The forensic technician at a crime scene has just prepared a luminol stock solution by adding 18.0g of luminol into a total volume of 75.0Ml of H2O? What is the molarity of the stock solution of luminol?

Q: What is the molarity of 16.3 % by mass solution of sodium acetate. NaC2H3O2 (82.0g/mol) in water?…

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

Q: In the laboratory you dissolve 18.3 g of iron(III) acetate in a volumetric flask and add water to a…

A: Mass = 18.3 g Volume = 250 mL = 0.250 L Molarity = ? Concentration of iron = ? Concentration of…

Q: A stock solution is made by dissolving 2.35 g of aluminum nitride in 250.0 mL of water. a) What is…

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: A student needs to prepare a 500.0 mL solution of 0.150 M Zn(NO3)2. How many grams of Zn(NO3)2 is…

A:

Q: What is the molar and normal concentration of a solution when 25.3 g of calcium chloride was…

A: Molar concentration of a solution can be defined as number of moles of solute dissolved per litre of…

Q: If you were asked to make a 100.0 mL solution with 36.15 g of potassium permanganate (KMnO4), what…

A: The given mass of KMnO4 = 36.15 g The desired volume of the solution = 100.0 ml   Given molar…

Q: How many grams of potassium permanganate KMnO4 are present in 26 mL of a 0.33 M solution of KMnO4?

A:

Q: A 1.00 L NaCl stock solution has a molarity equal to 0.5 M, what is the final concentration when 200…

A:

Q: What is the concentration of a solution iif 6.12 g of calcium sulfite (molar mass 120.2 amu) is…

A: Given: Mass of calcium sulfite = 6.12 g Molar mass of calcium sulfite = 120.2 u Volume of the…

Q: A student pours 350 mL of a 6.0 molar solution of sodium hydroxide into a 750 mL volumetric flask…

A: Given data : Initial volume of the solution = 350 mL = 0.35 L Molarity = 6 M So, Number of…

Q: Calculate the molar concentration of the solution formed when 69.68 g of MgSO4 * 6 H2O is dissolved…

A:

Q: A 14.5 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

A:

Q: What volume of a 0.25 mol/L salt solution in the kitchen contains 5.8 g of sodium chloride?

A:

Q: What is the molarity of a solution containing 8.6 g of NaBr in 0.85 moles of water? (density of…

A: Given, Mass of NaBr = 8.6 g Moles of water (H2O) = 0.85 moles Density of solution = 1.10 g/mL…

Q: A solution of sodium carbonate, Na2CO3, contains 53.0 g of solute in 215 mL of solution. Determine…

A:

Q: If there are 0.10 kg of sodium hydroxide (NaOH) in a liter of solution, what is the molarity of the…

A:

Q: What is the molar concentration of a solution that contains 64.92 g KNO3 (molar mass = 101.10 g/mol)…

A:

Q: a)How many moles of acetic acid are in 100 mL of vinegar? What is the molarity of acetic acid in…

A: Given:Mass of acetic acid= 5g Volume of solution =100 mL

Q: In the laboratory you dissolve 21.7 g of copper(II) fluoride in a volumetric flask and add water to…

A: Given data contains, Mass of copper (ii) fluoride is 21.7g. Volume of solution is 500ml. The moles…

Q: How many grams of ZnCl2 (136.29 g/ mol) are present in 600 mL of a 0.500 M ZnCl2 solution?

A: Given,  The mass of ZnCl2 in 600 mL of a 0.500 M ZnCl2 solution is:

Q: . A solution of AgNO3 contains 29.66 g of solute in 100.0 mL of solution. What is the molarity of…

A: molarity is defined as the moles of solute present in 1 litre of solution

Q: In the laboratory a student combines 46.6 mL of a 0.307 M iron(III) fluoride solution with 22.4 mL…

A: GIVEN: The Volume of Iron(III) Fluoride = 46.6 mL The concentration of Iron(III) Fluoride =0.307 M…

Q: If you had 200. ml of a 3.0 M solution of MgCl2 and accidentally spilled 35.7 ml of pure water into…

A: When we accidentally spill water, the original solution is diluted leading to decrease in…

Q: a forensic chemist prepares 290.0 mL of a 0.649 M solution from a 4.04 M stock solution. what volume…

A: Molarity is the unit of concentration of a solution, and its unit is mol/L. It is defined by the…

Q: What is the concentration in molarity of an aqueous solution which contains 1.15% by mass acetone…

A: 1.15 % by mass , 100 g solution contains 1.15 g actone Moles of Acetone =1.15/58.08       = 0.0198…

Q: What is the molarity of a solution made when 10 kg of Sugar are dissolved to make 100 liter solution

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance.

