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: 8. What volume of a 0.500 M solution of Nal could be prepared with 113 g of solid NaI? 9. Calculate…

A: In this question, we want to determine the Concentration of diluted Solution in each cases. you can…

Q: If the absorbance of a solution of copper(II) ion decreases by 18.00% upon dilution, what volume of…

A: According to Beer-Lambert law,

Q: 1.45 g Mg(OH)2 (58.32g/mol) is added to 45.0 ml of 1.00M HCL solution, how many grams of…

A:

Q: 19- by heating 2.86 g of hydrated sample of washing soda Na,CO3.XH20, till Complete drying the…

A: This reaction is all about the  conversion of hydrous salt into anhydrous salt by applying heat to…

Q: Calculate the molarity of NO3-(aq) ions in a solution containing 2.89 grams of scandium nitrate…

A:

Q: 1).  Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M…

A: Since, this is multiple questions we are answering first question.

Q: 1. If 8.5 g of pure ammonium phosphate, (NH₂),PO,(s), is dissolved in distilled water to make 400 mL…

A: Dear student , since you have posted multiple questions we are allowed to solve only first question…

Q: How many milliliters of 2.00M HCl(aq) are required to react with 2.15g of an ore containing 36.0%…

A: Calculation for mass of zinc:

Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: A physical process is one in which no chemical reaction occurs and no chemical bond is formed or…

Q: What weight of Pb(NO3)2 (331.2 g/mol) will have to be dissolved in 0.50-L of water to prepare a 100…

A:

Q: 4. What mass of hydrogen sulphate can be prepared from 50.0 g sulphur dioxide, 15.0 g oxygen, and…

A: We have given,  Mass of sulphur dioxide = 50.0g Mass of oxygen = 15.0 g  Mass of water = 980.0g

Q: What mass of Glauber’s salt must be used to provide 1.00 mol of sodium sulfate?

A: The chemical formula of sodium sulfate is Na2SO4. The chemical formula of Glauber's salt is…

Q: An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g.…

A: Percentage of sulphur is 13.74% .

Q: What mass in grams of tin would be required to completely react with 1.20 L of 0.750 M HBr in the…

A:

Q: How many ions can you get in solution from 123.1 grams of MoCl3?

A:

Q: 34. What volume of 0.782 M HCI is needed to neutralize 29.1 grams of Al(OH)3? 3 HCI (aq) + Al(OH)3…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

Q: the reaction of sodium phosphate (Na3PO4) solution with lead (II) chlorate [Pb(ClO3)2] solution…

A: Precipitation reactions occur when cations and anions in aqueous solution combine to form an…

Q: 173: Upon oxidation, barium (Ba) compounds give

A: Since we know that Ba is an alkaline earth metal which generally identify by  flame test .

Q: 2AgNO3(aq)+MgCl2(aq)→2AgCl(s)+Mg(NO3)2(aq) What mass of silver chloride can be produced from 1.67 LL…

A: Given Volume of AgNO3 = V =1.66 L Concentration of AgNO3 = M = 0.112M Moles of AgNO3 = V x    M…

Q: 4. Which is more efficient method of separating solids from liquids by filtration or by decantation?…

A: 4. Filtration is more efficient to separate solid from liquid. If decantation is done , there is a…

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

A:

Q: The mercury in a 1.9458 g sample was precipitated as Hg5(IO6)2  by treatment with an excess of…

A: Given  mass of sample = 1.9458 g mass of precipitate Hg5(IO6)2 = 0.5218 g    Required data -…

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: If the absorbance of a solution of copper(II) ion decreases by 30.00% upon dilution, what volume of…

A: Absorbance of a solution is directly proportional to the concentration of the solution. On dilution,…

Q: How many milliliters of 0.845 M Al(OH)3 are required to exactly titrate 0.217 moles of H2C2O4?

A: Given information, Concentration of Al(OH)3 = 0.845 M Moles of H2C2O4 = 0.217 mol Volume of Al(OH)3…

Q: Potassium permanganate in acidic solution is used to titrate a solution of iron(II) ions, with which…

A:

Q: Write a balanced equation for the reaction of nitric acid, HNO3(aq), with magnesium hydroxide,…

A:

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

A:

Q: What volume of 0.0521 M Ba(OH)2is required to neutralize exactly 14.20 mL of 0.141 MH3PO4?…

A: n-factor of barium hydroxide is 2 and that of phosphoric acid is 3.

Q: weight of Mn

A:

Q: What mass is Na2CO3 is needed to produce 5.Og of CO2

A:

Q: What is the molarity of the chlorate anion in solution after 42.00 mL of 3.000 M NAOH is added to…

A:

Q: Thyroxine (C₁₅H₁₁I₄NO₄) is a hormone synthesized by thethyroid gland and used to control many…

A:

Q: Exactly 0.2220 g of pure Na2CO3 was dissolved in 100.0 mL of 0.0731 M HCl.   (a) What mass in grams…

A: First of all we need to find the limiting reagent by considering the balanced reaction. When we…

Q: How many milliLiters of 0.01000 N Ba(OH)2 are theoretically required to titrate 0.03000 g of H3AsO4…

A: Given : Mass of H3AsO4 -->  0.03000 g Normality of Ba(OH)2 = 0.01000 N

Q: (a) Write chemical equations to show what happens when each of the following substances is mixed…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. Predict the products and balance the resulting equation. HO incomplete O2

A: Phenol react with oxygen gas to form pink colour p-Benzoquinone and water as product.

Q: What weight (in grams) of oxalic acid (MW= 90 g/mol) will be required to prepare 1 liter of 0.25 N?

A:

Q: would a percipitation reaction occur between CuSO4 and Pb(NO3)2?

A: Balanced reaction between CuSO4 and Pb(NO3)2 is shown below. According to solubility rules for…

Q: A magnesium ribbon of mass 4.0g is placed in a dilute hydrochloric acid contained in beaker.…

A: Given mass of Mg = 4.0 g  Mg is reacted with dilute HCl, then find the number of moles of HCl…

Q: What is the hydronium ion concentration of a 0.0030 M solution of HNO3? What is its pH?

A: Strong acids can dissociate entirely into +vely and -vely charged ions in their aqueous solutions.…

Q: What is the equation for the reaction of Mg(s) with CuSO4(aq)?

A: Given :- Mg(s) + CuSO4(aq) →  To complete :- above equation

Q: How many grams of Fe(NO3)3 must be used to prepare 1.50 L of a 0.0625 M Fe(NO3)3 solution?

A: Given, Volume of the solution = 1.50 L 0.0625 M Fe(NO3)3 solution i.e. molarity of the solution =…

Q: Write the balanced NET ionic equation for the reaction when aqueous NiCl₂ and aqueous Na₂S are mixed…

A: A chemical reaction in which the number of atoms present on the left hand side of the equation is…

Q: 3. A 0.709 g sample of H2C2O4:2H2O is dissolved in water and titrated to a phenolphthalein endpoint…

A:

Q: Aluminum can be used to remove the tarnish from silver: 3Ag2S(s) + 2Al(s)→ 6Ag(s) + Al2S3(s) How…

A: Atomic weight of alluminium is 26.98 g and molecular weight of Ag2S is 247.8 g    Note: According to…

Q: What is the concentration of NO3- ions in a solution prepared by dissolving 30.0 g of Ca(NO3)2 in…

A: Given,  mass of Ca(NO3)2 = 30.0 g Volume of solution = 300 ml = 0.3 L Molar mass of Ca(NO3)2 =…

Q: What volume of water should be removed from 605. mL of 0.362 M CH1206(aq) to change the…

A: Interpretation- Volume of water that should be removed from 605 mL of 0.362 M C6H12O6 aqueous…

Q: What is the percentage by mass of sand if 15 kg is mixed to make 58 kg of concrete?

A: Mass percent of sand = (mass of sand) × 100 / (mass of sand + mass of concrete)