Part 1 See Periodic Table See Hint Calculate the number of grams of aluminum required to prepare 119.0 g of chromium metal by the first reaction. g Part 2 See Hint Calculate the number of grams of silicon required to prepare 119.0 g of chromium metal by the second reaction. g

Q: 3. A student carried out the synthesis of aspirin as described using 3.00 g of salicylic acid and…

A: #3: Mass of salicylic acid (MW = 138.12 g/mol) used = 3.00 g  Volume of acetic anhydride used, V =…

Q: In the industrial synthesis of aspirin, 200 kg of salicyclic acid, C7H6O3 and 150 kg of acetic…

A: The balanced equation for the formation of aspirin from salicylic acid and acetic anhydride is:…

Q: A 0.8798 - g sample of Al2(CO3)3 decomposed with HCI; the liberated CO₂ (MW = 60.0g) was collected…

A: Given :  Weight of sample = 0.8798 gm  Weight of CO2 produced = 0.3369 gm  Molar weight of CO2 = 44…

Q: Calculate the number of Hions in 8.14 g of SrH₂. Hrdions Enter your answer in scientific notation.…

A:

Q: 1. Use chemical symbols to generate the factor needed to convert the weight of the substance in uie…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: . C. 6. . 6. . S. .. .. _H3PO4 + КОН → K+ _B₂O3 → HCI + NaOH → C + Na + NaOH + Rb + _C6H6 + S8 → _O₂…

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Q: Si(s) + 2C12(g) -> SiCI.(0) In one reaction, 0.507 mole of SiCI4 is produced. What mass (grams) of…

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Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: Chlorine gas , water , and Manganese ( II ) chloride can be produced in the lab by adding…

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Q: What is the mass (grams) of salt in 10.0 m³ of ocean water? (1 mol salt = 58.44 g salt, 1 L ocean…

A: Given: 1 mol salt = 58.44 g salt 1 L ocean water = 0.60 mol salt We have to find the mass (in grams)…

Q: Consider the Harber-Basch process for the synthesis of ammonia from its elements. Calculate the…

A: Interpretation-  To determine the theoretical yield in moles NH3 from the complete reaction of 59.8…

Q: 2. What is the gravimetric factor (a) For acquiring the weight of Ag:CrO, from the weight of AgCI?…

A: The analytical method that is employed for the quantitative determination of unknown substances in…

Q: 15. Laboratory analysis of a sample yielded the following data for the combustion of Nickel Ni(s) +…

A: Given,  The combustion reaction:                               Ni(s) + O2(g) -------> Ni O(s)…

Q: 10. Which of the following does not match the others? 168 (A) 67.2 3.88 1000 100 10 All, (M)/mol)…

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: a. If 0.405 mol ethane (C2H6) and 29.4 g oxygen react, how many moles of water will be formed? 2…

A: Given reaction is  2 C2H6 (g)  +  7 O2(g) --> 4 CO2(g) + 6 H2O(g) 2 mol.              7 mol.…

Q: A 14.587 g14.587 g sample of CaCl2CaCl2 was added to 12.374 g12.374 g of K2CO3K2CO3 and mixed in…

A: To calculate the percent yield of CaCO3, we first need to determine the theoretical yield of CaCO3…

Q: (b) 1.9-BBN 2. H₂O2, KOH

A: Given,The reaction:

Q: Find the molar mass of CO(NH2)2-

A: Molar mass of compound is sum of atomic masses of constituent atoms . Atomic mass of C = 12.01…

Q: (3) Barium chloride has a hydrated form, BaCl2 XH2O. A 7.25 g sample of the hydrate lost 1.07 g of…

A:

Q: che percentage of C

A: Malachite is the carbonate hydroxide of copper which is green in color, which formed by the ore…

Q: The fizz produced when an Alka-Seltzer tablet is dissolved in water is due to the reaction between…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: A 2.00 g sample of methamphetamine was found to contain 1.61gC, 0.203gH and 0.188 g N. What is its…

A: Given : Mass of C = 1.61 g Mass of H = 0.203 g Mass of N = 0.188 g Assuming the empirical formula of…

Q: A chemist wishes to make 5.00g of CuCl by the reaction: CuCl₂ + Na₂SO3 + H₂O ---- CuCl + Na₂SO4…

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Q: A 0.250 g sample of hydrocarbon undergoes complete combustion to produce 0.845 g of CO2 and 0.173 g…

A:

Q: 5. A 1.547 g sample of CuSO4 xH2O is heated to drive off the water leaving behind 0.989 g of…

A: total weight of the sample = 1.547 gweight of anhydrous CuSO4 = 0.989 gno. of H2O molecules in…

Q: before 1959, oxygen was popularly used to define the unit of mol. in 1967, the international…

A:

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: 1. Balanced chemical equation Given;

Q: For each of the equations, determine the change in the number of moles of gas, Angas . (NH,),CO3(s)…

A: A chemical reaction is represented by using a chemical equation. In a chemical equation, the species…

Q: 3 Fe(s) + 4 CO2(g)  -------Fe3O4(s) + 4 CO(g) Keq =   . (b) Fe2O3(s) + 6 HCl(g)  ------2…

A: To solve this problem we have to write the equilibrium expression of given equations .    Note : In…

Q: 4. (. A mixture containing onlyl FeClh and AIClı weighs 5.95 g. The chlorides are converted to the…

A: Given: Weight of mixture containing FeCl3 and AlCl3 = 5.95g Weight of mixture containing Fe2O3 and…

Q: Gypsum bandages are used to fix fractures. When gypsum hardens, a reaction occurs…

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Q: 5) King Krator the Merciless has called on Pogo, a humble goldsmith, to make a crown for the King.…

A: The mass of gold given by King Krator to gold Smith Pogo is ---- 14 oz. The density of gold=19.3…

Q: When heated, Iithium reacts witn nitrogen to form litnium nitride: 6Liisst Ng!g) 2 Lig Nis) alg)→2…

A: given the mass of Li(s) = 12.8 g  molar mass of Li = 6.94 g/mol => moles of Li = 12.8 g * (1…

Q: The following data was obtained in an experiment to determine the water content in sodium alum, [Na…

A:

Q: Tanium occurs in the magnetic mineral menite (FeTiO₂), which is often found mixed up with sand The…

A: The explanation is given below-

Q: A 14.590 g14.590 g sample of CaCl2CaCl2 was added to 12.028 g12.028 g of K2CO3K2CO3 and mixed in…

A: Determine limiting reagent:From the balanced chemical equation, 1 mol of CaCl2 and 1 mol of K2CO3…

Q: 4.84. Aluminum chloride (AICI3) is used as a catalyst in the production of polyisobutylene, which is…

A: Given, Mass of Aluminium (Al) metal reacts = 2.70 g Mass of chlorine (Cl2) gas reacts = 7.10 g…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.