How could you have made 10 μL of the 50 ng/μL of DNA solution directly from the 500 ng/μLstock?

Q: al, how would you prepare 25 ml

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Q: How many grams of Al2(C204)3 are needed to make 35.2 mL of a 14.3 %(m/v) solution?

A: Mass by volume percent is defined as mass of solute divided by volume of solution multiplied by 100.…

Q: How many mL of propyl alcohol are required to make a 2.28% (v/v) aqueous solution in a 100. mL…

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Q: You have been assigned to prepare 50.0 mL of a (1.0 %(v/v) solution in a volumetric flask from a…

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Q: If a compound has a log Kow value of 6.5, what would be its predicted concentration (in ppm) in the…

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Q: how would you prepare 9 liters of a 50% dye solution beginning with a 60% stock dye solution?

A: Given :-  Initial concentration or concentration of stock solution = 60%  Final concentration or…

Q: How do you make a 10x stock solution for 10mM NaH2PO4 (monobasics). Show what should be the volume…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: What is the concentration in mEq/L of a Mg^2+ solution that is mmoleL?

A: When the concentration of an ion in solution is given in mMole/L, it can be converted into mEq/L…

Q: Which solvent would dissolve each solute better: C2H5OH (ethanol, E) or gasoline (C8H18, G)?  1)…

A: In chemistry, for solubility the prime rule is 'like dissolves like' This means, that a polar…

Q: Ratio of peppermint water to make 60ml? What is the stepwise procedure for preparation of…

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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: Which state of matter is NaNO3 in? O Solid O Liquid O Gas O Plasma

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

Q: Prepare a solution of 50 ml at 5% m / v of NaHCO3.

A: Given  The (m/v) percentage of NaHCO3 = 5% The volume of NaHCO3 solution required = 50 mL

Q: 150 140 KI 130 120 110 100 NANO3 90 80 70 60 50 NH&CI KCI NaCi 40 30 20 10 KCIO3. Ce2(SO4)3 0 10 20…

A: Answer: At a given temperature when a solution contains the amount of solute equals to its…

Q: I purified my protein in the presence of 8 M urea. I have 25 mL of protein, and I need to reduce the…

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Q: Prepare 100 ml of 1.0 M ammonia solution by diluting 25% ammonia solution (ρ = 0.910). How much…

A: Given: Density of stock solution = 0.910 g/mL. Volume of solution to be prepared = 100 mL.…

Q: How many mL of acetone are required to make a 3.87% (v/v) aqueous solution in a 200. mL volumetric…

A: The volume of solute (in mL) present in 100 mL of the solution is known as the v/v percent…

Q: How to make 250g of solution of 5% KCl from solid KCl

A: The solution concentration in terms of percentage of mass.  The formula and calculation given below

Q: How would you prepare 75 mL of an H2SO4 solution at 20% in weight (density=1.1394 g/mL,…

A: Volume of the solution = 75 mL density of the solution = 1.1394 g/mLgiven percentage of the solution…

Q: Calculate the millimoles in 0.75ml of n-methylaniline. Density 0.99g/ml

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Q: 1. How many liters are required to make 0.2M solution if 54g Na₂SO4 is used? Na = 23g; S = 32g;…

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Q: Post-lab Question #6: What mass (g) of NaCI is dissolved in 200 g of water in a 0.100 m solution?…

A: Given data: *The mass of water is 200 g.  *Molality is 0.100 m.

Q: Using the available salt (NaCl, KBr and KI) prepare 100 mL stock solutions containing 4000 mg/L of…

A: Given concentration of halide in stock solution=4000 mg/L= 4 g/LVolume of stock solution to be…

Q: How would you make 550 mL of 1:30 boric acid solution from 75% stock

A: The question is based on the concepts of solutions. we need to prepare the desired solution from the…

Q: Using M1V1=M2V2 Make 100ml of a solution that contains 0.5mM MgCl2, 15 mM CaCl2 and 120 mM KCl 0.5M…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: Lambanog contains methanol (CH3OH; density of 0.792 g/mL), in which at high dosage, is lethal. If an…

A: The minimum lethal dose of methanol in lambanog is =  0.300 g/kg of body weight The body weight is =…

Q: Question attached

A: C1V1=C2V2 is molarity equation where C1 is the molarity of the solution having volume V1 AND C2 is…

Q: Using the available salt (NaCl, KBr and KI) prepare 100 mL stock solutions containing 4000 mg/L of…

A: 4000 mg/L of each HALIDE  4 gm halide ions in 1 litre solution  as they asked to prepare 100ml stock…

Q: (16-20). A solution that is isotonic with blood cells was prepared by dissolving 0.860 g of NaCl (MM…

A: Given: Mass of solute (NaCl) , m=0.860 g Molar mass of NaCl, M =58 g/mol Volume of solution, V =99.5…

Q: 14. An injection of adalimumab (HUMIRA) contains 40 mg/0.8 mL. Calculate the percentage…

A: Given, An injection of adalimumab contains 40 mg/0.8 mL  Percentage concentration of the injection =…

Q: How many mL of methyl alcohol are required to make a 8.79% (v/v) aqueous solution in a 300.mL…

A: Percent Volume/Volume  Means the X mL of the Solute present in the 100 mL of the Solution . For…

Q: What volume of the 1.0 x 10-4 M CV stock solution is needed to achieve 50.0 ml of the 5.0 x 10-6 M…

A: The objective of this question is to find out the volume of the stock solution needed to prepare a…

Q: A 1.132 g sample of KHP (HKC8H404) required 28.05 mL of NaOH solution to reach endpoint. Calculate…

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Q: Find the final concentration of ethanol as a percent (v/v) when 30 mL of ethanol 50 % (v/v), 60 mL…

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Q: How do you prepare 1 liter of a 150 mM tris? From 1 Molar Tris Stock solution.

A: Given: Concentration of tris = 150 mM = 150 x 10-3 M = 0.150 M = 0.150 mol L-1 Volume of solution =…

Q: bottle contains 72 mL of vanilla extract solution.  If the solution contains 59 mL of alcohol, what…

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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: Why did you measure 60 ml and not 59.04 ml to make up this final solution?

A: Rules for significant figures: All non-zero digits are significant Captive zeroes are significant…

Q: What is the m/v% of 2000mL of 6M HCl solution?

A: m/v% = (mass of solute/ volume of solution) × 100

Q: What volume of 30% H202 do you have to  dilute to make 20 mL to make a 3% H20 solution ?

A: Given , Concentration of stock solution of H2O2 = 30 % ( I am taking 3% H20 solution as 3% H2O2…

Q: How much mass (in mg) of a protein (MW = 125 kDa) is in a 300 μL of a 200 μM solution? Show…

A: According to the question we have, The molecular weight of the protein is = 125 kDa The volume of…

Q: A topical antibiotic is 1.0 % (m/v) clindamycin. What does this statement imply?   Question 2…

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Q: How will you prepare standard solution of catechin (50, 100, 150, 200, 250 and 300 mg/L) scaled down…

A: We need to prepare 50 mL of catechin standard solutions of varying concentrations.

Q: To make 500 ml 0.075M KCL hypotonic solution from  0.75 M KCl  stock solution, how many ml 0.75M KCl…

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Q: Calculate the percent composition of each element in C10H8 (molar mass = 128.171 amu) %3D O %C =…

A: Since you have posted two question, we will solve first one for you. To get the remaining question…