1. CuSO4 a. copper(I) sulfate b. copper sulfate c. copper(II) sulfate d. copper sulphide 2. Nal a. sodium iodide b. sodium(1) iodide C. sodium monoiodide d. sodium iodate

Q: A concentrated perchloric acid solution has a density of 1.67 g/mL at 25°C and is 11.7 M. What is…

A: Given data is as follows: The density of the perchloric acid solution = 1.67 g/mL The molarity of…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 x102 kg/m³. In a certain…

A: (a) When methanol treated with oxygen and gives Carbon dioxide, then it is Combustion type of…

Q: (1) Hydrofluoric acid, HF(aq), cannot be stored in glass bottles because compounds called silicates…

A: 1) The balanced chemical equation for the given reaction is, Na2SiO3(s)  +  8HF(aq)   →  H2SiF6 (aq)…

Q: If 23.3 grams of an aqueous solution of manganese(II) sulfate, MnSO4, contains 5.96 grams of…

A: Percentage by mass – ratio of Mass of solute to the Mass of solution and multiplied by 100 is…

Q: ygen nitial appearance of Mg Shiny lisht Sroy ribbonot mekal 2. Evidence of chemical reaction Hea t…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: To determine the amount of platinum in an alloy, a 8.565 g8.565 g sample of an alloy containing…

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Q: Barium metal was quantitatively precipitated from a 1.52 g sample of BaCl2-2H2O. The mass of the…

A: Given: Mass of the sample BaCl2.2H2O =1.52g Mass of Barium collected = 0.844g

Q: Lead is found in Earth's crust as several different lead ores. Sup- pose a certain rock is 38.0% PbS…

A: Given that:                       Rock consists of:                                          Galena…

Q: (а) (b) NaN3 KCN ? H20 ? HOCH,CH,OH (с) (d) HCN 1. LIAIH4 ? HOCH,CH,OH ? 2. Н,о°

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Q: A precipitate is a that forms when two aqueous solutions are mixed. O liquid gas O solid

A: When two aqueous solution are mixed , sometimes a solid is appear at the bottom, this solid…

Q: 38. Magnesium chloride (MgCl2) is the product of a reaction between magnesium (Mg) and chlorine…

A: The reaction of metal with halogen will form metal halides.  For group two elements, as they have +2…

Q: 4. (aq) (aq) BeSO, (aq) + H,O(1)

A: Given_____    (aq)  +  ____   (aq) → BeSO4(aq) + H2O (l)

Q: An acid, HEI, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

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Q: A 500 mg sample contains FeCl3 and MgCl2. Ammonia was added to the sample to precipitate the…

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Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A: The given reaction is,                       4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g) Clearly, from…

Q: Consider the following reaction of K2S2O3 for neutralizing chlorine in industrial bleaching. K2S2O3…

A:

Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCl. What…

A: Given: Total mass of alloy = 12.3 g. And moles of H2 produced = 1.66 mol. Assuming that there are…

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A: A limiting reagent is the reactant which will exhaust first and is present in lesser quantity     A…

Q: 1. How many GRAMS of manganese(II) are present in 1.89 grams of manganese(II) hydroxide, Mn(OH)2 ?…

A: Number of moles = mass/molar mass  Molar mass of Mn(OH)2 = 88.95 g/mol  Molar mass of Mn(II) =…

Q: Question 5

A: Given,Chalcopyrite is CuFeS2. In 1 mole of chalcopyrite, there is 1 mole of Cu.The percentage of…

Q: a) The formula of a chemical substance that dissolves KCl but not AgCl? b) The formula of a…

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Q: 73.  The hardness of water (hardness count) is usually expressed in parts per million (by mass) of…

A: 1 mol CaCO3 gives 1 mol of Ca2+.

Q: 7. C,H16 + 02 -- CO2 + H20 8. H2SICI, + H20 --→ H&S¡404 + HCI

A: Balanced the chemical equation--

Q: rock is to precipitate the phosphorus as MgNH4PO4, which is then heated to tum it into Mg2P2O7. What…

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Q: Fe(OH); + 3 HBr FeBr, + H,O - - REACTANTS PRODUCTS Element Symbol How Many? Element Symbol How Many?…

A: The balanced chemical equation can be written as follows: Fe(OH)3  +  3HBr  →  FeBr3  +…

Q: is

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Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCI. What…

A: Given, Mass of the sample = 12.3 g  Mass of H2 gas produced = 1.66 mole  What is the percentage of…

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: Given: Hardness=175 mg CaCO3/L

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Q: A 0.355 M K2SO4 solution can be prepared by

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Q: The concentration of sodium sulfate solution is 19.1% by mass. There are ______ g of sodium sulfate…

A: Since % by mass is defined as the mass percent of solute present in the solution Since solute is…

Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCl. What…

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Q: The nitrogen in sodium nitrate and in ammonium sulfate is available to plants as fertilizer. Which…

A: The mass percentage of the sodium nitrate, NaNO3 in a fertilizer, %mNaNO3 is 30.0 % and cost of 100…

Q: A 4.07 g sample of a laboratory solution contains 1.85 g of acid. What is the concentration of the…

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Q: F25gof a 23% by mass magnesium chloride (MW= 95.21 g/mole) solution is reacted with 125.0 mL da125M…

A: Here the problem is solved by mole ratio and the concept of limiting reagent. First it is determined…

Q: A sample of calcium oxalate and magnesium oxalate weighing 0.6240 g is heated and converted to…

A: A chemical reaction is symbolic representation of the conversion of substances to new substances.In…

Q: A scientist needs to make a 250 mL of a solution of ethanol in water that has a molaritv of 012…

A: Given :Volume of solution = 250 mL = 0.250 L                              (Since 1 L = 1000 mL) And…

Q: A 0.772 g sample of a mixture containing only NaBr and CaBr2 is dissolved in water. An excess of an…

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Q: The solution is made by dissolving 25 g fructose in water to make 100 g of the solution. What is…

A: %W/W of the solution is  Mass of solute/mass of solution × 100%   mole of the solution = mass of…

Q: CHAPTER 8 - SOLUTIONS Previous Page 18 of 35 Next O If 8.50 g Ca(NO3)2 is dissolved in enough water…

A: Since molar mass of Cu(NO3)2 = 187.5 g/mol Hence moles of Cu(NO3)2 = mass of Cu(NO3)2 / molar mass =…

Q: 6.778 X 102 vanadium (V) ions react with 15.001 grams of magnesium metal producing vanadium metal…

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Q: c) List An ore with the mass of 1.52 g is analyzed for the manganese content (Mn) by converting the…

A: Ans.

Q: A 102.7-g sample of nitric acid solution that is 70.0% HNO; (by mass) contains a. 4.53 x 10° mol…

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Q: 8. Citric acid (abbreviated H,Cit) is a triprotic acid, so 3 moles of hydroxide ions are required…

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Q: A chemist combines 4.9g of hydrogen gas with 9.4 grams of nitrogen gas to form 11.4g of ammonia.2.9g…

A: Law of Conservation of mass :-It states that for  a chemical reaction mass is conservedor mass of…

Q: 25.015g 775225g Mass of 3.0% H2O2 solution Mass of H2O2 in 3.0% solution Moles H2O2 decomposed mol

A: Molar mass of H2O2  = 2 (Atomic mass of H) + 2 (Atomic mass of O)  = 2 ( 1 g/mol ) + 2 ( 16 g/mol )…

Q: Apollo 13 Lunar Mission You are a NASA engineer. You are the chief engineer for the Apollo 13…

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Q: e. Co2(g)- + 2LIOH(s) → Lİ2CO3(aq) + H2O(1) 40. 9 In a one-person spacecraft, an astronaut exhales…

A: Such kinds of problems are being solved by the use of the mole concept. Stochiometry of the chemical…