05:30Calculating Molarity | Chemical Calculations | Chemistry | FuseSchoolFuseSchool - Global Education219
05:41Concentration and Molarity explained: what is it, how is it used + practice problemsCrash Chemistry Academy254
07:38How to Do Solution Stoichiometry Using Molarity as a Conversion Factor | How to Pass ChemistryMelissa Maribel314
Multiple ChoiceHypernatremia is a medical condition where a patient has high levels of sodium in their blood, and is the result of the body containing too little water. A patient has a measured sodium level of 165 mM. If 30.0 mL of their blood were drawn, what mass (in ng) of sodium would be present?43612Has a video solution.
Multiple Choice2.64 grams of an unknown compound was dissolved in water to yield 150 mL of solution. The concentration of the solution was 0.075 M. What was the molecular weight of the substance?45321Has a video solution.
Multiple ChoiceA solution with a final volume of 750.0 mL was prepared by dissolving 30.00 mL of benzene (C6H6, density = 0.8787 g/mL) in dichloromethane. Calculate the molarity of benzene in the solution.51414Has a video solution.
Multiple ChoiceWhat is the molarity of a solution prepared by dissolving 5.00 g of NaCl in 500.0 mL of water?104
Textbook QuestionWhat is the molarity of a solution prepared by dissolving 10.19 g of ethanol (CH3CH2OH) in enough water to produce 250.0 mL of solution? (LO 4.1) (a) 0.8848 M (b) 18.08 M (c) 1.130 M (d) 0.01808 M5761Has a video solution.
Textbook QuestionWhat is the molarity of Na+ in a solution of NaCl whose salinity is 5.6 if the solution has a density of 1.03 g>mL?312Has a video solution.
Textbook QuestionWhat is the molarity of each of the following solutions: (b) 5.25 g of Mn1NO322 # 2 H2O in 175 mL of solution,307Has a video solution.
Textbook QuestionHow many moles of solute are present in each of the following solutions? (b) 175 mL of 0.67 M glucose (C6H12O6)478Has a video solution.
Textbook QuestionHow many moles of solute are present in each of the following solutions? (a) 35.0 mL of 1.200 M HNO3490Has a video solution.
Textbook QuestionHow many grams of solute would you use to prepare each of the following solutions? (b) 167 mL of 0.200 M boric acid (H3BO3)364Has a video solution.
Textbook QuestionHow many grams of solute would you use to prepare each of the following solutions? (a) 250.0 mL of 0.600 M ethyl alcohol (C2H6O)407Has a video solution.
Textbook QuestionHow many milliliters of a 0.45 M BaCl2 solution contain 15.0 g of BaCl2?460Has a video solution.
Textbook QuestionHow many milliliters of a 0.350 M KOH solution contain 0.0171 mol of KOH?163Has a video solution.
Textbook QuestionThe density of acetonitrile 1CH3CN2 is 0.786 g>mL and the density of methanol 1CH3OH2 is 0.791 g>mL. A solution is made by dissolving 22.5 mL of CH3OH in 98.7 mL of CH3CN. (c) Assuming that the volumes are additive, what is the molarity of CH3OH in the solution?542Has a video solution.
Textbook QuestionThe sterile saline solution used to rinse contact lenses can be made by dissolving 400 mg of NaCl in sterile water and diluting to 100 mL. What is the molarity of the solution?10551Has a video solution.
Textbook QuestionThe concentration of glucose (C6H12O6) in normal blood is approximately 90 mg per 100 mL. What is the molarity of the glucose?1176Has a video solution.
Textbook QuestionAn aqueous NaCl solution is made using 112 g of NaCl diluted to a total solution volume of 1.00 L. Calculate the molarity of the solution. (Assume a density of 1.08 g>mL for the solution.)337Has a video solution.
Textbook QuestionCalculate the number of moles of solute present in each of the following solutions: (a) 255 mL of 1.50 M HNO31aq2,884Has a video solution.
Textbook QuestionAn aqueous KNO3 solution is made using 72.5 g of KNO3 diluted to a total solution volume of 2.00 L. Calculate the molarity of the solution. (Assume a density of 1.05 g>mL for the solution.)544Has a video solution.
Textbook QuestionThe estimated concentration of gold in the oceans is 1.0 * 10^-11 g/mL. (a) Express the concentration in mol/L.124Has a video solution.
Textbook QuestionCalculate the molarity of each solution. c. 32.4 mg NaCl in 122.4 mL of solution1364Has a video solution.
Textbook QuestionCalculate the molarity of each solution. a. 3.25 mol of LiCl in 2.78 L solution867Has a video solution.
Textbook QuestionHow many grams of solute would you use to prepare the following solutions? (b) 1.50 L of 0.250 M glucose (C6H12O6)9671Has a video solution.
Textbook QuestionHow many grams of solute would you use to prepare the following solutions? (a) 500.0 mL of 1.25 M NaOH499Has a video solution.
