Calculate the number of mL of a 500ppm solution needed to prepare 100mL of a 50 ppm solution.

Q: How much a drug such as Benzodiazepine would you need to weigh in order to make a 3mM and 25mM of…

A: Given,  Volume (V) = 10 mL     Since, 1 mL = 10-3L        So,.    V = (10×10-3) L                  V…

Q: You prepare  45mL of a 0.15M Potassium Chloride solution. What would be the expected mass of 4mL…

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Q: How many mL of 2.50% (m/v) salt solution would contain 1.80 g of salt?

A: →m/v% =2.50%       Mass of solute =1.80g       Volume of solutionv=?        m/v% =Mass of…

Q: What is the Normality of 250ml of 2.417M AL(OH), diluted to 500ml? 14.50N 3.63N 1.21N 4.83N

A: Given,  Volume of Al(OH)3 in mL = 250 mL  Molarity of Al(OH)3 = 2.417 M  Al(OH)3 diluted to volume =…

Q: A sample of a potential pharmaceutical is being tested for effectiveness at different dosages. 250.…

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Q: Determine the type of solution when 900 grams of NaNO3 is placed in 750 ml at 50 °C. (T/I)

A: According to the solubility chart, Solubility of NaNO3 at 50 °C = 1160 g/L

Q: What volume (in mL) of concentrated hydrochloric acid is necessary to prepare 6 mL of 50% (v/v)…

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Q: What would be the percent by volume and proof of an ethanol solution containing 70 mL alcohol in 250…

A: Given data,  Volume of ethanol = 70 mL  Volume of ethanol solution = 250 mL  Here,  Solute of the…

Q: To what total solution volume, in mL, would you have to dilute 1.84 milligrams of mercury(I)…

A: Since ppm (m/v) is defined as  ppm (m/v) = mass of solute in g X 106 / volume of solution in mL…

Q: Question attached

A: Molarity                Number of moles / litre Given: Number of moles = 0.200 mole Volume of the…

Q: how would you make 500ml of a .090M solution of CaCl2 from pure soild CaCl2

A: Since all the term used in the molarity are known, excluding mass of solute (CaCl2). hence, we can…

Q: You take 5.0 mL of a 1.50M solution of sucrose and dilute it to 250.0mL. What is the mass of sucrose…

A: Molarity, M1=1.50 M Volume, V1=5 mL On dilution, V2=250 mL M1×V1=M2×V2

Q: A 1:25 dilution is done with a 10.0 ppb solution. What is the concentration of the diluted solution…

A: Given that, 1:25 dilution of 10.0 ppb solution. Concentration of diluted solution?

Q: 10. How to prepare 40 ml of 25 ppm potassium solution from 0.01 M KNO3 solution? KNO3 : 100 g/mol,…

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

A: Normality of solution is defined as number of gram equivalents of solute dissolved per litre of…

Q: Calculate the mass (in grams) of vanillin required to prepare 100 mL of a 100 ppm vanillin stock…

A: Given: Volume of solution is 100 mL. Concentration of solution is 100 ppm. Introduction: Parts per…

Q: How to prepare 40 ml of 25 ppm potassium solution from 0.01 M KNO3 solution? KNOS . g/mol, dn =…

A: Given that: Concentration of KNO3 = 0.01M Molar mass of KNO3 = 101.10grams Atomic mass of Potassium…

Q: 2. Calculate the molarity of a solution containing 5 g of NaOH in 450mL solution?

A: Molarity:. It is defined as the number of moles of solute present in the given solution in ml.

Q: W.H.2;How much Cl ions are contained in 5 L solution 28 ppm? K

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Q: A 2.1 M K2SO4 solution can be prepared by diluting mL of 9.2 M K₂2SO4 solution to 241 mL

A: • The values provided in the question are:-         i) Initial concentration of K2SO4 solution, M1…

Q: Calculate The MASS-VOLUME PERCENT of 5g of MgCl2 to make 250mL of aqueous solution.

A: We know that ; Mass - volume percent = (Mass of Solute/volume of solution)× 100% By using this…

Q: If there is 0.551 mg of arsenic in 348 g of solution, what is the arsenic concentration in ppm?

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Q: Using the data below, determine the solution that has the lowest density. Data of Various Solutions…

A: The relation between mass density and volume is as follows: Density = mass/ Volume     ......... (1)…

Q: Calculate the millimoles of solute in 2.03 L of a 0.00420 M NaCN solution. millimoles: mmol NaCN…

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Q: How much NaOH (in g) will be needed to form a 1000L 100 ppm solution? a. 10 b. 100 c. 1000 d. 10000

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Q: How many milliliters of a 2.00% KCl solution are needed to provide a patient with 5.00g of KCl?

