Calculation: If the concentration of K+ in seawater is 10.6 mM, what is this in ppm? (The density of seawater is 1.035 kg/L)) 4000 ppm 40 ppm O 4x103 ppm 400 ppm

Q: Solute S has a distribution constant of 6.1 between water (phase 1) and hexane (phase 2). Calculate…

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Q: The principal active ingredient in antacids is 0.00200M Al(OH)3 (76.98 g/mol). If all hydroxide ions…

A: Concentration in terms of normality  is .

Q: How much solid sodium chloride do you need to make 300.0 mL of a 150. mM NaCl solution in water?

A:

Q: Can you please help me with this problem?

A: Calculate the number of moles of HCl.

Q: You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare…

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Q: What volume of a 0.716 M KBr solution is needed to provide 30.5 grams of KBr? O 822 mL O 42.7 mL O…

A: According to our policy we should solve one question ( If any subpart present then first three…

Q: An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca2+ +  2NO3- ). Find the…

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Q: Calculate the volume of 1 M CoCl2 needed to prepare 100 mL of 0.25 M CoCl2

A: Molarity of solution 2 (M2) = 0.25 Volume of solution 2 (V2) = 100 ml Molarity of solution 1 (M1)= 1…

Q: Calculate the molarity of a solution of 42.64 g of aluminum nitrate, Al(NO3)3, in 1260 mL of…

A: Molarity =no. of moles of soluteVolume of the solution in litre  no. of moles =given massMolar mass

Q: Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of…

A: consider 1 L         =   1000 mL of solution. Mass of solvent    =  density ×volume…

Q: A 500 mL sample of waste water contains 42.65 µg of mercury, Hg. If the density of the sample is…

A: We are given a sample of waste water that contains mercury. We have to find its concentration in…

Q: A solution of hydrogen peroxide (H2O2) in water with a volume of 50.0 mL is diluted by adding 70.0…

A: Initial Volume = 50 mL Final Volume = 50 + 70 = 120 mL

Q: You need to treat cells with arsenite such that it has a final concentration of 25 uM once it has…

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Q: To what volume should you dilute 150.0 ml of an aqueous 4.00 M potassium phosphate solution so that…

A: The process of dilution is defined as the process in which a solution with a lower concentration is…

Q: 8. Calculate the concentration in g/100 mL of sugar for each of the solutions prepared. 9. Use the…

A: The v/v (volume/volume) concentration of each solution can be calculated by the following equation:…

Q: How many milliliters of a 0.223 M Rb NO 3 solution contain 0.250 moles of Rb NO 3 ? 1.12 × 103 mL…

A: Data: Molarity of RbNO3 solution = 0.223 M Moles of RbNO3 = 0.250 moles   To find volume of solution…

Q: What is the concentration, in ppm, if 0.9081 grams of Calcium chloride is dissolved in 250.0 ml of…

A: 1 ppm (parts per million) is the 1 part weight of solute in 1 million parts volume of solution. ppm…

Q: If 0.96 mL of a 0.128 M HCl solution is diluted with water to a total volume of 10.00 mL, what is…

A: By the law of equivalent, M1V1=M2V2 so,

Q: Choose the substance that is classified correctly? O NaF is a basic salt in aqueous solution O FeBr3…

A: NaF is mixture of strong base and weak acid so resulting nature of salt is basic. In FeBr3 HBr is…

Q: The concentration of O2 in seawater is 1.6 x 10-4 M at 25.0 °C. What is this concentration in ppm?…

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Q: What volume of 0.300 M Iron(III) nitrate is needed to make 75 mL of 0.00300 M Iron(III) nitrate?…

A: We have an initial concentration of 0.300M We need 75ml of 0.00300M Iron(III)nitrate

Q: A solution contains 15 gram of NaOH in a total volume of 190 ml. Express the concentration in terms…

A: Mass of NaOH        = 15 g Volume of solution =  190 mL                                = 0.19 L

Q: A 15 meter by 12 meter pool of water has a depth of 3.0 meters. What mass of silver ion is present…

A: Parts per million (PPM) is unit of measurement used in expressing very dilute concentration level of…

Q: Believe it or not, there is gold dissolved in the Earth’s ocean! The concentration can run as high…

A: We have to calculate mass of gold.

Q: What is the level of heavy metal (in ppm) in a 3.89 kg sample that has 0.9 mg of the heavy metal…

A: PPM stands for parts per million.  It is used when solute concentration is very very low.

Q: A student determined that it took 5.65 mL of NBS to reach an endpoint with a standard solution that…

A: Solution - According to the question - Given - 5.65 mL NBS is used to reach end point concentration…

Q: What is the concentration in ppm if 0.808 grams of CaCl2 is dissolved in 250 ml of water.  A. 11220…

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Q: Calculate the volume of 0.169 M HNO₃ required to neutralize 25.0 mL of 0.250 M NaOH.

A: Given :-  Molarity of HNO3 solution = 0.169 M  Molarity of NaOH solution = 0.250 M  Volume of NaOH…

Q: Part B A student placed 18.5 g of glucose (C6 H12 O6) in a volumetric flask, added enough water to…

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Q: e concentration of Br in a sample of seawater is 9.3 · 104 M. If a liter of awater has a mass of 1.0…

A: Molatity of Br-  solution = 9.3 × 10-4 M  Mass of seawater taken = 1.0 kg  Volume given = 1.0 L

Q: What volume of 0.10 M NAOH is required to neutralize 45.0 ml of 0.8M hydroiodic acid, HI? A. 36 mL…

A: given:  Molarity of NaOH=0.10M Molarity of HI=0.8M Volume of HI=45ml   To find: The Volume of NaOH

Q: A solution has a volume of (500) ml if the solution contains 1023×3.022 partial sodium carbonate.…

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Q: 114.7 mg of NaCl (MM=58.44 g) is dissolved in 246.42 L of water. What is the concentration of Na+…

A: A numerical problem based on concept of solutions, which is to be accomplished.

Q: Students in a chemistry lab need 500.0 mL of 1M hydrocholric acid for their experiment. They have…

A: We have to predict the volume of acid needed.

Q: An alcoholic drink claims 12% alcohol by volume. Calculate the volume in mL of alcohol present in a…

A: 12% alcohol means 12mL alcohol in 100mL of solution (wine, here). And, 1L=1000mL Therefore,…

Q: What volume, in milliliters, of 2.00 M calcium chloride stock solution would you use to make .50 L…

A: By using dilution law, M1V1 =M2V2 Given that,  M1=2.00M, V1=?? M2=0.300M , V2=0.50L=500 mL thus,

Q: 6.67 x 10-3 g of arsenic (As) is found in a 0.600 L sample of water. If the density of this sample…

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Q: What volume, in millileters, of 4.0 M NaOH is needed to prepare 145mL of .45 M NaOH?   16mL…

A: We can use equation of dilution for solving this problem. That is, M1V1 = M2V2

Q: A 2.15 L volume of KOH of an unknown concentration is mixed with 2050 mL of 0.445 M NaOH. The…

A: If same nature of two solutions are mixed with different concentrations and volumes then the…

Q: 1) What is the concentration in ppm of a solution made with 18.5 g of salt and 125000.00 g of water?…

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Q: . You have a concentrated stock solution of bacterial LPS in water that has a concentration of 1…

A: Since the dilution factor is inversely proportional to the concentration of the solution.

Q: Each row of the table below describes an aqueous solution at about 25°C . Complete the table. That…

A: • The values provided in the question are:-    i) Hydronium ion concentration of solution A, [H3O+]…

Q: Calculate the amount of ferrous ammonium sulfate [Fe(NH­4)2(SO4)2•6H2O](MM = 392.14 g/mol) needed to…

A: Amount of ferrous ammonium sulfate can be calculated from the concentration and volume of solution.

Q: How many mL of 0.625 M KBr are needed to prepare 2. O 200. mL O 0.0200 mL O 313 mL O 31.3 mL

A: The molarity is determined as the moles of solute upon volume of solution in liters. The molarity of…

Q: A calibration curve of NaCl conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

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Q: alculate the mass of sodium citrate dihydrate, Na3C6H5O7(H2O)2, needed to prepare 50 mL of a 0.015 M…

A: 1. To calculate the mass of sodium citrate dihydrate, Na3C6H5O7(H2O)2, needed to prepare 50 mL of a…

Q: What is the concentration of a diluted solution of magnesium chlorite? The concentrated stock had a…

A: Initial concentration (stock solution), M1 = 1.40 M The initial volume, V1 =50.0 mL= 0.050 L Final…

Q: a) An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca2+ +  2NO3- ). Find…

A: Given that concentration of Ca(NO3)2 = 12.6 ppm Let volume of the solution = 1L = 1000 mL we know…

Q: A cough syrup, which comes in a concentrated syrup, contains red dye #40. The red dye #40 syrup is…

A: The molarity of original syrup is 4.68×10-3 M. The concentration of original solution is diluted by…

Q: You have a 400 mL solution that has a Na+ concentration of 0.20 M. How many mL of sample would you…

A: M1 V1 = M2 V2