The Safe Drinking Water Act (SDWA) sets a limit for mercury—a toxin to the central nervous system—at 0.0020 ppm by mass. Water suppliers must periodically test their water to ensure that mercury levels do not exceed this limit. Suppose water becomes contaminated with mercury at twice the legal limit (0.0040 ppm). How much of this water would a person have to consumeto ingest 50.0 mg of mercury?

Q: How many grams of CaCl2 should be dissolved in 500? mL of water to make s 0.333 M solution?

A: Given  Volume                    = 500 mL          Molarity of solution = 0.333 M  Mass of CaCl2…

Q: 18 g of glucose, C6H1206 (Molar Mass = 180 g mol-1) is dissolved in 1 kg of water in a sauce pan. At…

A: When a solute is added to a pure solvent, it results into decrease of vapour pressure of pure…

Q: 8. Calculate the boiling point of a solution containing 312 g ethylene glycol (C2H6O2) dissolved in…

A: Answer :-  101.5 °C  The boiling point of solution containing 312 g ethylene glycol solution…

Q: The U.S. Environmental Protection Agency set a maximum contaminant level (MCL) for…

A: Given: The maximum contaminant level for tetrachloroethylene (TCE, C2Cl4) in drinking water = 0.005…

Q: A student placed 17.5 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve…

A: Mass of Glucose = 17.5 g The volume of water = 100. mL Moles of Glucose = Mass/ Molar mass…

Q: The solubility of NaCl in water at 0ᵒC is 35.7 g per 100 mL of water. A solution containing 406.8 g…

A: The chemical substance which is able to dissolve itself in a solvent and form a solution is called…

Q: What volume in L of concentrated potassium hydroxide solution (21.5 mol/L) is required to prepare…

A:

Q: how many grams of sucrose must be added to 475 ml of water to make 65% (w/w) solution?

A:

Q: What mass (in grams) of sodium nitrate must be dissolved in 0.1151 kg of water to prepare a solution…

A: Given : Mass of water = 0.1151 Kg = 115.1 g…

Q: 1. Suppose you had 58.44 g of NaCl and you dissolved it in exactly 2.00 L of water. What would be…

A: Here we are required to find the molarity of the given  solution

Q: Potassium nitrate has a lattice energy of – 163.8 kcal/mol and a heat of hydration of -155.5…

A: To solve the question, we need to convert the energy from kcal to kJ.  ∆Hlattice=-163.8 kcal1…

Q: The maximum contaminant level of fluoride (F−)(F−) in drinking water as set by the the Environmental…

A: Parts per million is abbreviated as ppm and is expressed as mg/L. 1 ppm=mgL

Q: A 2.28 L aqueous solution of KOH contains 199 g of KOH. The solution has a density of 1.29 g/mL.…

A: Molarity means in 1000 ml solution how many moles solute present. If x mol solute present in 1000ml…

Q: The Safe Drinking Water Act (SDWA) sets a limit for mercury-a toxin to the central nervous system-at…

A: From given  Initially we are converting the factor of ppm to mg/L and then we are calculating the…

Q: . The U.S. Environmental Protection Agency set a maximum contaminant level (MCL) for…

A: We know that 1 ppm = 1 mg / L That means 1 L of water contains 1 mg of the solute Given that the…

Q: An aqueous solution that contains 285 ppm of potassium nitrate (KNO3) is being used to feed plants…

A: The solution is as follows :

Q: Calculate the molarity of a solution made by dissolving 5.00 g of glucose (C6H12O6) in sufficient…

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: Explain briefly Maintenance of water balance and associated disorders?

A: In this question bee have to explain the maintenance of water balance and associated disorders.

Q: A Vitamin C packet is added to a glass of water containing 500.0 mL of solution. The Vitamin C…

A: We have to predict the concentration in ppm.

Q: What is the definition of a solution? What is the definition of solubility? Which one of these…

A: Since you have posted multiple questions as per guidelines we can answer only one . If you want…

Q: (Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,137 grams of water to…

A: Molality of a solution can be defined as the number of moles of solute dissolved per kilogram of the…

Q: When 13.62 g (about one tablespoon) of table sugar (sucrose, C12H22O11) is dissolved in 241.5 mL of…

A:

Q: What is the percent by mass of HCLO4 in the solution

A:

Q: The EPA has determined that the maximum safe level of lead ion in drinking water is 15 ppb. If a…

A: The solute is defined as the component of the solution present in a smaller proportion while a…

Q: (a) The EPA threshold for acceptable levels of lead ions inwater is <15 ppb. What is the molarity…

A: (a) Relation between ppb and Molarity is given as,                                   Given, 15 bbp…

Q: The freezing point of water H2O is 0.00°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: The depression in the freezing point is a colligative property and it is directly proportional to…

Q: Constant monitoring of acceptable concentrations of various dissolved substances is critical to keep…

A:

Q: Calculate the percent by volume of a solution composed of 78.0mL of ethanol and 130. mL of H2O.

A: By using the defination of percentage by volume we can solve this problem from given information.

Q: A person preparing a fish tank fills the tank with water that has been boiled (and then cooled).…

A: The increased temperature decreases the solubility of gases.

Q: Why do industries use so much of the world’s available fresh water? (b) Choose a specific industry…

A: Water is used in industries for variety of purposes such as ultrapure water is used in semiconductor…

Q: Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5…

A:

Q: 10.00 g NaCl is dissolved in 90.00 mL of water. Calculate the percent by mass-volume of the…

A: Given data - The mass of NaCl = 10.00g The volume of solution = 90 ml To calculate = m/V % of…

Q: What mass of ethylene glycol (C2H6O2, molar mass = 62.1 g/mol), the main component of antifreeze,…

A: Given data, molar mass of ethylene glycol  = 62.1 g/mol volume of water is 8.5 L  density of water…

Q: Calculate the boiling point of 178g of CaCO3 dissolved in 1kg of water?

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: Q5 i) List the factors that influence solution formation.       ii) Solubility of gases in water…

A:

Q: A solution contains 45.0 g of glucose, C6H12O6, dissolved in 175.0 g of water at 22C. Calculate the…

A: Given  Mass of Glucose = 45 gram  Mass of water = 175 gram Vapor pressure of water ( P) = 19.8 mmHg…

Q: The solubility of MnSO4 . H2O in water at 20 °C is 70 g per100 mL of water. (a) Is a 1.22 M solution…

A: a) Assuming we have 100 mL solution of MnSO4 . H2O. Hence moles of MnSO4 . H2O = molarity X volume…

Q: According to the EPA, when the concentration of lead in tap water reaches 15 ppb, certain remedial…

A: Ppb is parts per billion Ppm is parts per million 1000 ppb = 1 ppm 1 ppb        = 0.001 ppm 15 ppb…

Q: When 13.62 g (about one tablespoon) of table sugar (sucrose, C12H22O11) is dissolved in 241.5 mL of…

A:

Q: Give one example in which a high concentration of a solute is beneficial and one example in which…

A: High concentration of solute is hypotonic solution, The beneficial hypotonic solution is 3% NaCl…

Q: Given an intravenous solution, dextrose 10% in water, which contains 10.0 g dextrose monohydrate…

A:

Q: When lithium iodide (LiI) is dissolved in water, the solution becomes hotter.a. Is the dissolution…

A: When heat is released during a reaction, that process is called exothermic. If the heat is used…

Q: How many grams of sodium fluoride should be added to 100,000 L of drinking water containing 0.6 ppm…

A:

Q: According to the EPA, when the concentration of lead in tap water reaches 15 ppb, certain remedial…

A: We know ppb is parts per billion  Thus ppb concentration can be determined by  ppb = mass of…

Q: At room temperature, you feel that an unopened plastic, 2-L bottle of soda is really hard when  you…

A: To explain why a 2 L bottle of soda is hard to squeeze at room temperature.

Q: 100 90 NANO 80 70 60 CaCl 50 Pb(NO)2 40 NaCl KCI 30 20 KCIO, 10 Ce,(SO) 0 10 20 30 40 50 60 70 80 90…

A:

Q: What mass of NaCl is dissolved in 170 g of water in a 0.040 m solution?

A: Molality is defined as the number of moles of solute per kilogram of solvent.

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.