The ocean is a heterogeneous fluid with different concentrations of zinc at different depths. Suppose that you want to know how much zinc is contained in an imaginary cylinder of ocean water that is 1 m in diameter and 2 000 m deep. How would you construct a representative sample to measure the average concentration of zinc in the cylinder?

Q: 1.00 mL is taken from a stock solution of concentration 8.47 g/L and added to a 10.0 mL volumetric…

A: Given, Stock solution: Concentration of the stock solution (C1) = 8.47 g/L Volume of the stock…

Q: If it is found that 5.00 mL of a sample has a mass of 5.250 g, what is the concentration of the…

A: Amount of substance present in 100ml of solution is defined as the percentage mass by volume. %m/v =…

Q: A laboratory procedure calls for making 400.0 mL of a 1.1 mol L' NANO3 solution. Part A What mass of…

A: Out of multiple methods available to represent the concentration of a particular solution, one…

Q: Assume the density of water is exactly 1 g/mL, what is the mass of solute in 1 L of a solution with…

A: Given, The density of water = 1g/mL The volume of solution = 1L Concentration = 1μg/mL

Q: The safe dosage of the IV antibiotic ceftriaxone for children weighing more than 2.0 kg is 60. mg…

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Q: A 10.00 mL solution of a certain food dye has a concentration of 1.47 g /L. What is the total mass…

A: Given: The concentration of food dye  solution, (C) = 1.47 g/L. The volume of the solution, (V) =…

Q: The safe dosage of the IV antibiotic ceftriaxone for children weighing more than 2.0 kg is 60. mg…

A: The Safe dosage of antibiotics per kilogram of body weight = 60 mg The weight of child is 31 Kg…

Q: The mass of solute per 100 ml of solution is abbreviated as (m/v). Mass is not technically the same…

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Q: What is the mass % of ethylene glycol in a 2.61 M solution of ethylene glycol (MM = 62.07 g/mol) in…

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Q: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

A: • The values provided in the question are:-    i) Initial volume of isopropyl alcohol solution, V1…

Q: A chemist prepares a solution of magnesium fluoride (MGF2) by measuring out 0.026 umol of magnesium…

A: 1micro mole = 10^-6 mole 1L = 1000ml

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: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

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Q: You have a solution which is 45.7% by mass isopropyl alcohol (MM 60.11 g/mol) in water. The density…

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

A: This is a dilution problem. Here the concentration of concentrated KOH solution is given. We have to…

Q: Vinegar is a solution of acetic acid (the solute) in water (the solvent) with a solution density of…

A: Given : Concentration of vinegar = 0.80 M And density of vinegar solution = 1010 g/L Assuming 1 L of…

Q: An 8-fluid ounce [fl oz] glass of milk contains 305 milligrams [mg] of calcium. The molecular weight…

A: Molarity: Molarity can be defined by saying that the number of moles of the solute dissolved per…

Q: A sample of air, with a mass of 5.0 kg, contained carbon monoxide with a concentration of 12 parts…

A: We have given that  A sample of air with a mass of 5.0 kg, contained carbon monoxide with a…

Q: A 10% (w/w) solution has a specific gravity of 1.5 if you have 2000 mL of this solution, what is…

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Q: The density of toluene 1C7H82 is 0.867 g>mL, and the density of thiophene 1C4H4S2 is 1.065…

A: Given: Density of toluene     = 0.867 g/mL Density of thiophene = 1.065 g/mL Mass of thiophene     =…

Q: What is the mass % of ethylene glycol in a 1.85 M solution of ethylene glycol (MM = 62.07 g/mol) in…

A: Given : Molarity of ethylene glycol = 1.85 M And density of solution = 1.07 g/mL

Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

A: The question is based on the concept of solutions. molarity is a method of expressing concentration…

Q: What is the average number of drops equivalent to 1 ml? How do you address a solution that is…

A: Solubility is the property of dissolution of a solute in a solvent to form a solution.  Misicibility…

Q: A solution of 20.91 % by weight H,SO, has a specific gravity of 1.150. What is the normality of this…

A: We have to find normality of solution

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A: The concentration of a solution furnishes information about the amount of the substance present in…

Q: Vinegar is a solution of acetic acid (the solute) in water (the solvent) with a solution density of…

A: Given : Concentration of vinegar = 0.80 M And density of vinegar solution = 1010 g/L Assuming 1 L of…

Q: How many grams of sucrose are needed to make 625 mL of a 32.0% (w/v) sucrose solution?

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Q: You have a 3.27% mass solution that contains 15.89g of sugar. What is the total mass of the…

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

A: It is given that,       Initial concentration of salt dissolved in        Lake…

Q: 7. A 525.0 mL sample of 5.50 M sulfuric acid has a density of 1.49 g/mL. Express the concentration…

A: Mass percentage = 36.20 %

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

Q: Density = (0.9M x 36.46g/mol)/36              = 32.814/36              = 0.9115g/mL My problem is…

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Q: chemist prepares a solution of barium acetate  BaC2H3O22  by measuring out  105.g  of barium…

A: Given that:  Mass of barium acetate = 105.g  Volume of solution = 250.ml = 250 ml×1L/1000ml = 0.250L…

Q: Give an example of a mixture in which solute is solid and solvent is liquid.

A: NaCl (ionic solid) Water (liquid) Salt water

Q: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

A: Given: Initial concentration of alcohol = 4.440 M Initial volume of solution = 316.7 mL And final…

Q: A chemist prepares a solution of sodium thiosulfate (Na,S,0,) by measuring out 111. g of sodium…

A: Answer :- 3.51 mol/L  The concentration of sodium thiosulfate solution = 3.51 mol/L…

Q: A 65.00 mL sample of 0.5 M nitric acid is introduced into a flask, and water is added until the…

A:

Q: A chemistry student weighs out 0.379g of citric acid H3C6H5O7, a triprotic acid, into a 250.mL…

A: Given : mass of H3C6H5O7 = 0.379 g  And concentration of NaOH = 0.2000 M  Since H3C6H5O7 is a…

Q: If you dissolve 27 g of sugar into 155 mL of water, what can youconclude about the mass and volume…

A: Density of a substance is equal to the mass of solution divided by its volume. Write the expression…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Given: The mass of the empty graduated cylinder is 8.25 g. The total mass of the graduated cylinder…

Q: A sample of freshly precipitated and filtered silver chloride weighs 459.0 mg. If 1.00% of the…

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Q: 50.0 kg mixture of salt and water is 15.0% (by mass) salt. Give the mass of the salt and water in…

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Q: One student measured 25 cm3 of a 1.06 g / dm3 sodium carbonate solution. Calculate the mass of…

A: Given Volume of sodium carbonate = 25 cm3  Density of sodium carbonate = 1.06 g/dm3

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A:

Q: Describe any visual differences between the hydrated sample and the dried, anhydrous form. How would…

A: Mass of alum taken = 2.0 g Mass of water released = 1.48 g( the value calculated is correct) Mass of…

Q: Density of an aqueous solution of nitric acid is 1.43 g/mL. If this solutioin contained 36.0% nitric…

A: Given, Density of an aqueous solution of nitric acid = 1.43 g/mL Mass % of nitric acid = 36.0 %…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Given: Mass of cylinder = 5.0 g. Mass of cylinder with thiosulfate = 61.167 g. And the volume of the…

Q: 6. Moles of NaOH dispensed (mol) 7. Molar concentration of acid solution (mol/L) 8. Average molar…

A: The number of moles of a substance is the mass of the substance upon its molar mass. The molarity of…

Q: A chemist prepares a solution of silver perchlorate (AgClO,) by measuring out 1.07 kg of silver…

A: Given, mass of AgClO4 = 1.07 kg = 1.07 × 1000 g = 1070 g Volume of the solution = 250 mL = 0.250 L…

Q: The molecular weight of sucrose is 342 g mol-1. How many grams would you need to weigh out, to…

A: •GIVEN=Molecular weight of sucrose=342 gm/mol •Molarity=0.8 M •Volume=20 ml=0.02 Litre •*Firstly we…