How many grams of KCL (MW = 74.5) are needed to prepare 250ml of a solution containing 37.5 mOsmol KCL

Q: 11. Calculate the normality of a potassium dichromate solution prepared by placing 9.67 grams of…

A: In this question, we will determine the normality of K2Cr2O7 from the given mass of potassium…

Q: OA 12.0 % (w/w) aqueous solution of acetone has a density of 0.984 9 g/mL at room temperature. Pure…

A: Given data weight % of Acetone in solution = 12.0 % density of solution : ρsolution=0.9849 g/mL…

Q: Find the Molarity and Normality of NaCI (Mwt=58.5 gm/mol) if you Know the percentage (w/w) of KCI is…

A: Normality = n factor × Molarity If n factor is one then Molarity and normality will be same.

Q: A 10.34 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL,…

A: Given,  10.34 molal aqueous nitric acid solution, It means 10.34 moles of HNO3 is present in 1.0 kg…

Q: To what final volume should you dilute 50.0 mL of a5.00 M KI solution so that 25.0 mL of the diluted…

A: Molarity can be calculated by dividing number of moles by volume of the solution and number of moles…

Q: A 5.17 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL, density…

A: Molality = Number of moles of solute/Mass of solvent in Kg Concentration (%v/v) = 100 x Volume of…

Q: A 10.34 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL,…

A: Given ,  10.34 molal aqueous nitric acid solution , It means 10.34 moles of HNO3 is present in 1.0…

Q: Calculate the normality of H2SO4    ( MW = 98. 08 g/mol) which is prepared by adding 184.1 g of…

A: Given  Mass of H2SO4   = 184.1 gram  Volume of solution = 1000 mL                                 =…

Q: Prepare 250 ml of 2.5% w/v NaCl

A: Solutions are prepared in various concentration. One of such concentration is weight by volume…

Q: Solute: MgCl2 Composition of Solution: moarity 4.0 at 20 degrees C Density, g/mL: 20 degrees:…

A: Given: Concentration of the solution at 20°C is 4 M. Density at 20°C is 1.269 g/mL. Density at 80°C…

Q: What is the molar concentration of a 27% acetone (CH3COCH3) solution?

A: Given: (w/v)% of acetone = 27%

Q: . What is the molar concentration of a 500 mL solution containing 0.3 mol of glucose (MW=180 g/mol)?…

A: The solution is provided below:

Q: How many mL of0.75% (w/v) KCl (potassium chloride) solution can be made from 10 g of KCl?

A:

Q: • Determine the volume (ml) required to dilute a solution containing 48.480g of K2SO4 in order to…

A: Normality is no. of equivalent of solute dissolved per litre of the solution.  Normality is equal to…

Q: How do you prepare a 500mL solution of 3.0M H3PO4 from a concentrated solution that has a specific…

A: Dilution :-  If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of…

Q: A 1.00 % by mass solution of lactose (C12H22011, 342.30 g/mol) in water has a density of 1.0602 g/mL…

A: Given, density of Solution = 1.0602 g/mL Mass % lactose = 1.00 %  Molar mass of lactose = 342.30…

Q: What is the molality of a solution prepared by dissolving 32.6 g of sucrose (C12H22O11) in 1.56 L of…

A: Given, mass of sucrose =32.6 gramvolume of water =1.56 Ldensity of water =1.00 gmLwe are asked to…

Q: You have a solution that is 18.5%% (v/v) methyl alcohol. If the bottle contains 2.16 LL of solution,…

A: Volume concentration of a solution is expressed as % v/v, which stands for volume per volume. This…

Q: molarity of the solution. (MW of SO2 = 64g/mol)

A:

Q: How to prepare 40 ml of 25 ppm potassium solution from 0.01 M KNO3 solution? KNOS . g/mol, dn =…

A: Given that: Concentration of KNO3 = 0.01M Molar mass of KNO3 = 101.10grams Atomic mass of Potassium…

Q: If 102.6 mL of water is shaken with oxygen gas at 1.8 atm, it will dissolve 0.0034 g O2. Estimate…

A: Henry law: This law states that the concentration of a gas dissolved in a liquid depends on the…

Q: How many liters of stock 5% w/v H2O2 (MW 34) are needed to make 300 mL of 450 mM solution?

A: Given data:

Q: If 90g of CaBr2 is dissolved in C2H3O2 to make 9L of the solution, what is its normality? MW- Ca:…

A:

Q: An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW =…

A: Consider the volume as 50.0 mL. The mass of ethylene glycol is calculated as, Mass=50.0 mL1.114…

Q: A solution is prepared at 25oC by mixing 20 g of K2SO4 with 150 cc of water. The density of water at…

A: The mass of K2SO4 = 20 g. The molecular weight of K2SO4 = 174.25 g/mol. The mass of the solvent…

Q: The concentration of a 1500mL aqueous KCl solution was increased from 25.0 M to 80.0 M by…

A: Given: Before evaporation: Concentration of KCl solution = 25.0 M = 25.0 mol/L Volume of the…

Q: 9.11. What is the normality of a soln. of F12SO, if it has a specific gravity of 1.84 and contains…

A: a) Since the n-factor of H2SO4 = 2 because it has 2 acidic H Hence the normality of H2SO4 = n-factor…

Q: Calculate the molarity of a 91.9 wt% solution of H2SO4 with a solution density of 1.61g/ml.

A: The number of moles of sulfuric acid present in the given weight percent is calculated as

Q: Calculate the w/v percentage of 4.39g of sucrose in 293 mL of water?

A:

Q: To what total solution volume, in mL, would you have to dilute 1.88 milligrams of mercury(I)…

A: Answer : If the solute in solution is very small then for the measurement of the  of concentration…

Q: Calculate the Normality of a solution of 0.25 gm/L H3PO4? *

A: Solution- 1 mol of the H3PO4 is the 3 moles  of the H- ionsin H3PO4 Number of the H+ that produces…

Q: What is the Normality of a sulfuric acid solution containing 75% w/v of H2SO4 (98.0) and having a…

A: Normality: In 1000 mL or 1L of the solution, the gram equivalent of the solute present is called the…

Q: How many grams of sucrose (C12H22O11) are in 1.60L of a 0.829 M sucrose solution? Express the mass…

A: Molarity : It is the number of moles of Solute dissolved per litre of theSolution . It is…

Q: A 10.34 molal aqueous nitric acid solution was prepared.  (Density of nitric acid = 1.51 g/mL,…

A: Given, Density of nitric acid = 1.51 g/mL Density of water = 1.0 g/mL The molar mass of nitric acid…

Q: For the next 5 items, consider a solution which is prepared by dissolving 5.00 grams of a…

A: Mass of solute = 5g  Mass of solvent = 250.0g  Molar mass of solute = 50g/mol Mass of solvent =…

Q: Q1: The density of 78.5 g of methanol (Mwt. 32) is 0.89 g/ml. What is the Molality of the solution?

A: Density(D) is mathematically defined as the ratio of mass of methanol and the volume of the…

Q: What is the molar concentration of a نقطتان ( 2 solution that is 4 percent K2SO4 by weight and has…

A: 4 percent by weight means 4 g K2SO4 in 100 g solution. Volume of 100 g solution = mass / density…

Q: An aqueous solution of HNO3 was prepared having a molality concentration of 6.29. (Atomic…

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

Q: An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW =…

A: Hi, since you have posted multiple subparts. We will answer the first three subparts. Kindly repost…

Q: An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW =…

A: Volume percent:  As there are equal volumes of two solutions. The volume percent would be 50% for…

Q: Express the concentration of a solution (%w/w, %v/v and %w/v) containing 5g of NaCl and 50 ml of…

A:

Q: What is the molality of a solution prepared by dissolving 31.2 g of sucrose (C12H22O11) in 1.58 L of…

A: molality =molar weight of sucroseweight of solvent in kg               = weight of sucrose in…

Q: 3. Determine the mass of glucose, CcH12O6 (s), needed to produce a 0.150 m glucose solution in 50.0…

A: Given: The molality of the glucose, C6H12O6 solution, (m)=0.15 m. The molar mass of glucose,…

Q: Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH…

A: Molality of a solution is equal to the number of moles of solute dissolved in one kilogram of…

Q: What is the molality of a solution prepared by dissolving 40.0 grams of glucose (C6 H12 O6) in 4.00…

A:

Q: Calculate the: %m/v, %v/v, %m/m and M of a solution that contains 28.0 grams of KNO3 in 300.0 mL of…

A: Given :-  mass of KNO3 = 28.0 g  volume of water = 300.0 mL  density of KNO3 = 2.11 g/mL  density of…

Q: what is the Normal concentration of a solution that is 4 percent KHSO4 by weight and has specific…

A: The normality of the compound is the number of equivalents divided by the equivalent weight of the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.