A 998 mL NaCl solution is diluted to a volume of 1.14 L and a concentration of 3.00 mol L^−1. What was the initial concentration? Express the molar concentration numerically.

Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0…

A: We have to predict the concentration in mmol/L.

Q: A potassium iodide solution is made by mixing 6.299 grams of potassium iodide and mixing it into 307…

A: We know that, Molarity = Number of moles/Volume (L) Number of moles = Given mass / Molar mass Molar…

Q: You dilute 35.00 mL of 1.12 M K2SO4 to a volume of 250.00 mL of pure water. What is the…

A: The objective of the question is to determine the concentration of  in the diluted solution.

Q: What mass of calcium chloride dihydrate, CaCl2•2H2O is required to prepare 100.0 mL of a 0.224 M…

A:

Q: How many milliliters of 12.0 M HCI(aq) are needed to prepare 595.0 mL of 1.00 M HCI(aq)?

A: Given: The initial concentration of HCl, (M1) = 12 M. The final concentration of HCl, (M2) = 1.0 M.…

Q: A 50.0 mL portion of a  0.360 M  sucrose solution was diluted to    5.00  ×  102  mL. What is the…

A: Given that, Initial concentration of sucrose    M1=0.360M  Initial volume of sucrose V1=50.0mL…

Q: Exactly 6.21 g of MgCl2 (molar mass = 95.2 g/mol) was dissolved in water.  An analysis indicated…

A:

Q: 164.00 mL of 0.200 M Cu(NO3)2(aq) is mixed with 93.000 mL of 0.400 M NaOH(aq). Assuming 100% yield,…

A: The chemical reaction is: Cu(NO3)2 (aq) + 2NaOH (aq) →Cu(OH)2 (s) + 2NaNO3 (aq)

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 671 mg of chloride…

A: Given : Mass of chloride ion = 671 mg = 0.671 g…

Q: In the laboratory you dissolve 23.4 g of chromium(II) acetate in a volumetric flask and add water to…

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

Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: In the laboratory you dilute 4.25 mL of a concentrated 12.0 M hydrochloric acid solution to a total…

A: Answer: Dilution of a solution is done by gradually adding water in the stock solution. Addition of…

Q: Convert 5.300 gL-1 magnesium hydroxide to (a) normality and (b) molarity. MM=58.33 g/m

A:

Q: Calculate the volume in mL of the iron(III) bromide stock solution that the chemist should pour out.

A:

Q: In the laboratory you dilute 2.81 mL of a concentrated 12.0 M hydrochloric acid solution to a total…

A: The objective of this question is to find the concentration of the diluted hydrochloric acid…

Q: .A student takes 20 mL of 3M HNO3 solution and dilutes it to 250 mL i a volumetric flask. What is…

A: Molarity = number of moles / Litre

Q: In a household ammonia, there is 4.25 g of NH3 in 500 mL of solution. Express the said concentration…

A:

Q: A 15.0% (by mass) solution of iron(III) sulfate has a density of 1.19 g/cm3 . Calculate the molarity…

A:

Q: A 7.92 mL sample of MgCl2 aqueous solution was diluted to a volume of 27.3 mL. If the chloride ion…

A: Given,volume of original MgCl2 aqueous solution = 7.92 mLVolume of MgCl2 solution after dilution =…

Q: Suppose 38.6 g of iron(II) iodide is dissolved in 350. mL of a 0.50 M aqueous solution of silver…

A:

Q: A 2.06 M NaNO3 solution has a volume of 9.16 L. It is diluted to a volume of 29.484 L. What is the…

A: Volume can be determined using the dilution expression,

Q: Suppose 0.785 g of barium acetate is dissolved in 150. mL of a 36.0 m M aqueous solution of ammonium…

A: Given mass of barium acetate = 0.785 g volume = 150 ml = 0.150 L

Q: In the laboratory, a student dilutes 26.7 mL of a 7.32 M hydrochloric acid solution to a total…

A: Initial Molarity, M1 = 7.32 M Initial volume, V1 = 26.7 mL Final Molarity, M2 = unknown Final…

Q: the molarity of this solution

A: Given data, Weight of Oxalic acid = 0.0620 g Molar mass H2C2O4.2H2O = 126.07 g/mol Volume of…

