what is the percent of SiO2 in the starting mixture?

Q: Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium…

A: 1) Molar mass of CaO, MM = 1 x MM(Ca) + 1 x MM(O)        = 1 x 40.08 + 1 x 16.0        = 56.08 g/mol…

Q: During a lab preparation of aspirin, a student used 1.92 g of salicylic acid and an excess amount of…

A: The given data is as follows: The mass of salicylic acid = 1.92 g The mass of aspirin produced =…

Q: What amount of water (in moles) is produced by the reaction of 5.00 mol C5H12 with 27.5 mol O2?…

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Q: 5) If 42.1 g of benzene reacts with 73.0 g of Bromine, given the reaction CsH6 + Br2 → CGH$B + HBr…

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Q: Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction 2K [Ag(CN)…

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Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

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Q: What is the percentage of calcium carbonate present in the original mixture?

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Q: 23 g of FeCl3are reacted with 388.91 g of NH4OH. Given the unbalanced chemical equation: FeCl3 +…

A: Percent yield = Actual yieldTheoretical yield×100and limiting reagent the, recigent which are…

Q: What is the theoretical yield in grams of Ca(OH)2 if 2.04 g of KOH reacts with 3.02 g of CaCl2x2H2O…

A: Hello. Since multiple questions have been posted, the first question shall be only solved in this…

Q: 49. Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O,…

A: Given information: Mass of sample = 255 mg Mass of carbon dioxide = 561 mg Mass of water = 306 mg

Q: How many grams of H2 can be formed from 87.2 grams of NH3 in the following reaction? 2 NH3(g) 3 H2…

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Q: What is the maximum amount of grams of Fe that can be produced from 33.4 g of iron(iii) oxide mixed…

A: Interpretation: The maximum amount of grams of Fe that can be produced from 33.4 g of iron(iii)…

Q: 1. How many moles of Al are necessary to form 76.2 g of AlBr₃ from this reaction: 2 Al(s) + 3 Br₂(l)…

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Q: 1. In an experiment, 41.0g of iron (II) chloride reacts with 23.0 g of sodium phosphate, producing…

A: The balanced reaction taking place is given as, => 3 FeCl2 + 2 Na3PO4 → Fe3(PO4)2 + 6 NaCl Given:…

Q: Combustion of a compound of formula CxHyO₂ yields 0.209 g H₂O (molar mass = 18.016 g/mol) and 0.512…

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Q: Consider the following reaction: Al(OH)3 (s) + 3 HCl (aq) →AlCl3 (aq) + 3 H2O (l) a. What mass of…

A: First Calculate mole of Al(OH)3 by mass/molar mass  Then use mole mole relationship  1mol Al(OH)3…

Q: When 0.0916g P4O6 were mixed with 0.113 g H2O, a student obtained 0.121 g H3PO3. What was the…

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Q: 114 grams of Al and 186 grams of Cl, 2Al + 3Cl, 2AICI, A. Which is the limiting reactant? B. Which…

A: Limiting reactant: The limiting reactant in a chemical reaction is a reactant that is totally…

Q: If 19.3 grams of an aqueous solution of ammonium nitrate, NH4NO3, contains 1.55 grams of ammonium…

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Q: Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics,…

A: Combustion :- Burning of a compound in excess of air or oxygen is called combustion. Combustion of…

Q: Suppose a student starts with 2.4319 g of a sand mixture and separates the components into 1.3012 g…

A: percent of SiO2 in the starting mixture =    =Mass of SiO2 × 100/ Total Mass of the mixture =…

Q: If a fertilizer bag indicated that it contained 35 percent K2O, a. What does the analysis look like…

A: The percentage composition can be determined based on the molecular formula of the compound. The…

Q: Ca + 2H2O ? Ca(OH)2 + H2 Using the equation above, how many molecules of H2 could be produced of 50…

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Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

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Q: Consider the reaction: ANH3(g) + 502(g)-2NO(g) + 6H;O(g) When 0.248 mol of NH3(g) is reacted with…

