Chemistry Chemistry Practice Problems Solutions Library

Molarity Solutions Library

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325 solutions

Molarity

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

Molarity

Q. Calculate the molarity of a solution prepared by dissolving 78.6 g of KF (molar mass=58.09 g/mol) in enough water to produce 225 mL of solution.A) ...

Solved • Feb 4, 2020

Molarity

Q. A solution is prepared by mixing 655 mL of methanol and 491 mL of water. The molarity of methanol in the resulting solution is 14.65 M. The density...

Solved • Jan 23, 2020

Molarity

Q. Calculate the molarity of an aqueous solution that is 18.2% by mass calcium chloride. You might need to know that the density is 1.18 g/mL.

Solved • Dec 12, 2019

Molarity

Q. Calculate the molarity of an aqueous solution that is 22.3% by mass calcium chloride. You might need to know that the density is 1.20 g/mL.A. 0.96B...

Solved • Dec 11, 2019

Molarity

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

Molarity

Q. How many milliliters of a 0.184 M RbNO3 solution contain 0.113 moles of RbNO3?A) 885 mL B) 543 mL C) 163 mL D) 614 mL E) 326 mL

Solved • Oct 25, 2019

Molarity

Q. What is the concentration of FeCl3 in a solution prepared by dissolving 30.0 g of FeCl3 (molar mass = 162.2 g/mol) in enough water to make 275 mL o...

Solved • Oct 25, 2019

Molarity

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

Molarity

Q. Which of the following would be used to make a 0.40 M NaCl solution (NaCl mass and water volume, respectively)A. 29.2 g, 500 mL B. 58.4 g, 4.00 L C...

Solved • Oct 3, 2019

Molarity

Q. What mass of potassium carbonate (molar mass = 138.21 mol-1) is needed to prepare 450. mL of an aqueous solution with a potassium concentration of ...

Solved • Oct 3, 2019

Molarity

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

Molarity

Q. Let's say we want to make 0.250 L of an aqueous solution with [NaCl] = 0.800 M. What mass of the solute, NaCl, would we need to make this solution?

Solved • Aug 25, 2019

Molarity

Q. Let's consider a solution made by dissolving 2.355 g of sulfuric acid, H 2SO4, in water. The total volume of the solution is 50.0 mL. What is the m...

Solved • Aug 25, 2019

Molarity

Q. How many mL of a 0.155 M KCl solution contain 2.55 g KCl?

Solved • Aug 2, 2019

Molarity

Q. What is the molarity of each of the following solutions?15.5 g Al2 (SO4 )3 in 0.250 L solution

Solved • Dec 3, 2018

Molarity

Q. Calculate the number of moles of solute present in 255 mL of 1.60 M HNO3(aq).

Solved • Dec 3, 2018

Molarity

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

Molarity

Q. Calculate the molarity of the following aqueous solutions.0.550 g Mg(NO3 )2 in 250.0 mL of solution

Solved • Dec 3, 2018

Molarity

Q. Calculate the molarity of the following aqueous solutions.22.5 g LiClO4 3H2 O in 125 mL of solution

Solved • Dec 3, 2018

Molarity

Q. A sulfuric acid solution containing 571.5 g of H2 SO4 per liter of aqueous solution has a density of 1.329 g/cm3.Calculate the molarity of H2 SO4 i...

Solved • Dec 3, 2018

Molarity

Q. Calculate the number of moles of solute present in each of the following aqueous solutions.700 mL of 0.260 M SrBr2

Solved • Dec 3, 2018

Molarity

Q. A solution is prepared by dissolving 50.5 g sucrose (C12H22O11) in 0.404 kg of water. The final volume of the solution is 355 mL. For this solution...

Solved • Dec 3, 2018

Molarity

Q. An aqueous KNO3 solution is made using 77.6 g of KNO3 diluted to a total solution volume of 1.96 L. (Assume a density of 1.05 g/mL for the solution...

