solved • Oct 31, 2018

Osmolarity

Q. What is the molarity of Cl- in each solution?0.110M AlCl3

Solved • Oct 31, 2018

Osmolarity

Q. How many moles of solute particles are present in 1 mL of each of the following aqueous solutions?(d) 0.05 M (NH4)2CO3

Solved • Oct 30, 2018

Osmolarity

Q. How many moles of solute particles are present in 1 L of each of the following aqueous solutions?(a) 0.3 M KBr

Solved • Oct 30, 2018

Osmolarity

Q. Suppose 50.0 mL of 0.250 M CoCl2 solution is added to 25.0 mL of 0.350 M NiCl2 solution. Calculate the concentration, in moles per liter, of each o...

Solved • Oct 17, 2018

Osmolarity

Q. How many moles of H+ ions are present in each of the following aqueous solutions?1.4 mL of 0.75 M hydrobromic acid

Solved • Oct 12, 2018

Osmolarity

Q. Calculate each of the following quantities:Number of Mg2+ ions in each milliliter of 0.184 M magnesium bromide

Solved • Oct 12, 2018

Osmolarity

Q. What is the molarity of the Al3+ ions when 0.25 mol of aluminum nitrate, Al(NO3), is dissolved in enough water to make 3.0 L of solution?

Solved • Oct 8, 2018

Osmolarity

Q. Calculate the molarity of the hydroxide ions in a solution that has been prepared by dissolving 88.7 g of barium hydroxide (Ba(OH)2) in water and d...

Solved • Oct 8, 2018

Osmolarity

Q. In the laboratory you dissolve 23.5 g of potassium fluoride in a volumetric flask and add water to a total volume of 500 mL. What is the molarity o...

Solved • Oct 8, 2018

Osmolarity

Q. The dissolution reaction is KMnO4 (s) → K+ (aq) + MnO4- (aq) If a solution is made that is 0.15 M in KMnO4, what are the concentrations of the two ...

Solved • Oct 3, 2018

Osmolarity

Q. K2SO4 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.650 M K 2SO4 solution. [K+] =                    M...

Solved • Aug 7, 2018

Osmolarity

Q. What is the concentration (M) of lithium ions in 4.57 L of a 2.35 M Li  3P solution?a. 45.0 Mb. 14.1 Mc. 2.35 Md. 7.05 Me. 99.0 M 

Solved • Jul 31, 2018

Osmolarity

Q. What is the total molar concentration of ions in each of the following solutions, assuming complete dissociation? A 0.685 M solution of K2CO3 

Solved • Jul 16, 2018

Osmolarity

Q. What is the molar concentration of Na + ions in 0.025 M solutions of the following sodium salts in water? 

Solved • Jul 9, 2018

Osmolarity

Q. In the laboratory you dissolve 13.2 g of manganese(II) chloride in a volumetric flask and add water to a total volume of 500 mL. What is the molari...

Solved • Jul 3, 2018

Osmolarity

Q. In the laboratory you dissolve 17.7 g of sodium acetate in a volumetric flask and add water to a total volume of 125 ml. What is the molarity of th...

Solved • Jun 19, 2018

Osmolarity

Q. What is the concentration of nitrate ions in a 0.125 M Mg(NO  3)2 solution?a. 0.0625 Mb. 0.160 Mc. 0.250 Md. 0.125 Me. 0.375 M

Solved • Mar 13, 2018

Osmolarity

Q. What is the concentration of K+ ions in a 0.045 M K 2CO3 solution assuming complete dissociation?

Solved • Feb 26, 2018

Osmolarity

Q. What is the molarity of Cl− in each solution?A) 0.170 M NaCl.  B) 0.150 M SrCl2.

Solved • Feb 19, 2018

Osmolarity

Q. 1) What is the concentration of K + in 0.15 M of K 2S?  2) If CaCl2 is dissolved in water, what can be said about the concentration of the Ca 2+ io...

Solved • Dec 22, 2017

Osmolarity

Q. A solution has 25.65 g of calcium perchlorate (MW = 238.98 g/mol) in 1.23 L. What is the concentration of perchlorate ions in M? Enter your answer ...

Solved • Jun 20, 2017

Osmolarity

Q. What is the total concentration of ions in a 1.1 M solution of ammonium sulfate? A. 1.1 M B. 2.2 M C. 3.3 M D. 4.4 M E. 18.7 M

Solved • May 27, 2017

Osmolarity

Q. When 5.0 grams of Na 2O (MM = 61.98 g/mol) are dissolved in 1.00 L of water, what is the concentration of the Na+ ions? A.  0.040 M     B.  0.080...

Solved • Oct 4, 2016

Osmolarity

Q. Calculate the molarity of bromide ions in a solution if you mixed 12.86 g calcium bromide, CaBr2, in enough water to make 305.0 mL of solution

Solved • Sep 22, 2016

Osmolarity

Q. Which of the following solutions will have the highest concentration of bromide ions? a) 0.10 M NaBr b) 0.10 M CaBr2 c) 0.10 M AlBr3 d) 0.05 M ...

Solved • Sep 22, 2016

Osmolarity

Q. How many moles of Ca2+ ions are in 0.100 L of a 0.450 M solution of Ca3(PO4)2? 

Solved • Sep 22, 2016

Osmolarity

Q. A 4.691 g sample of MgCl2 is dissolved in enough water to give 750 mL of solution.  What is the magnesium ion concentration in this solution? A)  ...

