If we need 80mL of 0.3M NaCI, it is harder to calculate. For any dilution we can use the formula C,V1 = C2V2. Using this formula, how many mL of 5M NaCl do you need to make the specificed solution?
Q: How would you safely prepare 500. ml of 1.00 M H2SO4 solution from a 12.4 M H2SO4 stock solution?
A: Given that, molarity of stock solution, M1 = 12.4 M volume of H2SO4, V2 = 500. ml molarity of…
Q: Please help
A: Ionic compounds are soluble in polar solvents as “Like dissolves like.” Therefore polar solvents…
Q: What mass of NaCI is needed to make 250ml of solution with a concentration of 2.0M? 15g 29g 18g…
A: Molarity (M) can be defined as the number of moles of solute per litre of solution. The unit for…
Q: 8) The volume percentage V/V% is equal to preparing by mixing 30 mL ethyl alcohol with 350 ml water.…
A: Volume percentage ( V/V )% :- The volume of solute present in 100 mL of solution is called volume…
Q: How much compound is required to make 2.5 molar solution in 250 ml solvent? (Molecular weight is…
A: concentration of solution = 2.5 M ...Or because M(Molarity) can be written as mol/L ....So, =…
Q: 100 mL of 0.5 M H2SO4 solution is needed. The stock solution is 6 M. How many milliliters of stock…
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Q: how many ml of 0.100 m naoh is needed to dilute to a given 2.00litre of 0.0500 m naoh A 100ml B 50ml…
A: • The values provided in the q uestion are:- i) Initial concentration of NaOH solution, M1 =…
Q: Calculate the concentration of a solution made from diluting 70.0 mL of 1.05 M HCl to 430. mL.
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Q: 150 140 130 120 110 100 NANO, 90 80 70 60 NH&C -ка Naci 50 40 30 20 KCIÓ 10 Cez(so O 10 20 30 40 50…
A: Solubility of a solute in a solution is defined as the amount (gram) of solute dissolved in 100 gram…
Q: You want to make 75 mL of a 0.15M sodium chloride (NaCl) solution How many grams of NaCl are needed?…
A: Given : Volume of solution = 75 ml Concentration of NaCl solution = 0.15 M
Q: An effective germicide used in laboratories is a 70.0% v/v ethanol solution. This (v/v) means the…
A: We have to use unitary method for this.
Q: you have just used up the last of a 1.2% m/m solution of agarose water. You require another 100mls.…
A: For preparing of agarose gel , we use Following formula - Mass of agarose in gram = percentage ×…
Q: Calculate the molarity of a solution prepared by diluting 35.59 mL of 0.725 M potassium chloride to…
A: The molarity of the solution prepared after dilution can be calculated using,…
Q: Calculate how many moles are there in 15.0 cm3 of a solution made by dissolving 5.80 g of zinc…
A: Given,
Q: You are given an 18% solution of sodium imidazole. What mass of imidazole (in g) would be in 20 mL…
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Q: How many aams (of mass m) of glucose are in 195 mL of a 5.50% (m/v) glucose solutior
A: Let 100 % be treated as 100 gram in 100 mL of water. Therefore, 5.50 % solution contains 5.50 gm…
Q: A 1000-mL solution with ethanol as solvent has 45.0% m/v KOH. How many grams of KOH are there in the…
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Q: If I leave 750 mL of 0.50 M sodium chloride solution uncovered on a windowsill and 150 mL of the…
A: Since only the solvent in evaporating. Hence the solute NaCl amount will remain same in the initial…
Q: Mass of unknown metal carbonate = 0.9789g Molarity of HCl solution = 0.1782M Molarity of NaOH…
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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…
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A: The volume of the solution can be determined by the relationship between the concentration and…
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Q: If a gold mining oompany wanted to dilute 100 L of 0.131 mol/L cyanide solution to a more usable…
A: We can determine the dilution problem from the following formula : V1 ×S1 = V2 ×S2 where V1 =…
Q: Calculate the %w/v of a solution made by dissolving 22.0 g CH3OH (methanol) in C2H5OH (ethanol) to…
A: %w/v: It is the parameter that is used to calculate the concentration of the solute present in 100…
Q: Example 8: Calculate the weight percentage of solution prepare by mixing 5.0g AGNO3 with 100 mL…
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Q: How many grams of disodium EDTA (mw=336g/mol) is required to prepare 200 ml of 0.02150 M of Aluminum…
A: Given: Mol. weight of EDTA = 336 g/mol Volume of Aluminum oxide = 200 mL Mol. weight of Aluminum…
Q: given a stock solution of 2.0%,how would you prepare 10mL of the following solution? find mL stock…
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Q: 500 mL of pure water is first added to 500 mL of 0.500 M K2Cr2O7, making a “standard” solution. What…
A: Given that, 500 mL of 0.500 M of K2Cr2O7, making a "standard" solution, i.e. V1 = 500 mL and S1 =…
Q: How many grams of ammonium sulfite is needed to make 250.0 mL 0.500 M solution from solid? How…
A: We know , Molarity = moles / per L of Solution By using this relation we can calculate the moles of…
Q: Based from the Molarity of the palmitic acid solution that you were able to solve from the previous…
A: Given, Molarity of palmitic acid(to be prepared), M1=0.53 M Volume of palmitic acid (to be…
Q: How many grams per millilitre of NaCl arecontained in a 0.250 M solution.