Solved • Dec 3, 2018

Molarity

Q. A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25 oC. The final volume of the solution is 118 mL. The den...

Solved • Dec 3, 2018

Molarity

Q. How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?126 mL of 0.115 M NaNO3

Solved • Dec 3, 2018

Molarity

Q. An aqueous NaCl solution is made using 126 g of NaCl diluted to a total solution volume of 1.15 L .Calculate the molarity of the solution.

Solved • Dec 3, 2018

Molarity

Q. Ammonium chloride, NH4Cl, is a very soluble salt in water.If you dissolve 16 g of ammonium chloride in 500.0 mL of water, what is the molar concent...

Solved • Nov 12, 2018

Molarity

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

Molarity

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

Molarity

Q. Ritalin is the trade name of a drug, methylphenidate, used to treat attention-deficit/hyperactivity disorder in young adults. The chemical structur...

Solved • Oct 31, 2018

Molarity

Q. A medical lab is testing a new anticancer drug on cancer cells. The drug stock solution concentration is 1.5 10-9 M, and 1.00 mL of this solution w...

Solved • Oct 31, 2018

Molarity

Q. Calicheamicin gamma-1, C55H74IN3O21S4, is one of the most potent antibiotics known: One molecule kills one bacterial cell.Describe how you would (c...

Solved • Oct 31, 2018

Molarity

Q. Neurotransmitters are molecules that are released by nerve cells to other cells in our bodies, and are needed for muscle motion, thinking, feeling,...

Solved • Oct 31, 2018

Molarity

Q. Neurotransmitters are molecules that are released by nerve cells to other cells in our bodies, and are needed for muscle motion, thinking, feeling,...

Solved • Oct 31, 2018

Molarity

Q. How many milliliters of a 6.00 M NaOH solution are needed to provide 0.355 mol of NaOH?

Solved • Oct 31, 2018

Molarity

Q. Calculate the molarity of a solution prepared by dissolving 12.5 g of Na2CrO4 in enough water to produce a solution with a volume of 750. mL .

Solved • Oct 31, 2018

Molarity

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

Molarity

Q. What is the molarity of a solution that is made by dissolving 3.68 g of sucrose (C12H22O11) in sufficient water to form 275.0 mL of solution?

Solved • Oct 31, 2018

Molarity

Q. How many grams of ethanol, CH3CH2OH, should you dissolve in water to make 1.00 L of vodka (which is an aqueous solution that is 6.86 M ethanol)?

Solved • Oct 31, 2018

Molarity

Q. (a) How many grams of ethanol, CH3CH2OH, should you dissolve in water to make 1.00 L of vodka (which is an aqueous solution that is 6.86 M ethanol)...

Solved • Oct 31, 2018

Molarity

Q. One cup of fresh orange juice contains 124 mg of ascorbic acid (vitamin C, C6H8O6).Given that one cup = 237.2 mL, calculate the molarity of vitamin...

Solved • Oct 31, 2018

Molarity

Q. A strontium hydroxide solution is prepared by dissolving 10.45 g of Sr(OH)2 in water to make 53.00 mL of solution.What is the molarity of this solu...

Solved • Oct 31, 2018

Molarity

Q. The average adult human male has a total blood volume of 4.8 L .If the concentration of sodium ion in this average individual is 0.136 M, what i...

Solved • Oct 31, 2018

Molarity

Q. The concentration of alcohol (CH3CH2OH) in blood, called the "blood alcohol concentration" or BAC, is given in units of grams of alcohol per 100 mL...

Solved • Oct 31, 2018

Molarity

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

Molarity

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

Molarity

Q. Write a detailed set of instructions for making two solutions: (1) 100 mL of 16 MNaOH from solid sodium hydroxide and (2) 1.00 L of 0.1 M NaOH from...

Solved • Oct 31, 2018

Molarity

Q. Write a detailed set of instructions for making two solutions: (1) 100 mL of 16 MNaOH from solid sodium hydroxide and (2) 1.00 L of 0.1 M NaOH from...

