An analysis was conducted to determine the potability of a 35.0-mg sample of tap water. The results revealed that the sample contain 1.8 x 10-3 μg of Lead (Pb). According to the Philippine National Standards of Drinking Water of 2017, the parameter for safe drinking water has a maximum allowable level (MAL) of 0.01 ppm of Lead (Pb) concentration. Determine whether the sample tap water is potable or not (through calculations), and briefly explain your answer.

Q: A student dissolves 17. g of methanol (CH3OH) in 500. mL of a solvent with a density of 1.11 g/mL.…

A:

Q: A student dissolves 11. g of glucose (C6H1206) in 175. mL of a solvent with a density of 0.94 g/mL.…

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Q: What is the normality of a solution that contains 70 grams of HCl in 1 L of H2O?

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: Dilution means adding water to something so that the ratio of solute to solvent is less than in the…

A: When the amount of solute is dissolved in a solvent to make a homogenous mixture are known as…

Q: A student dissolves 13. g of aniline (C6H5NH₂) in 175. mL of a solvent with a density of 0.89 g/mL.…

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Q: A student dissolves 7.9 g of styrene (CHg) i in 325. mL of a solvent with a density of 0.84 g/mL.…

A: We have been given volume of solvent = 325mL, density of solvent= 0.84g/mL and mass of styrene =…

Q: A 5.04 g sample of a solid containing Ni is dissolved in 20.0 mL water. A 5.00 mL aliquot of this…

A: concentration of Ni in 20mL = 5.53ppm x dilution factor…

Q: A student dissolves 19. g of phenol (CH₂OH) in 350. mL of a solvent with a density of 0.82 g/mL. The…

A: Given:  Mass of phenol is 19g. Volume of solvent is 350mL. Density of solvent is 0.82 g/mL. To find:…

Q: A student dissolves 6.6g of phenol C6H5OH in 375.mL of a solvent with a density of 0.82/gmL…

A: The number of moles for a given compound or a molecule refers to the ratio of its mass to the…

Q: A student dissolves 15. g of phenol (CH5OH)i in 300. mL of a solvent with a density of 0.81 g/mL.…

A: Given,mass of phenol ( C6H5OH ) = 15. gvolume of solvent = 300. mLdensity of solvent = 0.81 g/mL

Q: Calculations: Determine the molarities of Solutions 1, 2, 3 and 4. Apply the rules of significant…

A: Solution: By defination, molarity is nothing but the ratio of moles of solute in given liter of the…

Q: 3. In the United States, drinking water cannot contain more than 5 x 10-8 gram of arsenic per gram…

A:

Q: What is 2.7 x 10^-3 grams of lead (Pb) per gram of solution?a. 2.7 ppmb. 2700 ppbc. 2700 ppmd. 2.7…

A: ppm is parts per millionppb is parts per billion

Q: A student dissolves 4.9g of methanol CH3OH in 275.mL of a solvent with a density of 1.06/gmL…

A: Given information: Mass of solute = 4.9 g Volume (V) = 275 mL                      = 0.275 L Density…

Q: What is the boiling point of an aqueous solution of 18.32 grams of sucrose, a non-electrolyte…

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Q: A certain liquid X has a normal freezing point of 7.10°C and a freezing point depression constant…

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Q: An experimental attempt was to convert 2000 cm^3 of a solution consists of 0.96 ethanol into another…

A: Initially, for 0.96 ethanol solution,Given that,The equivalent volume of ethanol () = Total volume…

Q: Q2. 10 g of NaOH is dissolved in 500 mL of water. Calculate the molarity of this solution. (Molar…

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Q: A 1295 mL sample of drinking water was found to contain 91.5 mg of lead. Calculate the concentration…

A:

Q: A student dissolves 19. g of methanol (CH,OH) in 425. mL of a solvent with a density of 0.98 g/mL.…

A:

Q: The solubility in water of ionic compound X is measured and found to be 0.339 mL at 10. °C.…

A: Given solubility = 0.339 g/ml

Q: A dioxin-contaminated water source contains 0.085% dioxin by mass. How much dioxin is present in 2.5…

A:

Q: A student dissolves 12. g of methanol (CH,OH) in 300. mL of a solvent with a density of 0.95 g/mL.…

A: Molarity is one of the concentration term which is used to define the concentration of a solute in a…

Q: In many areas, the drinking water standard for nitrate ions is 5.00 ppb. Calculate the mass, in μg,…

A:

Q: A student dissolves 2.6 g of aniline (C6H5NH₂) in 175. mL of a solvent with a density of 0.90 g/mL.…

A:

Q: A pool contains 4500 gallons of 1.4% chlorine solution, which means that 1 4% of the liquid in the…

A: The pool contains 4500 gallons of liquid and 1.4 % of this liquid is chlorine and the rest is water.…

Q: You place 0.03531g of CaCl₂ into a 500.0 mL volumetric flask and dissolve the solid with water to…

A: The question is based on the concepts of solutions . we need to calculate PPM concentration of…

Q: Concentrations of lead in the bloodstream are often quoted in units of µg/dL.Averaged over the…

A: µg/dL: It is the unit used to express the concentration. The abbreviation for this unit is…

Q: A 27.0 wt% solution of HBr in water has a density of 1.50 g/mL. Calculate the formal concentration…

A: We will first calculate formal concentration of HBr , then answer the remaining questions.

Q: A student dissolves 12. g of phenol (CH OH) in 350. mL of a solvent with a density of 1.12 g/mL. The…

A: given that:  Mass of phenol(solute)= 12.g  Volume of solvent = 350.ml Density = 1.12g/ml Volume does…

Q: A Pasig river water sample was analyzed by the students and found to have 25.2 milligrams of lead in…

A: Concentration of any solution can be calculated in terms of ppm. ppm stands for parts per million…

Q: A student dissolves 8.0 g of phenol (CH₂OH) in 125. mL of a solvent with a density of 1.06 g/mL. The…

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: A student dissolves 8.3 g of phenol (C,H,OH) in 325. mL of a solvent with a density of 1.12 g/mL.…

A: Molality - It is defined as moles of solute dissolved per kilogram of solution. Its unit is moles/kg…

Q: Why do Sedimentation and filtration is important in water treatment? Is a period of time important…

A: The sedimentation process is most important process which is imposed for the reduction of…

Q: You want to prepare 42.0 L of solution with a contamination of 50.0 mg/L copper.  You start with…

A: Given,The volume of water = 42.0 LThe concentration of Cu in water = 50.0 mg/L

Q: Suppose a group of volunteers is planning to build a park near a local lake. The lake is known to…

A: Find the mass of sample of water using the formula given below.convert g to kg.

Q: The pesticide DDT is used to kill malaria-carrying mosquitoes. Unfortunately, it also affects other…

A: Given: Mass of DDT = 0.055 mg  Volume of water sample = 250.0 mL And density of water = 1.00 g/mL

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.