A: Molarity: It is the parameter that expresses the amount of a solute that is present in one liter of…
Q: How many mL water must be added to produce a. 625 mL of 1.00M solution from 6.00M solution? b.…
A: a)Given: M1= 6.0M M2= 1.00M V1 = ? V2= 625mL for dilution M1V1=M2V2 V1 = M2V2/M1 = 1.00 x 625/6.0 =…
Q: If a 250 mL solution of ethanol in water is prepared with 4 mL of absolute ethanol, what will be…
A: %v/v = = Volume of solute×100/Volume of solution %v/v = 4 ×100/250 = 1.60 %
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Q: The normal recipe for preparing Kool-Aid® calls for adding the entire package and 1 cup of sugar to…
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Q: If you had only 23 g of KOH remaining in a bottle, how many milliliters of 10.0% 1m/v2 solution…
A: Introduction: Molarity: Molarity is commonly used in chemistry to express the concentration of…
Q: Given a stock solution of 0.100 M CuSO4, describe how you would make a 10 mL standard 25 mM stock…
A: Let V1 be the initial volume of CuSO4 V2 be the final volume of stock solution. M1 be…
Q: Please describe how do you prepare one liter of solution containing 8.00 mM Cu2+
A: The required solution is as follows:
Q: 5) How is 4mL of 50mM NaCl solution be prepared from a 2M NaCl stock? Do not forget to include a…
A:
Q: Approximately, how many grams of phosphoric acid (MW=98 g/mol) are in 175 ml of a 3.5 M phosphoric…
A: • Thus, approximately, 60 grams of phosphoric acid, H3PO4 are in 175 ml of a 3.5 M phosphoric…
Q: The density of a concentrated phosphoric acid solution is 1.514 g/mL solution at 20°C. It contains…
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Q: part 1How many ml of a 14M solution must be used to make 250ml of 1.75M? part 2 Water is added to…
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Q: A 6.00ml portion of an 8.00M stock solution is to be diluted to 0.400M. What will be the final…
A: Given : Initial concentration = 8.00 M Initial volume = 6.00 mL Final concentration = 0.400 M To…
Q: Calculate the final concentration of each of the following. A 53.5 mL sample of an 8.8 % (m/v) KBr…
A: The final concentration of the 8.8 % (m/v) KBr solution is to be calculated.
Q: ou are provided with a) 500 mL of 10 M KMnO4 solution b) 100 grams of pure NaCl c) 100 mL of 12 M…
A: Solution - According to the question - Given - 1. Prepare the ferrous sulphate solution in a beaker…
Q: What volume in mL of 0.300 M NaF would be required to make a 0.0605 M solution of NaF when diluted…
A: Molarity is a concentration term. It is expressed as the number of moles of solute dissolved in per…
Q: Calculate the solubility of PbCrO4 in water at 25 °C. Round your answer to 2 significant digits.
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Q: A stock solution of 5.00M C6H12O6 (sugar water) is available. How many milliliters are needed to…
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Q: Calculate the amount in grams of solid K2CrO4 to make 100ml of a0.2 M aqueous solution of K2CrO4.…
A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…
Q: How would you prepare 100 mL of 0.3 molar solution CaCl2
A: Given, molarity of solution (M) = 0.3 M Volume of solution (V) = 100 mL = 100 x10-3 L = 0.1 L Mass…
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- A spot of crude plant extract was placed on a glass plate coated with C18 silica gel. The chromatogram was developed using an appropriate solvent. The result is shown below. Which of the following spot is the most soluble in water?Which of the following methods of preparing 0.0010M HCl solution from 1.0M stock HCl Solution willyield the smaller overlall uncertainty? a. A one step Dilution that uses 1mL(±0.006) pipet and 1000mL(±0.30) Volumetric Flask, or b. A two-step dilution that uses 20mL (±0.03) pipet and a 1000mL(±0.30) volumetric flask and a25 mL (±0.03) pipet and a 500mL(±0.20) volumetric flask for second dilution.The partial molar volumes of acetone and chloroform, in a solution in which the molar fraction of chloroform is 0.4693, are 74.166 cm3mol-1 and 80.235 cm3 mol-1, respectively. What is the volume of 1,000 kg of this solution? Data: M.M. (acetone) = 58.08 gmol-1; M.M. (chloroform) = 119.07 gmol-1.
- Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute. If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 13.3 mL of ether. to two significant figures.Percentage or Ratio Strength Concentration.Show your complete solution. 1. If 250 mL of 15% (v/v) solution of methyl salicylate in alcohol is diluted to 1500 mL, what will be the percentage strength (v/v) of the final solution? *Note: Indicate the unit. Give your answer in 2 decimal places. Example 100.00 %Indicate the appropriate protocol below to prepare the required solution. a) Solution 5 Preparation: Prepare: 10 mL of 23% mannitol From: solid mannitol Procedure: b) Solution 2 Preparation: Prepare: 0.5 liters of 0.01 mg/mL ascorbic acid From: solid ascorbic acid , MW = 176.1 g/mol Procedure: C) Solution 3 Preparation: Prepare: 1 liter of 150 mM Tris From: 1 Molar Tris stock solution Procedure:
- 10g coffee 4g sodium carbonate 40m dichloromethane 160ml distilled water coffee filter What are the principles behind caffeine being extracted from coffee using the above items? 1st sodium carbonate mixed with coffee then brought to a boil for 20min then solution/grinds are filtered. Then solution is added to a separatory funnel with 15ml of dichloromethane and two layers are observed so the bottom layer with DCM contains the caffeine, then this layer is collected in a beaker and dried out using molecular seeds. Then the solvent is brought to a boil with crude caffeine remaining and recystallized using 95% ethanol and brought to a boil again. Then the contents are vaccum filtered and allowed to dry resulting in 30mg caffeine.A prescription was received for: 150ml Peppermint Water 2.5ml to be taken before feeds. The formula for peppermint water is given as: Concentrated peppermint emulsion 5ml Chloroform water, double strength 100ml(0.5% v/v) Purified water to 200ml If you only have concentrated chloroform water(10%) available in the pharmacy, how many ml would require for the above preparation? And what is the concentration of chloroform in the final mixture?Solution Calculations Using unit analysis, clearly show the set-ups for your calculations. You wish to prepare 50.0 mL of 2.30 x 10–2 M solution of (Levothyroxine) C15H11I4NO4 drug. (hint-how many grams will you need of this drug?) Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that this drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. Thank you!!
- 1. Which of the following is the best option for transferring 20 mL of a solution? a.Use a 5mL serological pipette 4 times b. Use a 10 mL Mohr pipette twice c. Use a 20 mL Mohr pipette once d. Use a 10 mL volumetric pipette twice 2. Which glassware is NOT used in preparing a solution from a solid sample? a. Funnelb. Beakerc. Volumetric pipetteErwin Smith wants to determine the average concentration of amino acids present in the spinal fluid of Eldians. He assigned four people to complete this task. Who among these four people will be able to obtain the best results? a.Levi Ackerman, who obtained samples from 100 Eldians from Wall Maria b.Mikasa Ackerman, who obtained samples from 100 Eldians from Wall Rose c.Hange Zoe, who obtained samples from 50 Eldians inside Wall Sina and 50 Eldians from Wall Rose d.Armin Arlert, who obtained samples from 34 Eldians from Wall Maria, 33 Eldians from Wall Rose, and 33 Eldians from Wall SinaA phlebotomist was acting as an instructor for a phlebotomy student from the local college and was anxious to help her learn all the special tests that had not been practiced in class. When a stat blood culture and electrolytes were ordered on a patient in the ICU, the instructor quickly grabbed the student and they headed for the floor. It was clear after looking at the patient that they would have to use a butterfly in a hand vein to collect the test specimen. The instructor was busy helping the student prepare the site and did not pay attention to the order the student layout all of the equipment/tubes/bottles for the draw. The student elated that she was able to access the difficult vein and that blood was flowing freely to the anaerobic bottles. After filling both it and the aerobic bottle to the proper level, she proceeded to draw a sst tube for the electrolytes. The blood flow was now very slow, with blood entering the tube one drop at a time. After patiently waiting for the…