Solved • Oct 31, 2018

Molarity

Q. What mass of KBr (in grams) should you use to make 350.0 mL of a 1.60 M solution of KBr?

Solved • Oct 31, 2018

Molarity

Q. What volume, in milliliters, of a 0.150 M solution of KCl contains 2.55 g of the compound?

Solved • Oct 31, 2018

Molarity

Q. How many grams of sucrose (C12H22O11) are in 1.50 L of a 0.771 M sucrose solution?

Solved • Oct 31, 2018

Molarity

Q. What volume of 0.220 M ethanol solution contains each of the following number of moles of ethanol?1.23 mol ethanol

Solved • Oct 31, 2018

Molarity

Q. What volume of 0.220 M ethanol solution contains each of the following number of moles of ethanol?1.3×10−2 mol ethanol

Solved • Oct 31, 2018

Molarity

Q. Calculate the molarity of each of the following solutions.72.9 g C2H6O in 2.35 L of solution        

Solved • Oct 31, 2018

Molarity

Q. What is the molarity of a solution containing 55.8 g of MgCl2 dissolved in 1.00 L of solution?

Solved • Oct 31, 2018

Molarity

Q. What mass (in grams) of Mg(NO3)2 is present in 145 mL of a 0.150 M solution of Mg(NO3)2?

Solved • Oct 31, 2018

Molarity

Q. A laboratory procedure calls for making 410.0 mL of a 1.2 M NaNO3 solution.What mass of NaNO3 (in g) is needed?

Solved • Oct 31, 2018

Molarity

Q. A chemist wants to make 6.0 L of a 0.310 M CaCl2 solution.What mass of CaCl2 (in g) should the chemist use?

Solved • Oct 31, 2018

Molarity

Q. Calculate the molarity of each of the following solutions.4.25 mol of LiCl in 2.90 L solution

Solved • Oct 31, 2018

Molarity

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

Solved • Oct 31, 2018

Molarity

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

Solved • Oct 31, 2018

Molarity

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

Solved • Oct 31, 2018

Molarity

Q. How many moles of KCl are contained in each of the following?1.7 L of a 0.86 M KCl solution

Solved • Oct 31, 2018

Molarity

Q. How many moles of KCl are contained in each of the following?120 mL of a 1.81 M KCl solution

Solved • Oct 31, 2018

Molarity

Q. What is molarity?

Solved • Oct 31, 2018

Molarity

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

Molarity

Q. How many moles of solute particles are present in 1 mL of each of the following aqueous solutions? (c) 0.08 M pyridine (C5H5N)

Solved • Oct 30, 2018

Molarity

Q. How many moles of solute particles are present in 1 mL of each of the following aqueous solutions?(a) 0.02 M CuSO4 

Solved • Oct 30, 2018

Molarity

Q. How many moles of solute particles are present in 1 L of each of the following aqueous solutions?(c) 10–4 M KHSO4 

Solved • Oct 30, 2018

Molarity

Q. How many moles of solute particles are present in 1 L of each of the following aqueous solutions?(b) 0.065 M HNO3 

Solved • Oct 30, 2018

Molarity

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

Molarity

Q. Calculate the molarity of each aqueous solution:(a) 0.82 g of ethanol (C2H5OH) in 10.5 mL of solution

Solved • Oct 30, 2018

Molarity

Q. Part A How many grams of ethanol, CH3CH2OH, should you dissolve in water to make 1.60 L of vodka (which is an aqueous solution that is 6.86 M ethan...

Solved • Oct 24, 2018

Molarity

Q. How many grams of solute are present in 655 mL of 0.380 M KBr?

Solved • Oct 23, 2018

Molarity

Q. Calculate the molarity of the two solutions. a) 0.550 mol of NaOH in 2.70 L of solution. b) 12.7 g of NaCl in 715 mL of solution. 

Solved • Oct 23, 2018

Molarity

Q. If 2.23g of CuNO3 is dissolved in water to make a 0.490 M solution, what is the volume of the solution? 

Solved • Oct 23, 2018

Molarity

Q. How would you prepare 1.00 L of a 0.50-M solution of s  odium carbonate from the pure solid?

Solved • Oct 17, 2018

Molarity

Q. How would you prepare 1.00 L of a 0.50-M solution of NiCl 2 from the salt NiCl 2 • 6 H2O?

Solved • Oct 17, 2018

Molarity

Q. Describe how you would prepare 2.00 L of 0.100 M K2CrO4 from solid K2CrO4.

Solved • Oct 17, 2018

Molarity

Q. Describe how you would prepare 2.00 L of 0.250 M NaOH from solid NaOH.

Solved • Oct 17, 2018

Molarity

Q. A solution of ethanol (C2H5OH) in water is prepared by dissolving 75.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of sol...

Solved • Oct 17, 2018

Molarity

Q. Calculate the molarity of a 184.6-mg sample of K 2Cr2O7 is dissolved in enough water to make 500.0 mL of solution.

Solved • Oct 17, 2018

Molarity

Q. What volume of a 0.20-M K2SO4 solution contains 57 g of K2SO4?

Solved • Oct 16, 2018

Molarity

Q. A 2.00-L bottle of a solution of concentrated HCl was purchased for the general chemistry laboratory. The solution contained 868.8 g of HCl. What i...

Solved • Oct 16, 2018

Molarity

Q. There is about 1.0 g of calcium, as Ca2+, in 1.0 L of milk. What is the molarity of Ca2+ in milk?

Solved • Oct 16, 2018

Molarity

Q. Calculate the molarity of each of the following solutions:(c) 0.001 mg Cd2+ in 0.100 L, the maximum permissible concentration of cadmium in drinkin...

Solved • Oct 16, 2018

Molarity

Q. Calculate the molarity of each of the following solutions: (a) 293 g HCl in 666 mL of solution, a concentrated HCl solution

Solved • Oct 16, 2018

Molarity

Q. Calculate the molarity of each of the following solutions:(c) 1.49 kg of isopropyl alcohol, C3H7OH, in 2.50 L of solution, the concentration of iso...

Solved • Oct 16, 2018

Molarity

Q. Consider this question: What is the molarity of HCl if 35.23 mL of a solution of HCl contain 0.3366 g of HCl? (a) Outline the steps necessary to an...

Solved • Oct 16, 2018

Molarity

Q. Consider this question: What is the molarity of KMnO4 in a solution of 0.0908 g of KMnO4 in 0.500 L of solution? (a) Outline the steps necessary to...

Solved • Oct 16, 2018

Molarity

Q. Calculate the number of moles and the mass of the solute in each of the following solutions:(d) 10.5 L of 3.716 M (NH4)2SO4, a liquid fertilizer

Solved • Oct 16, 2018

Molarity

Q. Calculate the number of moles and the mass of the solute in each of the following solutions: (a) 325 mL of 8.23 × 10−5 M KI, a source of iodine in ...

Solved • Oct 16, 2018

Molarity

Q. Calculate the number of moles and the mass of the solute in each of the following solutions: (a) 2.00 L of 18.5 M H2SO4, concentrated sulfuric acid

Solved • Oct 16, 2018

Molarity

Q. Consider this question: What is the mass of solute in 200.0 L of a 1.556-M solution of KBr? (a) Outline the steps necessary to answer the question....

Solved • Oct 16, 2018

Molarity

Q. Consider this question: What is the mass of the solute in 0.500 L of 0.30 M glucose, C6H12O6, used for intravenous injection? (a) Outline the steps...

Solved • Oct 16, 2018

Molarity

Q. Determine the molarity of each of the following solutions:(f) 0.000889 g of glycine, C2H5NO2, in 1.05 mL of solution

Solved • Oct 16, 2018

Molarity

Q. Determine the molarity of each of the following solutions:(d) 2.76 kg of CuSO4∙5H2O in 1.45 L of solution

Solved • Oct 16, 2018

Molarity

Q. Determine the molarity of each of the following solutions:(c) 20.54 g of Al(NO3)3 in 1575 mL of solution

Solved • Oct 16, 2018

Molarity

Q. Determine the molarity of each of the following solutions:(b) 0.515 g of H2SO4 in 1.00 L of solution

Solved • Oct 16, 2018