Q: What is the molarity of the final solution when 255 mL of water are added to 0.550 L of a 2.50 M…

A: Given:Initial concentration M1 = 2.50 MInitial volume V1 = 0.550 L.Final volume V2 = 0.550 L + 255…

Q: What is the molarity of a solution prepared using the given amount of solute and total volume of…

A: Molarity is the concentration term which is defined as the number of moles of the solute to the…

Q: What is the molarity concentration of CuCl2 in a solution prepared by dissolving 33.6g of CuCl2 in…

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

Q: 6. What volume of concentrated nitric acid, HNO, (15.8 M) should be added to water to form 450.0 mL…

A:

Q: n the laboratory you dissolve 12.2 g of magnesium iodide in a volumetric flask and add water to a…

A:

Q: What is the molarity of a solution prepared by dissolving 26.2 g of KCI in enough water for a total…

A:

Q: A student weighs out a 7.23 g sample of CoI2, transfers it to a 125 mL volumetric flask, adds enough…

A: Given: mass of CoI2=7.23 gvolume of solution=125 mL To find: Molarity of CoI2

Q: 1. What is the molarity of a solution in which 85.5 g NaCl is dissolved in 1.5 L of water? 2. What…

A:

Q: The solubility of aluminum sulfate (Al2(SO4)3) in water is 34.22 g per 100.0 mL of solution at a…

A:

Q: Luminol has a molecular weight of 177 g/molg/mol. The forensic technician at a crime scene has just…

A: The molar mass of luminol is 177 g/mol. The number of moles of luminol is calculated below.

Q: .1L of commercial grade hydrochloric acid is added to water to bring the total volume of the…

A: The volume(V1) of commercial grade HCl=0.1 L. The molarity(M1) of commercial grade HCl=12.4 M, The…

Q: What is the molarity when 41.5 g Glucose (C6H12O6) is dissolved in 252 mL Water?

A: Given: Volume of water = 252 mL = 0.252 L                                             (Since 1 L =…

Q: What is the mass of H2SO4 (molar mass 98 g/mol) in 400. mL of 0.100 M solution? O 3.92 g O 4.90 g…

A: Given, Concentration of the solution = 0.100 M= 0.100 mol/L Volume of the solution = 400.0 mL = 0.4…

Q: What are the molarities of the following solutes when dissolved in water? a. 7.69 mmol C2H5OH in…

A:

Q: A beaker contains 1.00 x 102 grams of 0.600 M NaCl. If you transfer 50.0 grams of the solution to…

A: This question can be solved by using the mole concept. Molarity = mole/ liter

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding  20.0…

A: Since the molar mass of luminol  = 177 g/mol                    (formula :C8H7N3O2) hence the moles…

Q: In the laboratory you dissolve 23.7 g of ammonium bromide in a volumetric flask and add water to a…

A:

Q: mass of hydrogen bromide is found in 350 mL of a 0.870 M aqueous hydrogen bromide chloride solution?…

A: Given, Volume = 350 mL  Molar mass of HBr = 80.91 g/mol Mass of HBr = ?

Q: What is the molarity of a solution that is 5% Pb(NO3)2 by weight? The density of the solution is…

A: What is the molarity of a solution that is 5% Pb(NO3)2 by weight? The density of the solution is…

Q: What is the Molarity of a solution containing 200 grams of NaOH in a 2.5 Liter Solution ? 2 Molarity…

A:

Q: In the laboratory you dissolve 14.7 g of chromium(III) nitrate in a volumetric flask and add water…

A: Chromium(iii) nitrate is a strong electrolyte so completely dissociate into ions.

Q: a) Luminol has a molecular weight of 177 g/mol. The forensic technician at a crime scene has just…

A: Introduction: Molarity: The number of moles of solute dissolved in one liter of solution is called…

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 14.0 g…

A: Molarity of any solution can be determined by dividing the number of moles of solute by the volume…

Q: The following photograph shows the laboratory apparatus required for preparing an aqueous solution…

A: The given diagram is represented as follows: