Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of palmitic acid is prepared by mixing 112 g palmitic acid with 725 mL of benzene C6H6. The density of the resulting solution is 0.902 g/mL.

Q: 2) Calculate the molarity of a solution made by dissolving 12.5 grams of Na₂CrO4 in enough water to…

A: The number of moles of solute present in 1 L of solution is called as molarity(M)  Or…

Q: What is the molarity of a solution made by dissolving 5.42 g of magnesium nitrate {Mg(NO3)2} in…

A: Here the solute is magnesium nitrate, Mg(NO3)2 and solvent is water.  Since molarity is moles of…

Q: hat volume of a 2.50 M HCl solution should you use to prepare 2.00 L of a 0.100 M HCl solution?…

A: Molarity can be determined using the formula : Molarity = Moles of Solute/Volume of Solution(in L)…

Q: A student has 500.0 mL of a 0.1111 M aqueous solution of NazCO3 to use in an experiment. She…

A:

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: Two sucrose solutions, 125 mL of 1.50 M C12H22O11 and 275 mL of 1.25 M C12H22O11, are mixed.…

A: Given: Molarity of first sucrose solution (M1) = 1.50 M Volume of first sucrose solution (V1) = 125…

Q: An aqueous solution contains 2.52 g of Pb(NO3)2 in one liter.  How many moles of each ionic species…

A:

Q: Calculate the molarity of the following solutions:   (a) 0.80 mol of solute in 118  mL of solution…

A: In multipart question we solve only first three subparts according to Bartleby Guidelines. Molarity…

Q: A 1000 mL sample of seawater was found to have contained 40 ?g of Hg2+ ions. What is the…

A: This question is related to stoichiometry. In this question, volume and density of seawater sample…

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: 3. Aqueous potassium phosphate is added to 545 mL of a solution containing calcium chloride to…

A:

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

A:

Q: What is the molarity of a solution prepared by dissolving 64.9 grams of Pb(NO3)2 in enough water to…

A: The number of moles of lead nitrate are as:

Q: 1. A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given : Weight of SiO2 precipitate = 3.1754 g Purity of ultrapure silicon = 99.98%

Q: In an experiment, 614.985 ml of standard 0.184 M Na25203 solution is diluted to 1.0L. what will be…

A:

Q: Potassium fluorine is used for frosting glass. Calculate the molarity of a solution prepared by…

A:

Q: Write the balanced neutralization reaction that occurs between H2SO4H2SO4 and KOHKOH in aqueous…

A: Answer: When acid and base solutions are mixed then water and salt forms as a product and lots of…

Q: The mass percent of acetic acid (CH3COOH) in a bottle of vinegar is 5.45% in water. What is the…

A: Consider the volume of the solution as 1 L (1000 mL).Determine the mass of l L of solution from the…

Q: 158.56 g sample of sucrose (C12H22O11) is dissolved in 0.89 L of water.47.5 mL of the original…

A: The molar mass of a compound is calculated by adding up the atomic masses of each element in the…

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: In chemistry, the term concentration is used to define the amount solute in given amount of…

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

A: The question is based on the concept of molarity.    it is defined as number of moles of solute…

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: A solution is prepared by dissolving 25.0 mL ethanol, C₂H5OH (density = 0.789 g/mL), in enough water…

A: The volume of the ethanol is .The density of the enthanol is .The volume of the solution is .To find…

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: Solution A is 0.2400 M Ca(NO3)2(aq). Solution A is diluted by a factor of 3 to form Solution B.…

A: The reaction taking place is  3As2O3 + 4NO3- + 7H2O + 4H+ → 6H3AsO4 + 4NO Balancing explanation :…

Q: A student carried out the synthesis of aspirin as described using 3.00 g of salicylic   acid and 6.0…

A: When salicylic acid and acetic anhydride react, there will be the formation of aspirin and acetic…

Q: If a chemist mixed 100.00 mL of dichloromethane (CH2Cl2) which has a density of 1.33 g/mL and…

A:

Q: Give a clear handwritten answer  What mass of solute is contained in 16.0 mL of a 0.300 M NaF(aq)…

A:

Q: Consider the combustion of methane, CH4. CH4 (g) + 202 (g) C02 (g) + 2H20(g) Suppose 8.00 g of CH4…

A: Given: Molarity of H2SO4 is 4.00 M Weight of CuO is 1.60 g

Q: What mass of Na2SO4 is required to precipitate all of the lead cations found in an 18.5 ml sample of…

A:

Q: What volume (in mL) of a 2.60 M solution of CH₃CH₂CH₂OH must you add to a 1.00 L volumetric flask so…

A:

Q: Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol…

A: Volume of solution = 163 mL  Volume of solution in L = 0.163 L  Molarity of solution = 3.108 M  We…

Q: How many grams of NO 3 - ion are in the  final solution?

A: Given : Mass of Co(NO3)2 in stock solution = 6.00 g And volume of stock solution prepared = 100 mL =…

Q: Dilution and Density 5. Dilute sulfuric acid solutions are prepared by slowly adding concentrated…

A: The problem is asking us to find the volume of concentrated sulfuric acid needed to prepare a…

Q: An 8.00 mL sample of a stock solution of sodium acetate is diluted with enough water to form 100.0…

A: In this question, we want to determine the Concentration of original stock solution.  How we can…

Q: A solution is made by mixing 48.2 g of alcohol into 100.0 mL of water (DH2O = 1.00 g/mL). What is…

A: Given ; mass of alcohol = 48.2 g  And volume of water = 100 mL  Since density of water = 1 g/mL…

Q: A solution of 250.0 mL of a 0.200 M NaHCO3 solution is to be prepared. The solution is diluted by…

A: In the given problem, the molarity of the serially diluted solution can be calculated by using the…

Q: Calculate the mass percent of solute in each solution. Calculate the mass percent of 2.47 g KCl2.47…

A:

Q: A concentrated perchloric acid solution is 69.8% HCIO4 by mass and its density is 1.68 g mL-1. What…

A: Using molarity formula and equation of dilution we can solve this problem.

Q: If you are asked to prepare a 3.10 M NaOH solution in the laboratory, to what volume should you…

A:

Q: 12.8 mL of 0.0354 M potassium permanganate solution is used to titrate 0.188 g of an unknown sample…

A: Given -> Volume of KMnO4 = 12.8 ml = 0.0128 L (1L = 1000ml) Molarity of KMnO4 = 0.0354 M Weight…

Q: Concentrated nitric acid is 16 M.   What volume of HNO3HNO3 must be diluted with distilled water…

A: Given: The concentration of the stock solution of nitric acid = 16 M We have to find the volume of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.