The purity of magnesium metal can be determined by reacting the metal with excess hydrochloric acid to form MgCl2, evaporating the water from the resulting solution and weighing the solid MgCl2 Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (g) Calculate the percentage of magnesium in a 1.72 g sample that produced 6.46 g MgCl2 when reacted with excess HCl.

Q: A 23.5 g sample of NaCl was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A:

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: Given  Mass of KHP = 0.4790 gram  Molar mass of KHP = 204.22 gram/mole  Volume of NaOH solution =…

Q: . What mass of precipitate (in g) is formed when 55.2 mL of 0.500 M AlBr₃ reacts with excess AgNO₃…

A: As per our guidelines we can only solve first question. Please resubmit other questions as next…

Q: 100.0 mL of an aqueous solution containing 0.250 M KOH(aq) is mixed with 100.0 mL of an aqueous…

A: First of all, we need to write down the balanced chemical.  The molar mass of Fe(OH)3 = 106.87g/mol

Q: Solid magnesium reacts with hydrochloric acid according to the following equation: Mg(s) + 2…

A: To solve this problem first we calculate the mass of mole of HCl in the given concentration Then…

Q: What quantity in moles of precipitate will be formed when 73.0 mL of 2.00 M NaI is reacted with…

A: Given reaction is, 2NaI(aq) + Pb(NO₃)₂(aq) → PbI₂(s) + 2NaNO₃(aq) From the given reaction, we can…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A: The balanced chemical equation between H2SO4 and NaOH states that one mole of H2SO4 reacts with two…

Q: In a neutralization reaction, 50.00 mL of 0.8500 M phosphoric acid reacts with 2.500 g of magnesium…

A: The answers to the first three questions can be given as - Given Data -

Q: Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of…

A: The given reaction is: Li2S(aq)+CuNO32(aq)→LiNO3(aq)+CuS(s) The above reaction is not balanced. Its…

Q: Does a reaction occur when aqueous solutions of copper(II) iodide and iron(II) nitrate are combined?…

A: The expected reaction between copper (II) iodide and iron (II) nitrate is as follow,

Q: A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH(aq). If the acid reacts with 28.10…

A: Acid and base reacts with each other forms water and salt. This reaction is called neutralization…

Q: For the following reaction, 116 grams of perchloric acid (HClO4) are allowed to react with 31.0…

A: The maximum amount of phosphoric acid that can be formed is calculated as,

Q: 5.587 grams of Pb(NO3)2 are reacted with 5.587 grams of Na2S, and the resulting precipitate is…

A: The given reaction is as follows. Pb(NO3)2aq+Na2Saq→2NaNO3aq+PbSs The precipitate formed in this…

Q: What quantity in moles of precipitate will be formed when 77.1 mL of 0.150 M AgNO3 is reacted with…

A:

Q: Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of sodium…

A: Given that : Sodium sulfide = Na2S Iron(II) Nitrate = Fe(NO3)2

Q: What quantity in moles of precipitate will be formed when 73.7 mL of 0.150 M AgNO₃ is reacted with…

A:

Q: If 5.15 grams of copper metal react with 14.1 grams of silver nitrate, what is the mass of silver,…

A: This question can be solved by using the number of moles of each of the reactants and thereby…

Q: An experiment is designed to determine the mass percent of sulfate in an unknown soluble sulfate…

A: Balanced chemical equation: BaCl₂ (aq) + Na₂SO₄ (aq) → BaSO₄ (s) + 2 NaCl (aq) From the above…

Q: What quantity in moles of precipitate will be formed when 168.0 mL of 0.350 M NaCl is reacted with…

A:

Q: If 5.40 grams of copper metal react with 14.7 grams of silver nitrate, what is the mass of silver,…

A: Given: Mass of Cu = 5.40 g Mass of AgNO3  = 14.7 g Molar mass of Cu = 63.546 g/mol Molar mass of…

Q: A mixture of MgBr₂ and inert material is analyzed to determine the Mg content. First the mixture is…

A: The given precipitation equation is MgBr2(aq) + 2AgNO3(aq)  2AgBr(s) + Mg(NO3)2(aq).The weight of…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq) , until no…

A:

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO₃)₂ reacts with 23.0 mL of…

A: Number of moles of substance=Concentration of substance x Volume of substanceFor…

Q: Concentration of calcium in a sample may be determined by precipitation using the chromate ion,…

A:

Q: What mass of precipitate (in g) is formed when 45.5 mL of 0.300 M Na3PO4 reacts with 44.5 mL of…

A:

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO₃)₂ reacts with 31.0 mL of…

A: ZnNO32+2 NaOH→ZnOH2 s+2 NaNO3 aqStength of ZnNO32=20.5x0.700 M1000=0.0143Stength of NaOH=310x0.700…

Q: sample of barium hydroxide, Ba(OH)2, was placed in 100 mL of 1.51 M HBr and the following reaction…

A: moles of BaOH2 given=25.6g171.34g/mole0.149 molesmoles of HBr given=100×10-3L×1.51M0.151 moles

Q: Concentration of calcium in a sample may be determined by precipitation using the chromate ion,…

A:

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 4.30 mL sample. About…

A:

Q: A solution of potassium permanganate was titrated by adding 28.75 mL of the solution to a solution…

A: The question is based on the concept of quantitative analysis . we need to calculate concentration…

Q: In the following reaction, identify the limiting reactant (note the difference in units: Mg(OH)2…

A:

Q: A student was given a 3.708-g sample of a mixture of potassium nitrate and potassium bromide and was…

A: Given ; Mass of sample = 3.708 g Mass of AgBr precipitate formed = 2.957 g And the sample contains…

Q: What quantity in moles of precipitate will be formed when 100.0 mL of 2.00 M NaI is reacted with…

A:

Q: Many common titrations involve the reaction of acid and base. If 24.74 mL of 0.503 M H2SO4solution…

A:

Q: amount (in moles) of the excess reactant is left?

A: The values are given as follows:   Initially moles of FeS = 0.216 mol   Initially moles of HCl =…

Q: In the laboratory, a student adds 45.1 mL of water to 10.6 mL of a 0.773 M hydrobromic acid…

A: Given : Initial concentration of hydrobromic acid i.e HBr = 0.773 M Initial volume of HBr solution =…

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: From the formula of molarity and reaction between given compounds we can determine the Molarity of…

Q: Consider the reaction shown below between hydroxide ions (OH), hypochlorite ions (CIO), and chromium…

A: A chemical reaction between hydroxide ions (OH-), hypochlorite ions (ClO-), and chromium hydroxide…

Q: What quantity in moles of precipitate will be formed when 45.6 mL of 0.550 M AgNO3 is reacted with…

A:

Q: How many moles of precipitate will be formed when 100 mL of 2.00 M NaBr is reacted with 70.0 mL of…

A: The mole of precipitate will be formed has to be determined

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.43 mL sample taken…

A:

Q: and

A: reaction occur when aqueous solutions of manganese(II)sulfate react with potassium carbonate.…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".