Textbook QuestionDescribe how you would prepare each of the following aqueous solutions: (a) 1.50 L of 0.110 M 1NH422SO4 solution, starting with solid 1NH422SO4;5981Has a video solution.
Textbook QuestionHow would you prepare 500 mL of a 0.330 M solution of CaCl2 from solid CaCl2? Specify the glassware that should be used.380Has a video solution.
Textbook QuestionHow would you prepare 250 mL of a 0.100 M solution of fluoride ions from solid CaF2? Specify the glassware that should be used.252Has a video solution.
Textbook QuestionAssuming that seawater is an aqueous solution of NaCl, what is its molarity? The density of seawater is 1.025 g/mL at 20 °C, and the NaCl concentration is 3.50 mass %.6841Has a video solution.
Textbook QuestionCommercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g>mL. What is the molarity of this solution?1295Has a video solution.
Textbook QuestionBrass is a substitutional alloy consisting of a solution of copper and zinc. A particular sample of red brass consisting of 80.0 % Cu and 20.0 % Zn by mass has a density of 8750 kg>m3. (b) What is the molarity of Zn in the solution?598Has a video solution.
Textbook QuestionHow many moles of KCl are contained in each solution? c. 114 mL of a 1.85 M KCl solution212Has a video solution.
Textbook QuestionHow many moles of KCl are contained in each solution? b. 1.8 L of a 0.85 M KCl solution310Has a video solution.
Textbook QuestionHow many moles of KCl are contained in each solution? a. 0.556 L of a 2.3 M KCl solution1810Has a video solution.
Textbook QuestionWhat volume of 0.200 M ethanol solution contains each amount in moles of ethanol? c. 1.2 * 10 - 2 mol ethanol233Has a video solution.
Textbook QuestionPropranolol 1C16H21NO22, a so-called beta-blocker that is used for treatment of high blood pressure, is effective at a blood plasma concentration of 50 ng/L. Express this concen- tration of propranolol in the following units: (b) Molarity224Has a video solution.
Textbook QuestionWhat volume of 0.200 M ethanol solution contains each amount in moles of ethanol? b. 1.22 mol ethanol267Has a video solution.
Textbook QuestionWhat volume of 0.200 M ethanol solution contains each amount in moles of ethanol? a. 0.45 mol ethanol943Has a video solution.
Textbook QuestionResidues of the herbicide atrazine 1C8H14ClN52 in water can be detected at concentrations as low as 0.050 mg>L. Express this concentration of atrazine in the following units: (b) Molarity114Has a video solution.
Textbook Question(b) Can you identify which one between 0.10 mol ZnCl2 and 0.1M ZnCl2 contains more Zn2+ ion? Why?195Has a video solution.
Textbook QuestionA laboratory procedure calls for making 400.0 mL of a 1.1 M NaNO3 solution. What mass of NaNO3 (in g) is needed?14031Has a video solution.
Textbook QuestionA chemist wants to make 5.5 L of a 0.300 M CaCl2 solution. What mass of CaCl2 (in g) should the chemist use?1827Has a video solution.
Textbook QuestionHow would you prepare each of the following solutions? (a) A 0.150 M solution of glucose in water9Has a video solution.
Textbook Question(c) How many milliliters of a 6.00 M NaOH solution are needed to provide 0.350 mol of NaOH?755Has a video solution.
Textbook QuestionHow would you prepare each of the following solutions? (b) 100 mL of an aqueous solution whose K+ concentration is 0.075 M291Has a video solution.
Textbook QuestionHow would you prepare 165 mL of a 0.0268 M solution of benzoic acid 1C7H6O22 in chloroform 1CHCl32?185Has a video solution.
Textbook Question(c) How many milliliters of 6.1 M HCl solution are needed to obtain 0.150 mol of HCl?369Has a video solution.
Textbook Question(b) How many moles of KBr are present in 150 mL of a 0.112 M solution?583Has a video solution.
Textbook QuestionHow would you prepare 250 mL of a 0.325 M solution of benzoic acid 1C7H6O22 in chloroform 1CHCl32?337Has a video solution.
Textbook QuestionA person suffering from hyponatremia has a sodium ion concentration in the blood of 0.118 M and a total blood volume of 4.6 L. What mass of sodium chloride would need to be added to the blood to bring the sodium ion concentration up to 0.138 M, assuming no change in blood volume?701Has a video solution.
Textbook QuestionWhich of the following solutions is more concentrated? (a) 0.500 M KCl or 0.500 mass % KCl in water232Has a video solution.
Textbook QuestionA solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25 °C. The final volume of the solution is 118 mL. The densities of methanol and water at this temperature are 0.782 g>mL and 1.00 g>mL, respectively. For this solution, calculate the concentration in each unit. a. molarity632Has a video solution.
Textbook QuestionHousehold hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g>mL.)10191Has a video solution.