A: Concentration of has been defined in many units like molarity, molality, ppm, m/v %, V/V %.…

Q: 129.4 mg of NaCl (MM=58.44 g) is dissolved in 108.43 L of water. What is the concentration of Na+…

A: We have 129.4 mg of NaCl (MM=58.44 g) is dissolved in 108.43 L of water.  We've to calculate the…

Q: 125 ml solution contains 15.6 % (v/v) of benzene. What volume of benzene is in the solution? 1.…

A: The volume of the solution is = 125 mL The concentration of the solution is = 15.6 % (v/v) The…

Q: You have available a stock solution of 1.500M CuSO4. You need to prepare 500.0mL of 0.3000M CuSO4…

A: The solution is given below -

Q: To what total solution volume, in mL, would you have to dilute 1.88 milligrams of mercury(I)…

A: Answer : If the solute in solution is very small then for the measurement of the  of concentration…

Q: Module 2b: How much NaOH (in g) will * be needed to form a 1000L 100 ppm solution? 10 O 100 O 1000…

A: Given, Note: 1 ppm = 1 mg/L Concentration of the solution = 100 ppm = 100 mg/L Volume of the…

Q: describe how you would prepare 750 mL of a 0.65 M MgCl2 solution

A: Molarity = number of moles/volume of solution (in L)   Number of moles = mass/molar mass  So,  mass…

Q: How many grams of manganese acetate tetrahydrate, Mn(C2H4O2)2 x 4H2O, do you need to prepare 2…

A: Given information: Concentration of solution in ppm = 1000 ppm Volume of solution = 2 L

Q: What is the volume percent, % (v/v) of an alcohol solution made by dissolving 103 mL of isopropyl…

A: we know that  % (V/V) = volume of alcohol x 100 / volume of solution  now volume of solution =…

Q: A solution is 21.4% (v/v) Br2 and has a density of 1.18 g/mL. What mass of this solution is needed…

A: Given,  Density of solution = 1.18 g/mL  21% (v/v) is Br2 in the solution .  Total amount of  Br2 in…

Q: How do I calculate the mass (g) of solid needed to prepare 250.00mL of 550. ppm stock solution?…

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Q: you are given 15ug/ml atrazine to prepare a 3 ppb solution  a. use te terms working and stock to…

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Q: How can you prepare 250 ml, 0.1N HNO3 solution from 35% HNO3      and 1.26 g/cm3  density?

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Q: Define the following: 1. solvent 2. mixture 3. solution

A: (1) Solvent -  Solution is formed by combination of atleast two Substances, one of them has higher…

Q: Calculate the ppm of a solution containing 635 mg of Calcium nitrate dissolved in 5.50 mL of water.

A: We know that, ppm = mass of solute (mg)/volume in litre

Q: If a 1000ml liquor beer is 36% alcohol by volume, how many ml of the solution are ethanol? Find the…

A: Given, Volume of the solution (liquor Beer) = 1000 ml 36% alcohol by volume  Formula Used,…

Q: Calculate the amount in grams of CaCl2 needed to make 250 mL of a 20 mM CaCl2 solution.

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Q: Calculate the mass of KI in grams required to prepare 5.00 × 102 mL of a 2.80 M solution.

A: *   Concentration = No. of molesVolume of solution (L)* Number of moles = weightMolar massMolar mass…

Q: 20 cm3 4.0 M potassium-chloride solution is diluted to five-fold volume with distilled water. How…

A: Given: The volume of the solution to be diluted= 20 cm3. The concentration of KCl stock solution=…

Q: Isopropyl alcohol is mixed with water to produce a 33.0% (v/v) alcohol solution. How many…

A: The total volume % of the alcohol solution = 100% The volume % of isopropyl alcohol present in the…

Q: An 12% strength bleach solution is created, when 4L of water is evaporated away from a 8% bleach…

A: Initial strength of bleach = 8%  Final strength of bleach is 12% after evaporated 4 L of water from…

Q: What volume (in mL) of concentrated hydrochloric acid is necessary to prepare 10 mL of 1:1 (v/v)…

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Q: To prepare 100 ml of 0.40 M NaCl solution from a 1.0 M solution you should mix: a) 40 ml of 1.0 M…

A: To prepare 100 ml of 0.40 M NaCl solution from a 1.0 M stock solution, the volume of stock solution…

Q: If we measure 27.5mL of 2.50 molar Na2Cr2O7 solution, how many grams of sodium are present?

A: GivenMolarity of Na2Cr2O7 = 2.5 M ( mol/L )Volume of solution = 27.5 ml = 27.5 x 10-3 LMolar mass…