A student measures the conductivity of three different aqueous solutions of KNO3 using a conductivity probe. The SI units for conductivity is siemens/meters (S/m).

Q: The preparation of homeopathic "remedies" involves repeated dilution of solutions containing active…

A: The mass of arsenic trioxide is 18.0 g. The moles of arsenic trioxide is calculated as,…

Q: A50 ml. sample of a 48 0 % (m/v) acetic acid (HC,H3O2) solution is added to water to give a final…

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Q: Express 1:444 (w/v) as a percent concentration (round to three decimal places) and as a…

A: We need to convert given w/v concentration to percent concentration and parts per million.

Q: ind the molarity of a 40.0% by mass aqueous solution of sulfuric acid, H2SO4, for which the density…

A: The molarity is the concentration term which is defined as the number of moles of solute present in…

Q: The density of an aqueous solution containing 40.0% sulfuric acid (H2SO4) by mole is 1.681 g/mL. c)…

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Q: Calculate the molarity of a solution containing 1.2 moles of NaCi in 730 ml of solution?

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is…

Q: What are the normality and molarity of a solution prepared by dissolving 8.050g Ba(0H)2 · 8H,0 in…

A: Molarity (M):-  The number of moles of solute dissolved in one litre of solution is known as…

Q: e molarity of a 9.00% by mass ammonium chloride aqueous solution at 20 celsius? Density of the…

A: Molarity is defined as number of moles of solute dissolved per liter of solution. It is the…

Q: How much water ( in mL) must be added to a 4.01 M sulfuric acid solution to obtain 193.1 mL of 2.00…

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Q: If I make a solution by adding water to 35 mL of methanol (CH,OH) until the final volume of the…

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Q: calculate the concentration of dye in the resulting mixture in units of mg of dye / L of solution.

A: Given :-  initial concentration of food dye solution = 45.1 mg of dye / L of solution  initial…

Q: A typical commercial grade aqueous phosphoric acid is 75% H3PO4 by mass and has a solution density…

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Q: Solution BII. Calculate the volume of ~0.00100 M KMnO4 (Solution BI) needed to prepare 25.00 mL of ~…

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Q: what masses of solute and solvent are present?

A: Number of moles = Molarity × Volume(L)  Molar mass of LiCl = 42.394 g/mol  Solution = solute +…

Q: If 11.5 mL of stock hydrofluoric acid are diluted to 500.0 mL, what is the molar concentration of…

A: A stock solution is a concentrated solution prepared and stored in laboratories, that can be later…

Q: How many grams of KIO3 is required to prepare 250 mL, 0.01 M KIO3(aq) solution?

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: In a demonstration of strong electrolytes, weak electrolytes, and nonelectrolytes, Professor…

A: When bulbs are came in contact with electrolytic solution , the bulbs gets light up due to the…

Q: What mass of sodium chloride. NaCI, should be dissolved in enough water to make up 300 cm3 of 1.00 M…

A: Given, 300 cm3 of 1.00 M NaCI(aq)

Q: A 12.5 mL portion of a base solution of an element from Group 2A is diluted to 500 mL, and the…

A: Initial volume of base solution (of elements group 2A ) = 12.5 ml  New Volume of base solution = 500…

Q: An aqueous solution is 16.0% by mass potassium bromide, KBr, and has a density of 1.12 g/mL. The…

A: Molarity  can be calculated as follows

Q: The quotient of 12.987g divided by 20.0cm^3

A: Given,12.987 g divided by 20.0 cm3

Q: At 25 °C, the density of a 80.0 % (m/m) solution of sucrose, C12H22011, in water is 1.41 g/mL. What…

A: Molarity of a solution can be determined by dividing the number of moles of solutewith the volume of…

Q: The total concentration of dissolve particles in blood is 0.30 M. An intravenous (IV) solution must…

A: Given: Molarity of blood is 0.30 mol/L Molarity of IV glucose is 0.30 mol/L Volume of IV glucose…

Q: 1. What are the normality and molarity of a solution prepared by dissolving 8.050g Ba(0H)2· 8H20 in…

A: Molar mass of Ba(OH)2 . 8H2O = 315 g/mol  Volume = 1500 ml = 1.5 L

Q: What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cm…

A: Given: Volume of solution = 45.0 mL = 45 cm3 density of HCl solution = 1.19 g.cm-3  HCl percent by…

Q: The fish canning industry has a waste effluent with the specification as follows: BOD5 = 150 mg/L,…

A: High levels of BOD and COD can be treated with the help of ozone. Ozone is an oxidant and is soluble…

Q: 2. The concentration of NH4CI solution (aqueous solution) is 33.5% by mass. If the mass of solution…

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Q: A chemist needs 13.81 mL of 1.458 M NaCl. What volume in mL of 3.767 M NaCl must be diluted in water…

A: Moles before dilution and after dilution ae same as per mole concept.

Q: Calculate the normality of 0.321 g sodium carbonate when it is mixed in a 250 mL solution

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Q: What mass of salt (NaCI) in grams (g) is required to prepare 2.552 L ofD51/¼NS solution? Give your…

A: Given that : The volume of D514NS solution = 2.552 L We have to calculate the mass of NaCl required…

Q: .600 M NaCi aqueous SC www 0.997 g / cm3

A: When non volatile solutes are added to a pure solvent ,the solution formed have lower freezing point…

Q: 69.0 mL of 2.0 M Sr(OH)2 are mixed with 31.0 mL of 1.8 N Sr(OH)2 . What is the normality of the…

A: Given Sample 1 : Molarity of Sr(OH)2 = 2.0 M , volume = 69 ml Sample 2 : Normality of Sr(OH)2 = 1.8…

Q: 1) 1 eq HCI ? 2) 1 eq HBr Br CI Br CI Br CI Br CI Br Br CI I II III IV V %3I

A: Given reaction is :    Predict the major product of the reaction = ? Options are :

Q: C:04 +6H* → 2MN²*+ 10CO2(g) +8H2O r concentration of the KMNO4 solution.

A: Given Molarity of Na2C2O4 = 0.02502  Volume of Na2C2O4 = 50.00 mL Volume of KMnO4 = 34.75 mL

Q: The protocol for a given lab experiment specifies that you should prepare a diluted solution by…

A: Dilution is a important part for carrying out a lab experiment. In a lab experiment various types of…

Q: For the chemical reaction…

A: Ionic reaction means ions are participating in reaction.  Given reaction  is in molecular form…

Q: You have some bottles of chemicals whose labels have fallen off: HC,H,0, (aq), AICI, (aq), and…

A: HCN, hydrocyanic acid comes under weak electrolyte categoryNaCl is strong electrolyteEthanol, C2H5OH…

Q: *9. ssm The preparation of homeopathic “remedies" involves the repeated dilution of solutions…

A: mass As2O3 = 18.0 g moles As2O3 = (mass As2O3) / (molar mass As2O3) moles As2O3 = (18.0 g) / (197.84…

Q: How many grams of dextrose are needed to make 675 mL675 mL of a 26.0% (w/v)26.0% (w/v) dextrose…

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Q: How many grams of dextrose are needed to make 615 mL of a 33.0 % (w/v) dextrose solution? Note that…

A: Given that : Volume of solution = 615 mL of 33.0% (w/v)  Mass of dextrose = ?

Q: A student uses a pipette to dilute 1.00 mL of a standard iron solution to 50.0 mL. If the µg what…

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Q: A:If 100 mL of a 0.15 M Mg(NO3)2(aq) solution has a density of 1.09 g/mL, which of the following…

A: Part A: From the given molarity value and volume of Mg(NO3)2 the moles of Mg(NO3)2  can be…

Q: If 1.5 g of potassium dichromate (K2Cr2O7) is used to prepare a standard solution in a 250 mL…

A: Solution:    Molarity is the measure of the concentration of species.The amount of solute present…

Q: An aqueous solution is 10.0 % by mass hydrochloric acid, HCl, and has a density of 1.05 g/mL. The…

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Q: if i add water to 112 grams of Na2SO4 to make 250.00 ml of solution, what is the molarity of this…

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Q: An aqueous solution of 2.54 M silver nitrate, AgNO3, has a density of 1.35 g/mL.The percent by mass…

A: The percent by mass of AgNO3 in the solution is calculated in step two.

Q: What is the molarity of sodium chloride in solution that is 13.0 % by mass sodium chloride and that…

A: Given, density of NaCl = 1.01 g/mL Mass % = 13.0 % Molar mass of NaCl = 58.44 g/mol Molarity of NaCl…

Q: A chemist adds 195.0 mL of a 0.0685 mM barium acetate (Ba(C,H;02),) : solution to a reaction flask.…

A: