Concentrations of lead in the bloodstream are often quoted in units of µg/dL.Averaged over the entire country, the mean concentration of lead in the blood was measured to be 1.6 µg/dL in 2008. Express this concentration in ppb.

Q: A 15 meter by 12-meter pool of water has a depth of 2.2 meters. What mass of silver ion is present…

A: Volume = area x depth  Given,  15 meter by 12-meter pool, area = (15x12) m2 And depth = 2.2 m  Now,…

Q: potassium

A: Dear student, this question is related to molar concentration.

Q: The concentration of glucose in blood is usually about 0.10%(w/v). If 7.0 L of blood are in an…

A: The percentage weight by volume (%w/v) of a solution is one of the concentration terms used to…

Q: Calculate the Normality of an HBr solution which required 28.17 mL to neutralize 2.95 g Ca(OH)2.

A: Given: 1) Volume of HBr solution is 28.17 mL = 0.02817 L 2) Weight of Ca(OH)2 is 2.95 g. 3) Molar…

Q: 5. Determine the boiling point of a solution of 10 grams of a substance of molecular weight 94 g/mol…

A:

Q: A solution was made by adding 13.643 g of NaCl into 4.073*105 g of H2O. Calculate the concentration…

A:

Q: The sulfate ion level in a municipal water supply is given as 46.1 ppm. What is [SO42-] in this…

A: Answer: Concentration of sulfate ion given is 46.1ppm which means in 106g solution, 46.1g sulfate…

Q: 2). Helium gas, 3.0 x 10-4 g, is dissolved in 200 g of solution. Express this concentration in parts…

A: Parts per million (ppm) = mass of solute X 106/ mass of solution

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: Calculate the concentration in ppm of lead in a solution that contains 180.6 mg Pb per 1.54 kg of…

A:

Q: A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the density of the sample is…

A:

Q: An industrial facility discharges a waste that contains 130 mg/L hydrochloric acid at a rate of 12…

A: Given: 1) Discharge waste contains 130 mg/L of HCl. 2) Rate of discharge is 12 L/min.

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

A: Any process that improves the quality of water to make it suitable for a specific end-use is known…

Q: Distinguish among the terms solution, solute, solvent, colloid, and suspension?

A: A solution is a homogeneous mixture of two or more substances and the particle size is usually…

Q: 1. Helium gas, 3.00 x 104 g, is dissolved in 200.0 g of solution. Express this concentration in…

A: Parts per million is defined as the parts of solute present in 106 parts of solution.  arts per…

Q: Determine the mass of Ferrous ammonium sulphate ((NH4)2.Fe(SO4)2.6H2O) required to prepare 20 ppm…

A: For Ferrous Ammonium sulphate, Volume, V = 100 mL = 0.1L Concentration, C = 20 ppm Mass, m = ?

Q: Give three examples of How Dissolved Oxygen levels can change due to human interaction with the…

A: The three examples that how dissolved oxygen levels can change due to the human interaction with the…

Q: The concentration of Br− in a sample of seawater is 7.3 ⋅ 10−4 M. If a liter of seawater has a mass…

A:

Q: how many grams of solid CaCl2 should a student dissolve in water to prepare a 123mL aq solution of…

A: Required amount of a solute to prepare a solution of desired concentration can be calculated as…

Q: The concentration of O2 in seawater is 1.6 x 10-4 M at 25.0 °C. What is this concentration in ppm?…

A:

Q: .  Calculate the normality of NaOH solution formed by dissolving 0.2 gm NaOH to make 250 ml solution

A:

Q: The concentration unit one part per billion (one ppb) is equivalent to one _____ of solute per _____…

A: In this question, we will see that 1ppb is equivalent to which unit.  ppb and ppm both are…

Q: The maximum safe level of a chemical in drinking water is determined to be 52 μg per kg of water.…

A:

Q: Trace metals and organic contaminants are normally present at sub ppb levels in waters. What is the…

A: ppb is defined as the parts of solute per billion parts of solution given by, => ppb = Mass of…

Q: What mass of cobalt III hydroxide, Co(OH)3 is needed to make 1.2 liters of a 0.21 M cobalt III…

A:

Q: In the water cycle, precipitation goes back to the sea by O cloud formation reverse osmosis…

A:

Q: The ppm concentration of 0.1 M calcium chloride solution is 2611 11.1 11100 5550

A: We have 0.1 M of CaCl2 solution, we have to tell concentration in ppm

Q: What is the equivalent concentration of 1.41 M of Cl- in ppm

A: What is the equivalent concentration of 1.41 M of Cl- in ppm ?

Q: concentration

A:

Q: A 4.55L sample of water contains 0.115 g of Na+ ions. Determine the concentration of Na+ ions in ppm…

A:

Q: ...Any substance that is not a mixture is A pure mixture A colloid A suspension A pure substance

A: We know that mixture is a physical combination of two or more different substances. The…

Q: Which of the following statements is TRUE regarding colligative properties in solution? Select one:…

A: Answer Which of the following statement is true about colligative…

Q: A solution of lead sulfate (PbSO4) contains 0.425 g of lead sulfate in 100.0 g of water.  What is…

A: Given that : Mass of PbSO4 = 0.425 g Mass of water = 100.0g Total mass of the solution = 0.425g +…

Q: 6.67 x 10-3 g of arsenic (As) is found in a 0.600 L sample of water. If the density of this sample…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Express each of these concentrations in parts per million (ppm). 4.6 milligrams per kilogram of…

A: Change the given concentration to ppm?

Q: How many mL of ethyl alcohol are required to make a 2.01% (v/v) aqueous solution in a 300. mL…

A: Volume percent (v/v) % :-  The volume of solute in mL present in 100 mL of solution is defined as…

Q: parts per billion, ppb?

A:

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: A solution of a substance is said to be saturated if it cannot dissolve any more of the substance in…

A: Given, Saturated solution: A solution of a substance is said to be saturated if it cannot dissolve…

Q: Fill in the blanks by writing the name of the definition: __________ __________ contains more…

A: These are type of solution and it's depends on solubility of solute.

Q: What are the similarities and differences between the everyday and technical meanings and uses of…

A: Similarities between the everyday and technical meanings of the terms insoluble and solubility In…

Q: A 600 mL water sample collected from an industrial wastewater plant was found to contain 9.45 ug of…

A: Given that -  Volume of waste water sample = 600 mL = 600 cm3  Mass of solute lead Pb = 9.45 ug…

Q: Give 5 examples of freshwater organisms and their dissolved oxygen requirements.

A: Answer Example 1: Freshwater FluctuationsMean dissolved oxygen concentrations in the Pompton River…

Q: Ethanol is metabolized in most people at a constant rate of about 120mg per hour per kg body weight,…

A: Metabolic Rate is the number of calories required to keep human body functioning at rest.

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

A:

Q: ميز هذا السؤال A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the density of the…

A:

Q: According to this solubility graph, which solid's dissolving process is exothermic?   Group of…

A: From the solubility curves, it is evident that as temperature increases the solubility of sugar…

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…

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.