what weight of arsenic trioxide (98.73% As2O3) would be used as a sample so that 35.00 mL of 0.1 N iodine would be needed to titrate it?

Q: The formaldehyde content of a pesticide was determined by weighing 0.9327 g of the liquid sample…

A: The given information is: Mass of liquid sample = 0.9327 g Conc. of NaOH = 0.08624 M Volume of NaOH…

Q: In which substance, benzene or toluene, are theintermolecular forces stronger? In which substance do…

A:

Q: if 44.97 ml of an HCl solution is equivalent to 43.76 ml solution of  NaOH,   and if 49.14 ml of the…

A: Given: Volume of HCl= 44.97 ml Volume of NaOH= 43.76 ml  49.14 ml of the NaOH will neutralize…

Q: Fill in the blanks: An environmental chemist analyzed the effluent from an industrial process known…

A: Since the benzoic acid has only 1 acidic H  Hence moles of NaOH required for complete neutralisation…

Q: A0.4334 g sample of canned tuna was analyzed by the Kjeldahl method; 24.61 mL of 0.1180 M HCl were…

A:

Q: A solution is prepared by dissolving 27.03 grams of FeCl3* 6H2O, and diluting to give a final volume…

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the…

Q: What mass of NaCrO4 is required to precipitate all of the silver ions from 75.0 mL of a 0.100 M…

A: NOTE: please note that molecular formula of sodium chromate indicated is wrong. I have used the…

Q: If 20.0 g of LiOH is added to 0.750 L of 1.00 M Cd(NO₃)₂, how many grams of precipitate will be…

A: The balanced equation for this precipitation reaction is: Cd(NO3)2 + 2LiOH → Cd(OH)2 + 2LiNO3 The…

Q: Suppose that a lake was contaminated with nitric acid (HNO3), and another chemical was needed to…

A: Given that : Suppose that a lake was contaminated with nitric acid (HNO3), and another chemical was…

Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 33.0 mL of 0.460 M Cd(NO3)2 solution?

A: Volume of solution = 33mLMolarity of solution = 0.460 MMass of NaOH to precipitate Cd = ?

Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 37.0 mL of 0.500 M Cd(NO3)2 solution?

A: Given:Volume of Cd(NO3)2 solution = 37.0 mL = 0.037 L.Molarity of Cd(NO3)2 solution = 0.500 M.

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3…

A:

Q: Suppose that 0.3562 g of Na:C:04 is dissolved in a 250.0-mL volumetric flask. If 10.00 ml of this…

A: Given,

Q: A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it…

A: Given data Mass of impure KHP = 1.051 g Molarity of NaOH  solution = 0.1101 M Volume of NaOH…

Q: A 50.0 mL solution of Ca(OH)₂ with an unknown concentration was titrated with 0.340 M HNO3. To reach…

A:

Q: 2) A 50.0 mL sample of phosphoric acid, H3PO4, is titrated with 42.50 mL of 0.250 M NAOH. What is…

A: We define concentration as the amount of solute present in the solution. There are various ways in…

Q: The concentration of SO42– ions in a 45.0 mL sample of seawater is determined by adding a solution…

A: Given information: Mass of barium sulfate = 0.315 g Volume of sample = 45.0 mL or 0.045 L

Q: The calcium in a 200.0 mL sample of natural water was determined by precipitating the cation as…

A: The mass of empty crucible is = 26.6002 g The mass of crucible and CaO is = 26.7134 g The mass of…

Q: What volume of 0.00945 M solution of potassium hydroxide would be required to titrate 50.00 mL of a…

A: Molarity is defined as the amount of solute dissolved per litre of solution. When the titration is…

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.281 M HCl. All the CaCO3…

A: Explanation Step-1 Molarity: Molarity is well-defined as the moles of a solute per litres of a…

Q: The alcohol content in a 10.0-g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The number of moles of solute to the volume of solution in liters is known as molarity.

Q: If 44.97 mL HCl = 43.76 mL NaOH, and if 49.14 mL NaOH neutralizes 0.2162 g of KHC2O4.H2C2O4.2H2O,…

A: Acid and base react with each other forming salt and water. This reaction is termed as…

Q: solution

A: Dear student I have given answer to your question in the image format.

Q: Iron(II) can be oxidized to iron(III) by dichromate ion, which is reduced to chromium(III) in acid…

A: SOLUTION: Step 1: The most common ores of iron are hematite (Fe2O3) and magnetite (Fe3O4) and they…

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.364 M HCl. All the CaCO3…

A:

Q: The nitrogen and protein content of a 0.757 g sample of flour sample was analyzed using Kjeldahl…

A:

Q: The titration of 0.314 g of potassium hydrogen phthalate (KHP) requires 13.16 mL of a NaOH solution.…

A: we need to calculate moles of NaOH for the titration of 0.314 g of KHP

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.299 M HCl. All the CaCO3…

A: Number of mmols = molarity x volume (mL) Chemical equation for the reaction of HCl and CaCO3 can be…

Q: Ammonia (NH3,NH3, MM 17.031 g/mol) and hypobromite (OBr−)OBr−) react according to the following…

A: The balanced reaction taking place is given as, => 2 NH3 + 3 OBr- -------> N2 + 3 Br- + 3 H2O…

Q: (b) An impure sample of (COOH)2.2H2O that had a mass of 1.00 g was dissolved in water and titrated…

A: Whenver an acid and base reacts with each other than they form salt and water and the process is…

Q: If 94.92 mL of a solution of HCI are equivalent to 43.76 mL of a solution of NaOH and if 49.14 mL of…

A: Solution -

Q: When 47.04 mL of H2SO4 is titrated with 0.9416 M NaOH, 34.42 mL of NaOH is required to neutralize…

A: The question is based on the titrations.  we are titrating a strong acid with a strong base. we need…

Q: A 50.0 mL solution of Ca(OH)2 with an unknown concentration was titrated with 0.340 M HNO3. To reach…

A:

Q: The titration of 0.314 g of potassium hydrogen phthalate (KHP) requires 13.16 mL of a NaOH solution.…

A:

Q: A 0.709 g sample of H2C2O4·2H2O is dissolved in water and titrated to a phenolphthalein endpoint…

A: H2C2O4 is a diprotic acid. 1st equivalence point occurs at pH 2-3 and the 2nd equivalence point…

Q: If you require 30.51 mL of .1090 M NaOH solution to titrate 10.0 mL of HC2H3O2 solution, what is the…

A: Chemical reaction between NaOH and acetic acid:                      NaOH + HC2H3O2  →  C2H3O2Na +…

Q: 105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in…

A: Chemical reaction between sodium hydroxide and KHP is given by: