What is the mass of lead in 7.8⋅10^3  g of blood if the lead content is 0.40  ppm?

Q: Albumin is a protein found in blood. If the concentration of this protein is 6.00 x 102 micromole…

A: The concentration albumin protein in blood is =  6.00 x 102 micromole per liter Molecular mass of…

Q: A chemist prepares a solution of copper(II) sulfate CuSO4  by measuring out  64.8g  of copper(II)…

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Q: If 29.0 grams of MgCl2 were dissolved in 0.250 liters of water, what would be the molarity of this…

A: Given Mass of MgCl2 = 29 g Volume of solution = 0.250 L Standard value  Molar mass of MgCl2 = 95.211…

Q: A doctor prescribes a patient to take 25 mL of a medicine every night. If that medicine is listed as…

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Q: What is the concentration in ppm and ppb of a solution that contains 45 mg of lead in 1750 mL of…

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Q: How many grams of Mg(NO3)2 are in 250.0 mL of a 5.00% (m/v) Mg(NO3)2 solution?

A: Solution:   Percentage mass by volume is a measure of concentration. It gives the ratio of the mass…

Q: Calculating molarity using solute mass A chemist prepares a solution of barium acetate (Ba(C,H3O2),)…

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Q: Many remote villages depend solely on wells to supply their drinking water. A ground water analyst…

A: we have to calculate volume of sample of well water

Q: A student prepared a 0.12 M solution of NaOH with a volume of 66 mL. What was the original…

A: Concentration of original solution can be calculated using molarity equation :         M1V1 = M2 V2…

Q: What is the mass of a solution if 25.0 ml of NaOH was added to 35 0 ml of water? Assume a density of…

A: Since the volume of water is not clear, assuming it is 350 mL and the density of solution is 1.00…

Q: John measures out the required 150 mL of 6% H2O2 in a graduated cylinder. What volume of distilled…

A: Given: %(v/v) of H2O2 stock solution = 6 % Volume of final solution required = 300 mL %(v/v) of…

Q: In the standardization of an acid and base solution, sodium hydroxide (99.5% by mass) was used. A…

A: Given: initial burette reading=5.5mL final burette reading=28mL Weight of the sample=0.12g To find:…

Q: One of the ionic compounds in sports drinks is potassium dihydrogen phosphate (KH2PO4). The label on…

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Q: Mrs. A is currently taking Mucogel suspension at a dose of 10 mL after her 3 meals and at bedtime.…

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Q: What is the solvent between 20 mL water, 35 mL alcohol, and 5 grams sugar?

A: If solid and liquid both are present then generally liquid will solvent .and if two liquid present…

Q: 1. A solution of sodium bicarbonate is prepared by adding 45.00 g of sodium bicarbonate to a 1.00-L…

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Q: Calculate the normality of 12.5 g of potassium permanganate (KMnO4) in 475 mL solution

A: The number, n = 5 for KMnO4 as it accepts 5 electrons to become Mn2+

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution. The unit of…

Q: We have an HCl solution with a density of 1.1691 g/mL (34% in weight) which we may use to neutralize…

A: The amount of moles in the solution always remains constant. there is no effect if we change the…

Q: You need to prepare 343 mL of a 5.00 x 10 M CuSO4 solution from a 7 M stock solution. How much…

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Q: solution of hydrochloric acid was formed by dissolving 5.51 g of hydrogen chloride gas in enough…

A: In this question, you will calculate the Concentration of the Solution in weight / volume %  You can…

Q: A chemist makes 640.mL of mercury(II) iodide HgI2 working solution by adding distilled water to…

A: When a solution of Molarity M1  and volume V1 is diluted by adding water to a final volume V2  and…

Q: A geochemist measures the concentration of sait dissolved in Lake Parsons and finds a concentration…

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Q: A chemist makes 710.mL of mercury(I) chloride Hg2Cl2 working solution by adding distilled water to…

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Q: A chemistry student weighs out 0.0763g of lactic acid HC3H5O3 into a 250.mL…

A: The formula of Molarity is as follows, Molarity=Number of MolesVolume (mL)×1000  The equation for…

Q: Which of these will NOT dissolve in water?    a.table salt b.sugar c.vinegar d.bacon fat

A: Given options are : a.table salt b.sugar c.vinegar d.bacon fat Which of these…

Q: 1. A blood serum sample is analyzed and found to contain 102.5 ug Ca2*/mL serum: The density of the…

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Q: .600 M NaCi aqueous SC www 0.997 g / cm3

A: When non volatile solutes are added to a pure solvent ,the solution formed have lower freezing point…

Q: 0.644 g of wood bleach, which contains oxalic acid, H2C2O4, was placed in an Erlenmeyer flask.  The…

A: Balanced chemical equation: 2KOH  +  H2C2O4  ------>   K2C2O4  +   2H2O  Number of of moles of…

Q: What is the volume in mL of a solution if 5.0 grams of Lithium nitride is needed to make 0.350 M…

A: Molarity=Number of moles×1000Volume of solution in mlMolar mass of Li3NNo. of moles=given massmolar…

Q: A chemist makes 800. mL of zinc oxalate (ZnC,04) working solution by adding distilled water to 110.…

A: Dilution of the solution: On dilution of the solution with the pure water, the mole of solute…

Q: A student determined that it took 5.65 mL of NBS to reach an endpoint with a standard solution that…

A: To calculate Concentration of vitamin C in orange juice sample , we can use relation  M1 / V1 = M2 /…

Q: A 0.75 M acetic acid solution has a density of 1.01 g/mL. What is the amount of solvent in grams in…

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Q: 8. The density of methanolc acid, HCOOH Is 1.22 g/mL If 33.5 mL of methanoic acid is dissolved in…

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Q: Hi, A 0.750 gram samples of sodium carbonate required 35.8 mL of a sulfuric acid solution complete…

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Q: In the laboratory you dilute 5.08 mL of a concentrated 6.00 M hydrochloric acid solution to a total…

A: The volume of the concentrated solution, V1=5.08 mL The Concentration of the concentrated solution,…

Q: What is the molarity of a 15mol NaOH solution with a total volume of 123 mL?

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Q: 1.4L of a 2.50 M HNO, solution is added to water so that the final volume is 5.0L Express your…

A: Given: Molarity of HNO3 solution = 2.50 M             Volume of HNO3 solution = 1.4 L       On…

Q: 3. If a researcher starts with 3.00 mL of a 4.50 mg/mL protein solution and adds 10.0 mL of water,…

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Q: please complete the table (volume, dilution factor, concentration of glucose) 2. what is the…

A: 1) Preparation of Standard solutions with different dilution factors      Standard-1:…

Q: A solution 15%(m/m) Na3PO4. What volume of the solution do you need to get 7.5 g of Na3PO4?

A: The mass percent of a solute in a solution = (mass of solute/mass of solution) x 100 The mass of the…

Q: A 7.91 mass % aqueous solution of ethylene glycol (HOCH2CH2OH) has a density of 1.36 g/mL. Calculate…

A: Density is defined as mass per unit volume. Mathematically, it is expressed by equation (1).Molarity…

Q: Isotonic saline solution has a mass % NaCl concentration of 0.900 %. Assuming its density is 1.00…

A: Given, Density of isotonic solution = 1.00 g/ml Mass percent of NaCl = 0.900 % 0.9 % means 0.9 g of…

Q: If 1 L of AgNO3 solution is made by adding 900 mL of water to 100 mL of 2 M AgNO3, what is the…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: The concentration of Tylenol, (CaHNO2), in a patient's plasma is found to be 2.99 x 10 M after the…

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Q: What is the normality of 0.25 F sulfurous acid

A: The chemical formula of Sulfurous acid is H2SO3. Molarity and Normality are ways to measure the…

Q: If 426 mL of 0.204 M HCI solution is needed to neutraize a solution of Ca(OH)2. how many grams of…

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Q: 2. A solution has a concentration of 3.5 grams per liter. What is its concentration in parts per…

A: Parts per thousand (ppm) concentration is the gram of solute present in a liter of solution. Parts…

Q: What is the molarity of a solution where you dissolve 72.0 g of LiF in 600 mL of water?

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Q: One individual was told that his total blood cholesterol concentration should be less than 200.…

A: The concentration of cholestrol are given in two different units; C1 = 200mg/dL C2 = 5.2 x 10-3M It…