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0 g…

A: To determine the molarity (M) of a solution, you can use the formula:M In this case, you're given…

Q: A chemist has a solution made from 1.923 kg of ammonium phosphate dissolved in 2.1 L of water. They…

A:

Q: In the laboratory you dilute 5.53 mL of a concentrated 12.0 M perchloric acid solution to a total…

A: The molarity of a solution is given by:

Q: A 11.00 mL solution of Na2HPO4 is combined with a 23.00 mL solution of 21.00 mM NaH2PO4. The Na +…

A: The objective is to determine the concentration of Na2HPO4 in the original solution. Given…

Q: In the laboratory you dilute 4.36 mL of a concentrated 6.00 M nitric acid solution to a total volume…

A:

Q: Distilled water was added to 10.00 mL of 12.0 M HCl stock solution in a 2000. mL flask. What is the…

A: Given: Volume of HCl stock solution = 10.00 mL Molarity of HCl stock solution = 12.0 M Volume of…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 567 mg of chloride…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: eus to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C12H22 biological experiments. (aq),…

A: The objective of the question is to determine which type of glassware is to be used for the…

Q: Suppose 3.77 g of potassium iodide is dissolved in 300. mL of a 74.0 m M aqueous solution of silver…

A: The chemical reaction; KI + AgNO3 -------> KNO3 + AgI  Given,  Mass of KI = 3.77 g  Volume = 300…

Q: Calculate the total concentration, in molarity, of hydroxide ions when 1,949.5 milligrams of…

A: Given, mass of magnesium hydroxide [Mg(OH)2] = 1949.5 mg = (1949.5/1000) mg = 1.9495 g Concentration…

Q: A student finds that it takes 46.16 mL of 0.2915 M NaOH to titrate 20.00 mL of sulfuric acid…

A: The reaction between Sulfuric acid (H2SO4) and Sodium hydroxide(NaOH) is given as:H2SO4 + 2 NaOH →…

Q: A solution of sodium carbonate contains 5.603 g of Na2CO3 in 250.0 mL of solution. Calculate the…

A: Given :-  mass of Na2CO3 = 5.603 g  volume of solution = 250.0 mL or 0.250 L To calculate :-…

Q: How many grams of anhydrous copper(II) nitrate, Cu(NO3)2, are needed to prepare 500.0 mL of a 0.0750…

A:

Q: 30.00 mL of nitric acid (HNO3) with an unknown concentration was placed into an Erlenmeyer flask.…

A: Given, the Volume of nitric acid = 30.00mL the volume of Ca(OH)2 = 25.36mL molarity of Ca(OH)2 =…

Q: A sample of 7.44 grams of magnesium chloride is weighed out on a balanced and prepared to a volume…

A: Interpretation: A sample of 7.44 grams of magnesium chloride is weighted out on a balanced and…

Q: A chemist prepares a solution of vanadium III bromide   VBr3   by measuring out 0.75g of VBr3 into…

A: we have to calculate molarity of Br−

Q: A simulated seawater sample contains 0.571 M NaCl (aq) and 0.0583 M MgCl2 (aq). Assuming NaCl and…

A: Given, Molarity of NaCl = 0.571M. Molarity of MgCl2 = 0.0583M. The dissociation of NaCl and MgCl2…

Q: What is the molar concentration of sodium chlorate in this sample?

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L)

Q: Calculate the final molarity of ammonium cation in the solution. You can assume the volume of the…

A: See answer below.

Q: How many grams of NaCl are in a 635mL solution of 3.00 M NaCl(aq)?

A: Molarity of solution = 3.00 M Volume of solution = 635 mL = (635/1000) L = 0.635 L Volume of…

Q: In the laboratory you dilute 3.30 mL of a concentrated 3.00 M perchloric acid solution to a total…

A: Given :-  Initial concentration of solution = 3.00 M  Initial volume = 3.30 mL  Final volume = 175…

Q: Apply the concepts of stoichiometry and solution concentration in this section.  Potassium iodide…

A: Answer: volume of KI Solution required is 795.6 mL.

Q: 5.00 mL of 2.5 M NaCl(aq) is diluted with water to the calibration line in a 100.00 mL volumetric…

A: Since the dilution is happening by adding water only  Hence the moles of NaCl taken initially should…

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.