Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is approximately 0.16 M. A saline solution for contact lenses is prepared to match the physiological concentration. If you purchase 25 mL of contact lens saline solution, how many grams of sodium chloride have you bought?

Q: A student has 500.0 mL of a 0.1111 M aqueous solution of NazCO3 to use in an experiment. She…

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Q: Normal saline solution (the kind you receive intravenously for medical purposes) is made by…

A: Molarity is defined as the number of moles of solute present in 1 liter of solution.  Mathematically…

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

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Q: The total volume of 0.25 M H2SO4 used was 27.9 mL. Calculate what volume of 5 M ammonia solution…

A: Molarity of H2SO4 = 0.25 MMolarity of NH3 = 5 M

Q: What volume (in mL ) of 0.160mol / L calcium hydroxide , Ca(OH) 2 (aq) , is needed to completely…

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Q: you took 40.7 grams of KCl and dissolved it in 0.375 L of water, what would be the molar…

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Q: In a terrible accident, a solution consisting of 2.59 kg of nitric acid, HNO3, was spilled on the…

A: Given , mass of nitric acid = 2.59 kg = 2.59×103 g mass of sodium carbonate = 2.00 kg = 2.00×103 kg

Q: You would like to make 3L of 0.10 M HCl(aq) solution from a stock solution with a concentration of…

A: • The values provided in the question are:-       i) Initial concentration of HCl solution, M1 =…

Q: Determine the concentrations of MgCl2, Mg2+, and Cl- in a solution prepared by dissolving 1.88 x…

A: Step 1: Mass of MgCl2, m = 1.88 x 10-4 g = 0.000188 gVolume of MgCl2 solution, V = 2.25 LMolar mass…

Q: To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a…

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Q: Calculate the volume in mL of 1.50 M K₂SO4 (aq) that must be diluted with water to prepare 250 mL of…

A: Given, Stock solution of K2SO4 Concentration K2SO4 solution (M1) = 1.50 M Volume of the K2SO4…

Q: Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution…

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Q: A0.4334 g sample of canned tuna was analyzed by the Kjeldahl method; 24.61 mL of 0.1180 M HCl were…

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Q: In the laboratory, a student dilutes 26.7 mL of a 7.32 M hydrochloric acid solution to a total…

A: Initial Molarity, M1 = 7.32 M Initial volume, V1 = 26.7 mL Final Molarity, M2 = unknown Final…

Q: You measure 7.47.4 mL of a 50%50% NaOHsolution by weight (its density is 1.53 g mL−1)and dilute it…

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Q: A student is given an antacid tablet that weighs 5.9200 g. The tablet is crushed and 4.8270 g of the…

A: Given : Volume of NaOH required to neutralise stomach acid after antacid = 11.7 mL And volume of…

Q: A student needs exactly 25.0 mL of a 1.5M solution of NaOH (molar mass: 40.00 g/mol). They have…

A: Given: Concentration of NaOH = 1.5 M Volume of solution required = 25.0 mL = 0.025 L…

Q: volume

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Q: Suppose that a lake was contaminated with nitric acid (HNO3), and another chemical was needed to…

A: Given that : Suppose that a lake was contaminated with nitric acid (HNO3), and another chemical was…

Q: A 11.00 mL solution of Na2HPO4 is combined with a 23.00 mL solution of 21.00 mM NaH2PO4. The Na +…

A: The objective is to determine the concentration of Na2HPO4 in the original solution. Given…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 567 mg of chloride…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: A concentration of carbon monoxide of 4000  ppm  (0.400 %  by mass) in air is lethal in about half…

A: Given: Volume of car = 2.9 m3. Since 1 m3 = 1000 L Hence volume of car in L = 2900 L

Q: A chemical analysis shows that a sample contains 250.0 micrograms ofUranium in 4.00 x 10 4 grams of…

A: In the given problem the information provided is - A sample of observation contains grams of Uranium…

Q: A quantity of 14.68 mL of a KOH solution is needed to neutralize 0.3748 g of KHP. What is the…

A: KOH reacts with KHP to form K2P and water. The equation for the balanced chemical reaction is as…

Q: Chlor-alkali plants electrolyze Nacl to produce the commodity chemicals caustic soda and chlorine…

A: The effluent can contain upto 2.5×10-9 mol/L Hg Weight of Mercury= 1.42g

Q: The hydrate is not fully converted to the anhydrous form, which could be a source of mistake.…

A: In order to find the accurate value of an ionic compound's water ratio, the hydrated ionic compound…

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

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Q: What volume (in mL) of a 2.60 M solution of CH₃CH₂CH₂OH must you add to a 1.00 L volumetric flask so…

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Q: In order to prepare a certain volume of solution with a desired concentration, you would need to…

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Q: How many grams of NaCl are in a 635mL solution of 3.00 M NaCl(aq)?

A: Molarity of solution = 3.00 M Volume of solution = 635 mL = (635/1000) L = 0.635 L Volume of…

Q: A student is given an antacid tablet that weighs 5.9320 g. The tablet is crushed and 4.9780 g of the…

A: Given that 29 mL of the solution neutralizes 25 mL of the original solution.  1 mL of the NaOH will…

Q: Alcohol levels can be determined by reaction with dichromate (breathalyzer). C2H5OH(l) + 2…

A: The question is based on the concept of quantitative analysis . we need to calculate PPT of ethanol…

Q: color.  What is the concentration of the NaOH solution? The molar mass

A: At equivalent point,  Geq. of NaOH  = Geq. of KHP N1V1 = N2V2 M × 16.8 /1000 = 0.261/204 M = 0.076M

Q: onsider a 0.227 M aqueous solution of sodium hydroxide, NaOH.   A. How many grams of NaOH are…

A: #A: Given the molarity of NaOH = 0.227 M Required conversion factor: 0.227 mol NaOH = 1 L

Q: Assume household vinegar contains 5% acetic acid by weight and that the density of vinegar is the…

A: Solution Vinegar may be a bitter liquid consisting principally of carboxylic acid and water.…

Q: In a terrible accident, a solution consisting of 2.37 kg of nitric acid, HNO3, was spilled on the…

A: According to the question, the balanced chemical reaction between the nitric acid and sodium…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 687 mg of chloride…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: The solubility of aluminum sulfate (Al2(SO4)3) in water is 34.22 g per 100.0 mL of solution at a…

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Q: 7. A student weighs out exactly 1.562 grams of p-aminophenol and exactly 40 mL of water. After…

A: Provided amount of p-aminophenol=1.562g For the provided reaction Water act as a solvent and HCl act…

Q: Consider the following balanced chemical equation: Mg(OH)2 + 2HCl → 2H2O + MgCl2 How many grams of…

A: this question can be solved using law of equal proprotions.

Q: The concentration of sodium chloride in blood serum is 0.140 M. What volume of blood serum contains…

A: Molecular weight of NaCl = (23+35.5) = 58.5 gm/mol  So, 6.07 gm of NaCl = 6.07/58.5 = 0.10376 moles…

Q: You want to clean your whole bathtub (280 L) with vinegar but you can't afford 280 bottles of…

A: We are using here 100 mL of vinegar in 280 mL of bathtub then we can calculate the volume…

Q: Baking soda (sodium bicarbonate, NaHCO3) reacts with acids in foods to form carbonic acid (H2CO3),…

A: Baking soda or sodium bicarbonate reacts with lactic acid to give sodium salt of lactic acid along…

Q: You wish to prepare 100.0mL of an aqueous solution of NaCl (aq) that has a molarity of 0.55 M. What…

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Q: The maximum contaminant level of cyanide (CN) in drinking water as set by the the Environmental…

A: The maximum contamination level of the cyanide in the drinking water is 0.00020 g.L-1. This…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".