How to make 80 micro mol Nacl solution ( mwt NaCL 55.8)? How to make 50 mili molar NaCL solution (mwt NaCL 55.5)? Use 27.75 g/mol of NaCl

Q: A solution contains 4.1 x 10-4 g of Cl-1 per kilogram of solution.  What is this in ppm?

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Q: What volume of a 18% (v/v) hydrochloric acid solution is diluted to produce 350 mL of a 5% (v/v)…

A: Given, initial Concentration befor dilution , C1 = 18%  After dilution, C2 .  = 5%  We need to…

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: An aqueous solution of Potassium sulfate (K2SO4) has a concentration of 38.14% v/v. What mass in kg…

A: Given:  % v/v of K2SO4=38.14%Volume of solution=340 mLDensity of K2SO4=2.66 g/mL To find: Mass of…

Q: Calculate the volume percent of 418 mL of acetone in enough water to give 1.23×103 mL of solution.…

A: Given : Volume of acetone = 418 mL And volume of solution = 1.23 X 103 mL = 1230 mL

Q: A 0.900L sample of sea water is found to contain 6.7 mg Zn. Express concentration in ppm?

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Calculate the mass-volume percent of MgCl2 in the following solution: 4.39 g of MgCl2 is dissolved…

A: Given weight of solute and volume of solution

Q: 20 grams of NaClare dissolved in 0.8 L of water. What volume of this solution would be needed to…

A: 20 grams of NaClare dissolved in 0.8 L of water. What volume of this solution would be needed to…

Q: solution containing 12.0 mmol CaCl2.2H2O is diluted to 1 L. Calculate the number of grams of CaCl2…

A: Given values mmoles of CaCl2 = 12.0mmol = 0.0120 mol Molar mass = 111g/mol Mass of CaCl2 =…

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: How many grams of KF are needed to prepare 175 mL of a 1.80 M solution? 0.315g…

A: Record the given data, The concentration of the solution in Molarity is 1.80 M The given volume is…

Q: How much distilled water must be added to a 25.00 mL 0.5104 M aqueous H2SO4 solution to prepare a…

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Q: Calculate the molar concentration of a solution containing 18 g of NaOH in 100 mL water.

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

Q: Determine the volume percent of a solution made by adding 46.3 mL of bleach in enough water to make…

A: Given :-  Volume of bleach = 46.3 mL  Volume of solution = 175.9 mL  To calculate :-  Volume percent…

Q: A 50 ml solution of 1.2 M NaCl is diluted to 100 mL. What is the new concentration?

A: When a single type of solution initially has a fix concentration and then we mix some amount of…

Q: How much sugar (C12H22O11) in grams must be added to 450 mL water to make a 20% sugar solution?

A: Density of water = 1 g/mL Mass of water = volume x density                             = 450 x 1=…

Q: Dilution A. How many mL of concentrated nitric acid, HNO3, that is 12M do you need to make 500 mL…

A: Given -> M1= 12 M M2= 1.5M V2=500ml

Q: This question is about solubility of liquids in liquids. Please help me answer it In two separate…

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Q: A student is asked to make up 100.0 g of a 26 % (w/w) sucrose solution. The students weighted out 26…

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Q: how many mL of a 0.555 M KNO3 (Mw=101.1g/mol) solution would contain 30.5 g of KNO3?

A: Given  Molarity of KNO3                  = 0.555 M Molecular weight of KNO3 = 101.1 gm/mole Mass of…

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: How much Ethylene Glycol (C2H602) in grams is dissolved to create 251 mL of a 3.50 M solution?

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Q: how you would make 500 mL of a 3.5% (v/v) ethanol solution (m.w. = 46.1 g/mol).

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Q: 1.95x101 mglucose solution made by dissolving the glucose in 100.0 kg of water: mol 2.20x102…

A: Molality of solution is the ratio of number of moles of solute to the amount of solvent (in kg)…

Q: Calculate the volume in milliliters of a 0.38M sodium carbonate solution that contains 75.0mmol of…

A: ANSWER :

Q: A pharamacist prepares a solution by adding 3.00 mg of sodlum lons to 114 g of water. How many ppm…

A: PPM is a unit that is used to measure the concentration of the solutions. For very dilute solutions…

Q: For a 25.0% solution of CaCl2, calculate the: a). mass of CaCl2 in 460.0 grams of soution b). amount…

A: Mass percent of a solution is determined as mass % =mass of solutemass of solution×100% Thus using…

Q: Part1: 1.05×10-1  m glucose solution made by dissolving the glucose in 100.0 kg of water: ____ mol…

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Q: How much volume of 1.6 M NaOH solution can be made by diluting 74 ml of 4 M NaOH.

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Q: How to prepare 250 ml of 98% H2So4 solution with a density of 1.98 g / ml? (H2So4: 98 g / mol

A: Volume of solution is 250 mL Density of solution is 1.98 g/mL Thus we calcuate mass of solution from…

Q: What mass of MCl is needed to make 3000g of 30% solution? (MW: H= 1 , Cl= 35)

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Q: Rubbing alcohol is commonly used as an antiseptic for small cuts. It is sold as a 70% solution of…

A: Solution is made up of two components. Solute and solvent. Component which is present in major…

Q: Given a stock solution of 25% glucose (MW = 180.16 gm); how much is needed to make 500 mL of 15%…

A: Answer: Mass and moles are always the extensive property, therefore they can be added or subtracted,…

Q: many mL should you take from a 70% solution to dilute it to a 21% solution ? a. 20 mL b. 30 mL C. 50…

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Q: 4 grams of  Na2CO3 (MW = 105.99 g/mol) was dissolved to make 300 mL solution. It was found to have a…

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Q: the concentration of sugar in water is determined to be 0.45 g/mL and 100. g of sugar was used to…

A: Concentration is the amount of solute present per ml of solution.  It's unit is g/ml.

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

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Q: How would a technician make 50 mL of a 2% w/v NaCl solution?

A: We have to make 2% w/v NaCl solution.  Volume of solution should be 50 mL.  To make this solution we…

Q: A solution contains 11 ppb of toluene. This means that ___. 1 g of solution contains 11 ×…

A: Ppb is the concentration measurement and is named as parts per billion. It measures the…

Q: A 900.0 g sample of sea water is found to contain 6.7 x 10 -3 g Zn.  Express this concentration in…

A: The concentration has to be given in ppm, Formula used: ppm=mass of solute/mass of solution×106

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: A 37.5 mg sample of NaCl is dissolved in 21.0 kg of H2O.  What is the solution concentration in ppm?

A: Firstly we have to find mass of solution.But here we observe that mass of solvent is very large as…

Q: Compare the percentages of water for each trial?  Are they close to one another?  Why/why not?…

A: Given: percentages of water for each trial: trial 1 = 28.6% trial 2 = 29.8% trial 3 = 24.8% trial 4…

Q: 250.0 mL of a solution that contains 10.0 ppm Ca2+ is needed.  CaCO3 is provided as the source of…

A: Concept: To calculate the mass of  CaCO3 required to prepare the desired solution, first of all, we…

Q: A certain solution is 2.5% (w/v) NaCl (salt) in water. Calculate the number of grams of sodium…

A:

Q: The allowable concentration of arsenic in drinking water is 0.05 mg of arsenic per liter of water.…

A: The formula to find concentration of solution = Weight of solute in grams/weight of solution in…

Q: tô make a larger volume of the solution. Example: An IV saline solution is based on 0.9% NaCl =…

A: Concentration: Concentration in chemistry refers to quantity of solute (moles of solute) present in…

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: Given a 100 mL solution of 0.050 M BaCl2●2H2O solution, which of the following statements is…

A: Answer: First of all we will calculate the number of moles of BaCl2.2H2O and then with help of this…