Solved • Sep 20, 2016

Osmolarity

Q. What is the concentration of nitrate ions in a 0.125 M Mg(NO 3)2 solution? A) 0.375 M B) 0.0625 M C) 0.125 M D) 0.160 M E) 0.250 M

Solved • Sep 14, 2016

Osmolarity

Q. When 5.0 grams of Na2O (MM = 61.98 g/mol) are dissolved in 1.00 L of water, what is the concentration of the Na + ions? A. 0.040 M B. 0.080 M C....

Solved • Aug 5, 2016

Osmolarity

Q. Calculate the concentration of all ions present when 0.160 g of MgCl 2 is dissolved in 100.0 mL of solution.

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the sodium ion concentration when 70.0 mL of 3.0 M sodium carbonate is added to 30.0 mL of 1.0 M sodium bicarbonate.

Solved • Jul 21, 2016

Osmolarity

Q. Which of the following solutions of strong electrolytes contains the largest number of moles of chloride ions: 100.0 mL of 0.30 M AlCl3, 50.0 mL of...

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.d. 132 g of ammonium sulfate in 1.50 L of...

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.c. 1.00 g of potassium chloride in 0.500 ...

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.b. 0.300 mol of barium nitrate in 600.0 m...

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.a. 0.0200 mol of sodium phosphate in 10.0...

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.d. 1.00 g K3PO4 in 250.0 mL of solution

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.c. 5.00 g of NH 4Cl in 500.0 mL of solution

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.b. 2.5 mol of Na 2SO4 in 1.25 L of solution

Solved • Jul 21, 2016

Osmolarity

Q. Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.a. 0.100 mol of Ca(NO3)2 in 100.0 mL of s...

Solved • Jul 21, 2016

Osmolarity

Q. Indicate the concentration of each ion present in the solution formed by mixing (c) 3.60 g KCl in 75.0 mL of 0.250 M CaCl2 solution. Assume that th...

Solved • Jul 11, 2016

Osmolarity

Q. Indicate the concentration of each ion present in the solution formed by mixing (b) 44.0 mL of 0.100 M and Na2SO4 and 25.0 mL of 0.150 M KCl. Assum...

Solved • Jul 11, 2016

Osmolarity

Q. Indicate the concentration of each ion or molecule present in the following solutions: (d) a mixture of 45.0 mL of 0.272 M NaCl and 65.0 mL of 0.02...

Solved • Jul 11, 2016

Osmolarity

Q. Indicate the concentration of each ion or molecule present in the following solutions: (c) 0.0150 M C6H12O6Assume that the volumes are additive.

Solved • Jul 11, 2016

Osmolarity

Q. Indicate the concentration of each ion or molecule present in the following solutions: (b) 1.3 x 10–2 MgSO4Assume that the volumes are additive.

Solved • Jul 11, 2016

Osmolarity

Q. Indicate the concentration of each ion or molecule present in the following solutions: (a) 0.25 M NaNO3Assume that the volumes are additive.

Solved • Jul 11, 2016

Osmolarity

Q. In each of the following pairs, indicate which has the higher concentration of Cl – ion: (c) 0.050 M HCl solution or 0.020 M CdCl2 solution.

Solved • Jul 11, 2016

Osmolarity

Q. In each of the following pairs, indicate which has the higher concentration of Cl– ion: (b) 100 mL of 0.10 M KCI solution or 400 mL of 0.080 M LiCI...

Solved • Jul 11, 2016

Osmolarity

Q. In each of the following pairs, indicate which has the higher concentration of Cl – ion: (a) 0.10 M CaCl2 or 0.15 M KCI solution

Solved • Jul 11, 2016

Osmolarity

Q. Which of the following solutions is the most basic? (a) 0.6 M NH 3, (b) 0.150 M KOH, (c) 0.100 M Ba(OH)2.  Explain.

Solved • Jul 11, 2016

Osmolarity

Q. Which of the following solutions has the largest concentration of solvated protons: (a) 0.2 M LiOH, (b) 0.2 M HI, (c) 1.0 M methyl alcohol (CH3OH)?...

Solved • Jul 11, 2016

Osmolarity

Q. How many moles of sodium ions are in 35.0 ml of a 0.750 M NaCl(aq) solution? A. 0.0263 moles B. 0.750 moles C. 0.0523 moles D. 0.375 moles E. ...

Solved • Apr 12, 2016

Osmolarity

Q. What is the concentration of nitrate ions in a solution that contains 74.5 g lead (IV) nitrate, Pb(NO3)4, dissolved in 450 mL solution? ( MW of Pb(...

Solved • Feb 19, 2016

Osmolarity

Q. How many chloride ions are present in 65.5 mL of 0.210 M AlCl3 solution? a. 4.02 x 1023 chloride ions b. 5.79 x 1024 chloride ions c. 2.49 x 102...

Solved • Feb 12, 2016

Osmolarity

Q. How many moles of PO43– ions are in 2.00 L of a 0.600 M solution of a Ca 3(PO4)2? a) 0.600 b) 1.000 c) 1.200 d) 2.400 e) 3.600

Solved • Feb 5, 2016

Osmolarity

Q. Which one of the following solutions will have the greatest concentration of hydroxide ions? a) 0.100 M hydrochloric acid b) 0.100 M magnesium hy...

Solved • Feb 5, 2016