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Q: A solution of CaCI, and K.PO, results in the formation of Ca (PO. and KCI. The balanced chemical…

A: Given balanced reaction; 3 CaCl2 + 2 K3PO4 → Ca3(PO4)2+6 KCl Molar mass of CaCl2 = 111g/mol Molar…

Q: Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium…

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Q: A 52-kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given mole of hemoglobin = 7.2 × 10⁻³

Q: Hydrogen chloride can be made in the laboratory by the reaction of sodium chloride and sulfuric…

A: Given unbalanced equation is NaCl(s) + H2SO4(aq) ------> HCl(aq) + Na2SO4(aq) The balanced…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Molar mass of morphine is 285.34 g/mol. When a mixture of NaCl and morphine undergoes combustion,…

Q: Suppose a student starts with 2.4066 g of a sand mixture and separates the components, recovering…

A: given,mass of the NaCl= 1.3012g  mass of the  SiO2 =0.5591g  mass of the sand mixture =2.4066g mass…

Q: 3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O what mass of ammonium perchlorate (in kg) should be…

A: Given,  3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O The mass of aluminum = 5.00 Kg  The mass of…

Q: A 12.21 g sample of a compound that contains sulfur is analyzed by precipitating all the sulfur as…

A: Given: The mass of the sample = 12.21 g The mass of BaSO4 = 11.227 g Standard data: The molar…

Q: For the reaction CaI2+2AgNO3⟶2AgI+Ca(NO3)2 How many grams of silver nitrate, AgNO3, are needed to…

A: The number of moles of calcium iodide is calculated as,

Q: Industrially, nitric acid is produced by the Ostwald process represented by the following equations:…

A: Percent yield is defined as the percentage ratio of the actual yield to the theoretical multiplied…

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

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Q: Isoeugenol is the compound which gives the characteristic odor to nutmeg and contains carbon,…

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Q: Suppose a student starts with 2.4464 g of a sand mixture and separates the components into 1.3012 g…

A: According to the question, we had a sand mixture consisting of NaClNaCl, CaCO3CaCOX3, and SiO2SiOX2.…

Q: An impure sample of table salt (NaCl) that was dissolved in water and treated with silver nitrate to…

A: Mass of the impure sample = 1.741 g  Mass of AgCl formed = 4.084 g

Q: For the chemical reaction   CaI2+2AgNO3⟶2AgI+Ca(NO3)2   what mass of silver iodide is produced…

A: Applying concept of limiting reagent and mole concept.

Q: organic compound containing C, H, and O is burned completely in oxygen, 8.1 g of CO2 and 4.956 g of…

A: Mass of CO2 = 8.1 g molar mass of CO2 = 44.0 g/mol Moles of CO2 = mass/MM    = 8.1/44 = 0.184 mol…

Q: 49. Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction…

A: The balance chemical reaction :  2K[Ag(CN)2](aq) + Zn(s) ---> 2Ag(s) + Zn(CN)2(aq) + 2KCN(aq)…

Q: 2Fe(s) + 3Cl2(g) → 2FeCl3(s) Given an initial mass of 11.01 g Fe, an excess of Cl2, and assuming…

A: The number of moles of 11.0 g of Fe is calculated as shown below where 55.845 g/mol is the molar…

Q: Given a raw material of 2000 g Salicylic acid and 2500 g Acetic Anhydride, the actual yield is 1180…

A: % mass composition is given by  = (molar mass / given mass) × 100

Q: If the reaction N2 + 3 H2 → 2 NH3 is carried out using 1.40 g of N2 and 0.468 g of H2, what mass of…

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Q: A student carries out the precipitation reaction shown below, starting with 0.030 moles of calcium…

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Q: 1)The mass of the product obtained from the precipitation reactions is always less than expected.…

A: Two questions based on solutions concept, which are to be accomplished.

Q: ilver is often extracted from ores such as K[Ag(CN)_2] and then recovered by the reaction…

A: The number of particles present in one mole of a substance is equal to the Avogadro's number which…