sample of 0.720 g contains only NaHCO3 and Na2CO3. A student took 0.360 g of the sample and let it fully reacted with 0.100M HCl solution. The student used 50mLof HCl to reach the end point in the reaction.  How many millimole of Na2CO3 in the 0.360g of sample? What is the mass percent of Na2CO3 in this sample?

Q: Calculate the mass of potassium hydrogen phthalate (KHP), KHC8H4O4 needed to react completely with…

A: Given -> Volume of NaOH = V1 = 20.00 ml  Molarity of NaOH = M1 = 0.10M  Molar mass of KHP = 204.2…

Q: MGNH&PO4-6H2O has a solubility in water of 0.023 g/100mL. Suppose a student obtains 0.7193 g of…

A: Solution:- Given the solubility of MgNH4PO4.6H2O is 0.023 g/100 mL  Mass of precipitate = 0.7193 g…

Q: A 7.96-g sample of a diprotic acid requires 136.0 mL of a 0.750 M NaOH solution for complete…

A: Given: Mass of sample = 7.96 g Volume = 136.0 mL Molarity of NaOH solution = 0.750 M

Q: 7. A sample contains an unknown amount of succinic acid, H₂C4H4O4. If 0.3902 g of the sample…

A:

Q: A 0.75 L sample of aqueous Ca(OH)2 is titrated with a 0.384 M HCl solution and 0.89 L are required…

A: The chemical reaction taking place during titration is shown below, Observing the balanced reaction…

Q: A 10.00 mL sample of vinegar is titrated with 0.2731 M NaOH.  22.05 mL of NaOH are needed to get to…

A: Titration The titration is a process of carrying out a chemical reaction between two chemicals…

Q: If 42.6 g of C,H̟OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A:

Q: 9. In a titration of H2SO4 with NaOH, 57.35 mL of 0.0200 M NaOH was needed to neutralize 15.00 ml of…

A: Since we know that when Strong acid react with stronger base it will forms salt and water and the…

Q: A solution is made by mixing 10.25 mL of 4.00 M acetone, 22.36 mL of 1.00M HCI, 10.00 mL of 0.0500…

A:

Q: HCI+NaHCO3-->NaCl+H2O+CO2 A sample of NaHCO3 weighs 0.1015g requires 47.21ml of HClto react…

A:

Q: A student adds a small amount of phenolphthalein to an erlenmeyer flask, and it changes to pink when…

A: Phenolphthalein is colourless in acidic solution while it turns pink in a basic solution

Q: 7.) A student titrated 250 cm3 of sodium carbonate with 125.0 cm of 0.35 mol dm hydrochloric acid.…

A:

Q: A group of students working in a chemistry lab is planning a procedure to neutralize 25.0mL of 2.0 M…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: A single solution is prepared by mixing the following three solutions together: 12.35 mL of 0.1000…

A: When a solution is diluted by adding solvent or another solution, the final molarity of solution can…

Q: An impure sample of potassium hydrogen phthalate (KHP) was titrated to determine the percent…

A: We will use stoichiometry of the reaction to get the answer.

Q: What volume of 0.300 M H2SO4 can be made from 15.5 mL of 0.624 M H2SO4?

A: Molarity is defined as No.of moles(n) of solute divided by volume (V) of solution in liters. We use…

Q: If 30.4 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Molar concentration = Number of moles of solute/Volume of solution (L) Number of moles of solute =…

Q: A 50.00 mL sample of an unknown molarity NaOH solution requires 11.6 mL of a 3.00 M solution of…

A:

Q: A 371-mL sample of 0.165 M MgBr, solution is prepared in a large flask. A 87.1- mL portion of the…

A: Given, the initial concentration of MgBr2 = 0.165 M The volume of the sample of MgBr2 = 371 mL The…

Q: 40.0 ml of nitric acid requires 100.0 ml of 0.500 M potassium hydroxide to neutralize it. What is…

A: The expression to calculate the unknown value from known concentration is given by, M1V1=M2V2 where…

Q: Solid calcium nitrate is slowly added to 125 mL of a 0.0663 M ammonium sulfate solution. The…

A: In order to answer this questions, first write down the entire balanced equation. Next, decide which…

Q: A solution is made by dissolving 3.56 mol of sodium chloride in 250. mL of distilled water. The…

A:

Q: You have prepared 1 L of a 0.1 M solution of NaOH. You accidentally spill about 200 mL of the…

A: The correct answer would be option (D) that is It remains unchanged.

Q: Solid magnesium chromate is slowly added to 150 mL of a potassium fluoride solution until the…

A: Salt produced in precipitation reactions by reaction of aqueous solutions shows negligible…

Q: A. What is the molarity of the barium hydroxide solution? M This barium hydroxide solution is then…

A: Given mass of potasium hydrogen phthalate =0.945g Volume =34.3mL

Q: what minimum mass of cobalt (ii) nitrate must be added

A: Given: Volume of cobalt (II) nitrate is 60.0 mL or 0.060 L Molarity of phosphate solution is 0.0890…

Q: If 35.0 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Concentration Molar concentration or Molarity or amount concentrationis a measure of the…

Q: A 3.860 g sample of a mixture of sodium carbonate and sodium chloride is dissolved in 25.30 mL of…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: A 0.261 g sample of NaHC2O4 (one acidic proton) required 17.5 mL of sodium hydroxide solution for…

A: A chemical reaction between NaHC2O4 and NaOH can be written in the form of an equation as shown…

Q: A 32.0-mL sample of a 0.324 M NAOH solution is titrated with a 0.223 M HCl solution. What will be…

A:

Q: Students in a chemistry lab are making the compound cobalt (II) carbonate. It can be made by…

A:

Q: A 15.0-mL sample of a 0.878 M N2OH solution is titrated with a 0.359 M HCI solution. What will be…

A: AS WE KNOW THAT M1V1=M2V2 IN A TITRATION SOLUTION M1 IS THE MOLARITY OF HCL V1  IS THE VOLUME OF THE…

Q: A solution is prepared by taking 7 ml of 5.9 M HCl and diluting it to 113 ml. Then 15 ml of that…

A: Given that,     Volume of initial 5.9M HCl = 7ml

Q: A student is asked to standardize a solution of barium hydroxide. He weighs out 0.934 g potassium…

A: Given: Mass of Potassium Hydrogen Phthalate = 0.934 g The volume of Barium hydroxide required to…

Q: You set up a titration in the lab to determine the concentration of an HCl solution. What is the…

A: Interpretation: If 0.0100 L of 0.245 M NaOH solution are required to neutralize 0.0150 L HCl, the…

Q: A solution is made by mixing 13.85 mL of 4.00 M acetone, 23.32 mL of 1.00 M HCl, 10.00 mL of 0.0500…

A: Number of moles of acetone present initially = molarity x volume (L) = 4 M x 0.01385 L = 0.0554 mole…

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.