If 7.37 g of Naz C0, is dissolved in enough water to make 250. mL of solution, what is the molar concentration of the sodium carbonate? Molar concentration of NazCO3 =| M What are the molar concentrations of the Nat and Co,2 ions? Molar concentration of Na* M Molar concentration of CO,2 2- M

Q: The concentration of Mg2* in a sample of coastal seawater is 1.08 g/kg. What is the molar…

A: concentration of Mg2+ = 1.08 g / kg 1.08 g/Kg means 1.08 g of Mg2+ in 1 Kg ( = 1000 g) Molar mass of…

Q: Oxalic acid, H2C2O4, occurs as the potassium of calcium salt in many plants, including rhubarb and…

A:

Q: A sample of sodium hydrogen carbonate solid weighing 0.1491 g requires 37.83 mL of a hydrochloric…

A: Given data contains, Mass of sodium hydrogen carbonate is 0.1491 g. Volume of hydrochloric acid is…

Q: A solution is made by dissolving 17.8 g of magnesium sulfite, MgSO3, in enough water to make exactly…

A: Given  Mass of MgSO3  = 17.8 gram  Volume of solution  = 100 mL                                  =…

Q: Define

A: Introduction: The number of moles of solute in 1L of  solution is called Molarity

Q: A patient has cholesterol count of 206 mg/dL. What is the molarity of cholesterol in this patient’s…

A: Given,  Cholesterol count = 206 mg/dL Molecular mass of cholesterol = 386.64 g/mole  1 L = 10 dL…

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

A:

Q: If 0.850 L of a 5.00-M solution of copper nitrate, Cu(NO3)2, is diluted to a volume of 1.80 L by the…

A:

Q: An aqueous solution (ρ = 0.988 g/mL) is 6.00% methanol CH3OH (molar mass = 32.04 g/mol) by mass.…

A:

Q: There are 21.19 grams of acetic acid, CH3COOH in 1.83 Liters of solution. What is the concentration…

A: Molarity is defined as number of moles of solute divide by volume of solution

Q: A 0.355 L soft drink contains 45.5 g of sucrose, which has a molecular weight of 342.3 g/mol. What…

A: Given that, Volume = 0.355 L  Mass of Sucrose = 45.5 g  Molar mass or Molecular weight of Sucrose =…

Q: How many moles of Ca(OH) 2 are required to completely react with 30.00 mL HCI solution? (HCl content…

A:

Q: 2) Na,CO3(aq) + CaCl2(aq) → 2 NaCl(aq) + CaCO3(s) Calculate the volume (in mL) of 0.200 M CaCl,…

A: Given balanced chemical equationNa2CO3 (aq) + CaCl2 (aq) →2NaCl (aq) + CaCO3 (s)mass produced of…

Q: A mathematical equation useful for dilution calculations isM(dil)xV(dil)xM(conc)xV(conc) (a) What…

A: molarity is the number of moles of solute dissolved in a 1 liter of…

Q: If 40.1 g of CH;OH (MM = 32.04 g/ mol) are added to a 500.0 mL volumetric flask, and water is added…

A:

Q: KHP (aq) + NaOH (aq) NaKHP (aq) + H20 (1) Trial V; (mL) Vf (mL) 1 33.87 45.73 A student masses out…

A: Given mass of KHP = 1.019 g Molar mass of KHP = 204.22 g/mol Number of moles of KHP = 1.019/204.22 =…

Q: If 27.8 g of CH3OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Mass = 27.80 g V = 500.00 mL

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: What mass of Na2 CrO4 is required to precipitate all of the silver ions from 65.0 mL of a 0.600 M…

A:

Q: 6. A preparation of soda ash is known to contain 98.6% NażCO3. If a 0.845-g sample requires 30.1 mL…

A: 6) Acid base neutralization reaction :-        In the acid base reaction the one gram equivalent…

Q: How many grams of solute are in the following solutions? (a) 200 mL of 0.30 M acetic acid, CH;CO,H…

A: Formula used :-  Concentration (C) = number of mole(n)/volume (L)  And number of moles (n) = given…

Q: If 40.6 g of CH:OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A:

Q: An antacid tablet has a mass of 1.45 g and neutralizes 61.83 mL of a 0.291 M HCl solution. What is…

A: Given that -  Mass of antacid tablet = 1.45 g  Volume of Hydrochloric acid, HCl used = 61.83 mL…

Q: 1. Determine the molarity of the sodium ions when 78.0 g Na,S is dissolved in water for a final…

A: Determine the molarity of the sodium ions when 78.0 g Na2S is dissolved in water for a final volume…

Q: How many moles of Ca(OH) ₂ are required to completely react with 30.00 mL HCl solution? (HCl content…

A:

Q: An aqueous solution was prepared by dissolving 1.567 g of AgNO3 in enough water to make 250.0 mL of…

A: Molarity is one of the concentration term given by formula  Molarity = moles / volume of solution…

Q: A solution containing 150 grams of CaCl2 (110.98 g/mol) is dissolved in 1.00 L of water. what is…

A: Given data: Mass of CaCl2 = 150 g, Molar mass of CaCl2 = 110.98 g/mol, Volume of water = 1.0 L…

Q: The principal ingredient of certain commercial antacids is calcium carbonate, CaCO3. A student…

A:

Q: Citric acid, H3 C6 H; O7 occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is…

A: Given- Molal concentration of citric acid solution = 0.657 m Density of solution = 1.049 g / ml To…

Q: 2.}5 mL of nitric acid, HNO9, are required to react with 50 ml of a 1.25 M Barium hydroxide, Ba(OH2…

A: We know that, Molarity = (Number of mole of solute) / (Volume of solution)  At equivalent point, No…

Q: The molarity of an aqueous solution of sodium hydroxide, NaOH, is determined by titration against a…

A: In the given question we have to calculate the molarity of sodium hydroxide (NaOH) Solution by…

Q: What is the molarity of magnesium ions in a 0.881 M solution of magnesium phosphate?

A:

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: react

A: Acid: V =15 ml, M =? Base: V = 55.7 ml and M = 0.1 M

Q: What is the molarity of a solution made by dissolving 2.355 g of sulfuric acid (H2SO4) in water and…

A: Molarity is one of the ways to measure the concentration of a solution. The unit of molarity is…

Q: Calculate the molarity of a concentrated solution of hydrochloric acid that is 37.7 % by mass HCl;…

A:

Q: If 4.44 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar…

A: The mass of solute is given. First find the number of moles of solute present using the equation,…

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

A:

Q: When 20.00 mL of 1.005 M H,SO4 is titrated with a solution of NaOH, 44.68 mL of NaOH is required to…

A:

Q: What is the concentration in molarity of an aqueous solution which contains 26.41% by mass ethylene…

A: Molarity,M=4.42 mol/L

Q: How many moles oI Ca(OH) 2 are required to completely react with 300.0 mL HCl Solution? (HCl content…

A:

Q: One method used commercially to peel potatoes is to soak them in a solution of NaOH for a short…

A: Given, The normal range of concentration of NaOH = 3 to 6 M Volume of H2SO4 solution = 45.7 mL…

Q: If 1.80 moles of NaCl was dissolved in enough water to make 3.60 L of solution, what is the…

A: Molarity is the no. Of moles of solute dissolved per litre of the solution.

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: A student weighs out a 13.4 g sample of Fe(CH3OO)3, transfers it to a 250. mL volumetric flask, adds…

A:

Q: Vinegar contains (among other things) acetic acid. What is the molarity of acetic acid (HC2H3O2) in…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: What is the molar concentration of sodium ion in a 200 mL solution prepared from 1.223 g of sodium…

A: Given, volume of solution = 200 mL            Mass of sodium phosphate (Na3PO4) = 1.223 g…

Q: What mass of Na3PO4 is required to produce 500.0 mL of solution that is 0.750 M in sodium ions? The…

A:

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.