To aid in the prevention of tooth decay, it is recommended that drinking water contain 0900 ppm fluoride, F". How many grams of F must be added to a cylindrical water reservoir having a diameter of 5.29 x 10 m and a depth of 65.43 m? mass: gF How many grams of sodium fluoride, NaF, contain this amount of fluoride? mass & NaF

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…

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A: Given, Note: 1 µmol = 10-6 mol moles of potassium permanganate (KMnO4) = 2.5 µmol = 2.5 × 10-6 mol…

Q: The use of freons is being phased out because of the damage these compounds do to the stratospheric…

A: a.

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F- per 70 kg of body weight can cause…

A: The strength of the given solution of fluoride ion is 1 mg/L. In order to cause toxicity and death,…

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F-per 70 kg of body weight can cause…

A: Given data contains, Concentration is 1 mg/L. Toxic amount is 0.2 g

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A: Given, the mass of optical fiber = 1.19 x 103 lb/m            Length of each strands optical fiber…

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A: To calculate the amount of bleach , we would first calculate the volume of whole sink . Also it is…

Q: A chemist tries to dissolve a solid ionic compound called "X" in water at 25°C. He adds 100 mL of…

A: Solution is a homogenous mixture of solute and solvent. Solute is the component present in lesser…

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A:

Q: What mass (in g) of HCl is contained in 45.4 mL of an aqueous HCl solution that has a density of…

A: Volume of an aqueous HCl solution = 45.4 mL  Given that density of 1.084 g·cm−3 at 60°C that means…

Q: Wanting to make your own ice cream at home, you purchase milk, ice, and salt (MW = 58.44 g/mol). You…

A: A question based on properties of liquids that is to be accomplished.

Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

A: Since, E10 is a mixture of 10% ethanol and 90% gasoline.

Q: 2. The Anemovax COVID-19 vaccine uses 0.950% (w/v) NaCl (normal saline, preservative- free) as its…

A:

Q: 18/8 stainless steel is made up of 18% (m/m) chromium and 8% (m/m) nickel in iron. What mass of iron…

A: Mass percentage of chromium = 18 % Mass percentage of Nickel= 8% Mass percentage of iron = 100 - (18…

Q: How many grams of ethanol are there in a liter-volume of wine (D = 0.934 g/mL) that is 12.0% by mass…

A: Given: Density of wine = 0.934 g/mL. Volume of wine = 1 L = 1000 mL

Q: An ice freezer behind a restaurant has a freon leak, releasing 30.77 g of C,H,F,Cl into the air…

A:

Q: WhalefossilsfoundintheSaharaDesertprovetheregionwasoncecoveredin water. Remnants of that water,…

A: Given: Mass of fossil water = 1.65 × 1014 tons. Density of water = 1.00 g/mL.

Q: You will need grams of sodium chloride and mL of water.

A: Given :- mass of solution = 184 g                % w/w = 3.17 %  To be calculated :- mass of NaCl (…

Q: A chemist prepares a solution of copper(II) fluoride (CuF2) by measuring out 1.4 mg of copper(II)…

A: Step 1Given information:Mass of copper(II) fluoride = 1.4 mgVolume = 300 mL

Q: d) A stock solution of potassium hydroxide, KOH, is 1 mol dm³. X cm³ aliquot of this solution is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 1 gallon bottle of a certain brand of bleach costs $2.19. Determine the cost to buy enough bleach…

A: unit coversions.

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A: A numerical problem based on dimensional analysis, which is to be accomplished.

Q: A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium…

A: Ammonium hydroxide is NH4OH. It will dissociate as : NH4OH(aq.)↔ NH4+ (aq.) +  OH- (aq.) Here,…

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: A bottling plant has 163,250 bottles with a capacity of 355 mL, 123,000 caps, and 33,350 L of…

A: Given : Number of bottles = 163,250  Capacity of each bottle = 355 mL = 0.355 L…

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3COO),. . You will need grams of magnesium acetate and…

A:

Q: Is the mixture described in the table homogeneous or heterogeneous? Explain how you can tell.

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Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given,2.0g pill contains 7.5% of the active ingredient by mass.Then,25 pills contains = ?

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Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

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Q: You wish to prepare 222 grams of 21.2 % Ca(CH3CO0)2. You will need grams of calcium acetate and mL…

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Q: 2.) Five standardized dilutions of aqueous lead(II) chromate solution were prepared by adding a…

A: The concentration of the [CrO42-] in 100 mL deionised water can be detrmined by using the formula.…

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Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F⁻ per 70 kg of body weight can cause…

A: Water fluoridation is the controlled adjustment of fluoride to a public water supply to reduce tooth…

Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 8.2 g of potassium…

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Q: 750 g Oral 237 mL per bottle Potassium 950 g elemental iodine + 1.5 kgs potassium hydroxide…

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Q: essential oils from a plant, 7.5 mL of benzene (C6H6, 78.11 g/mol) was mixed with 25.00 mL of hexane…

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Q: Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 295 mL of…

A:

Q: You wish to prepare 200 grams of 12.9 % NH,CH3COO. You will need grams of ammonium acetate and mL of…

A: In order to determine the concentration of any chemical species various terms can be used.…

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A: Solution : It is the homogeneous mixture of two or more species together, it generally consists of…

Q: 3. Tequila often contains about 40 % alcohol by volume (80 proof) giving it a density of 0.812 g/mL.…

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Q: A patient needs an infusion with 7 mmol of monobasic potassium phosphate and 7 mml of dibasic…

A: Formula used: moles = massMolar mass   Unit conversion: 1 mmol = 1 x 10-3 mol 1 mg = 1 x 10-3 g

Q: t is recommended that drinking water contain 1.6ppm fluoride (F-) for the prevention of tooth decay.…

A: Given: The diameter of the reservoir, (D) = 4.5×102 m The radius of the reservoir, (r) = 2.25×102 m…

Q: A 5.00g sample of sand and salt is 75.0%w/w salt. How many grams of salt and sand are in the…

A: Mass percentage can be defined as the parts of a substance (A) per hundred parts of the total by…

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

A: Given: Concentration of salt dissolved in Lake Parsons = 28.44 g/L Average concentration of salt in…

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Q: To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.700 ppm…

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Q: A chemist adds 450.0 mL of a 1.0 mol/L barium acetate (Ba (C,H,0,),) solution to a reaction flask.…

A: Volume of solution = 450.0 ml  ...Or  because 1L = 1000 ml    ....so, 450.0 ml × (1L / 1000 ml ) =…