Textbook QuestionThe concentration of alcohol 1CH3CH2OH2 in blood, called the 'blood alcohol concentration' or BAC, is given in units of grams of alcohol per 100 mL of blood. The legal definition of intoxication, in many states of the United States, is that the BAC is 0.08 or higher. What is the concentration of alcohol, in terms of molarity, in blood if the BAC is 0.08?1706Has a video solution.
Textbook QuestionOne brand of laundry bleach is an aqueous solution containing 4.55% sodium hypochlorite (NaOCl) by mass. What is the molarity of this solution? (Assume a density of 1.02 g>mL.)8581Has a video solution.
Textbook Question(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)? (b) Using the density of ethanol (0.789 g/mL), calculate the volume of ethanol you need to make 1.00 L of vodka.919Has a video solution.
Textbook QuestionThe density of a 16.0 mass % solution of sulfuric acid in water is 1.1094 g/mL at 25.0 °C. What is the molarity of the solution?763Has a video solution.
Textbook QuestionEthylene glycol, C2H6O2, is the principal constituent of auto-mobile antifreeze. If the density of a 40.0 mass % solution of ethylene glycol in water is 1.0514 g/mL at 20 °C, what is the molarity?169Has a video solution.
Textbook Questionmedical 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 will be delivered to a dish containing 2.0 * 105 cancer cells in 5.00 mL of aqueous fluid. What is the ratio of drug molecules to the number of cancer cells in the dish?927Has a video solution.
Textbook QuestionCalicheamicin gamma-1, C55H74IN3O21S4, is one of the most potent antibiotics known: one molecule kills one bacterial cell. Describe how you would (carefully!) prepare 25.00 mL of an aqueous calicheamicin gamma-1 solution that could kill 1.0 * 108 bacteria, starting from a 5.00 * 10-9M stock solution of the antibiotic.452Has a video solution.
Textbook QuestionPure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25 C. Calculate the molarity of a solution of acetic acid made by dissolving 20.00 mL of glacial acetic acid at 25 C in enough water to make 250.0 mL of solution.2927Has a video solution.
Textbook QuestionBronze is a solid solution of Cu(s) and Sn(s); solutions of metals like this that are solids are called alloys. There is a range of compositions over which the solution is considered a bronze. Bronzes are stronger and harder than either copper or tin alone. (b) Based on part (a), calculate the concentration of the solute metal in the alloy in units of molarity, assuming a density of 7.9 g/cm3.1198Has a video solution.
Textbook QuestionNeurotransmitters are molecules that are released by nerve cells to other cells in our bodies, and are needed for muscle motion, thinking, feeling, and memory. Dopamine is a common neurotransmitter in the human brain. (c) Experiments with rats show that if rats are dosed with 3.0 mg/kg of cocaine (that is, 3.0 mg cocaine per kg of animal mass), the concentration of dopamine in their brains increases by 0.75 mM after 60 seconds. Calculate how many molecules of dopamine would be produced in a rat (average brain volume 5.00 mm3) after 60 seconds of a 3.0 mg/kg dose of cocaine.184Has a video solution.
Textbook QuestionThe density of a 20.0% by mass ethylene glycol (C2H6O2) solution in water is 1.03 g/mL. Find the molarity of the solution.13222Has a video solution.
Textbook QuestionHard water contains Ca2+, Mg2+, and Fe2+, which interfere with the action of soap and leave an insoluble coating on the insides of containers and pipes when heated. Water softeners replace these ions with Na+. Keep in mind that charge balance must be maintained. (a) If 1500 L of hard water contains 0.020 M Ca2+ and 0.0040 M Mg2+, how many moles of Na+ are needed to replace these ions?915Has a video solution.
Textbook QuestionAmmonium chloride, NH4Cl, is a very soluble salt in water. (c) If you dissolve 14 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?925Has a video solution.
Textbook QuestionIn 2014, a major chemical leak at a facility in West Virginia released 28,390 L of MCHM (4-methylcyclohexylmethanol, C8H16O) into the Elk River. The density of MCHM is 0.9074 g/mL. (a) Calculate the initial molarity of MCHM in the river, assuming that the first part of the river is 2.00 m deep, 90.0 m wide, and 90.0 m long.175Has a video solution.
Textbook QuestionRitalin is the trade name of a drug, methylphenidate, used to treat attention-deficit/hyperactivity disorder in young adults. The chemical structure of methylphenidate is (c) Ritalin has a half-life of 3 hours in the blood, which means that after 3 hours the concentration in the blood has decreased by half of its initial value. For the man in part (b), what is the concentration of Ritalin in his blood after 6 hours?82Has a video solution.
Textbook QuestionA railroad tank car derails and spills 36 tons of concen-trated sulfuric acid. The acid is 98.0 mass% H2SO4 and has a density of 1.836 g/mL. (a) What is the molarity of the acid?186Has a video solution.
Open QuestionWhich of the solutions have the same molar concentration as solution x?57Has a video solution.
Open QuestionDetermine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 ml of solution.12Has a video solution.
