A sample of limestone and other soil materials was heated, and the limestone decomposed to give calcium oxide and carbon dioxide.   A 4.194 g sample of limestone-containing material gave 1.55 g of CO2, in addition to CaO, after being heated at a high temperature. What was the mass percent of CaCO3 in the original sample?

Q: Limestone is mostly consist of CaCo, You find that a sample of limestone weighing 153 mg gives 147…

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Q: If 1.75 g of potassium iodide and 3.21 g of silver nitrate are combined, then what is the limiting…

A: First, we must examine the reaction stoichiometry. In this reaction, one mole of AgNO3 reacts with…

Q: Like many metals, aluminum reacts with a halogen to give a metal halide: 2 Al(s) +3 Br2 (4) → Al,Bre…

A: Given- Reaction 2 Al (s)  + 3Br2 (l) ---> Al2Br6 (s) Mass of Al = 9.71 g To find- Mass of Br2…

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Q: The molar mass of M(OH)2 formed by the hypothetical metal M, is 144.096 g/mol what is the molar mass…

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Q: Table salt, NaCl(s),NaCl(s), and sugar, C12H22O11(s),C12H22O11(s), are accidentally mixed. A 5.50…

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Q: [References] A sample of limestone and other soil materials was heated, and the limestone decomposed…

A: Calcium carbonate decomposes into calcium oxide and carbon dioxide. The equation for the balanced…

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Q: Table salt, NaCl(s), and sugar, C1,H„O(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced chemical equation for combustion of sucrose: C12H22O11 + 12O2 ------> 12CO2 + 11 H2O…

Q: A chemist dissolves a 1.497-g sample of a type of metal (an alloy of Sn, Pb, Sb, and Cu) in nitric…

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Q: What is the molar mass, in g/mol, of the hydrate compound with the proposed formula of CrCl3⋅3H2O

A: Since you have posted multiple questions, and these are not related to each other therefore as per…

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: lodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution…

A: The balanced reaction taking place is given as, => 2 NaI (aq) + Cl2 (g) -------> I2 (s) + 2…

Q: The aluminum in a 0.755 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: In order to evaluate concentration of any particular element available in a certain substance, the…

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

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Q: What mass of phosphorus pentachloride would be produced by the complete reaction of 15.2 g of P4?

A: The balanced chemical equation from the above question is  P4 + 10 Cl2 → 4 PCl5 Molar mass of P4  =…

Q: Aluminum carbide, Al4C3, is a yellow powder that reacts with water to produce aluminum hydroxide and…

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given: Weight of impure sample of limestone =4.138 g Weight of CO2 = 1.49 g We know that molar mass…

Q: For the following reaction, if I start this reaction with 305.5 g potassium bisulfite and an excess…

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Q: Consider the following compound: Sr3(PO4)2 *4H2O -Calculate the mass, in grams, of Sr present in…

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Q: If the decomposition of a sample of KCIO3 produces 3.29 O2 what was the mass (g) of the original…

A: The decomposition of KClO3 in presence of heat give product KCl and O2. Hence,the chemical reaction…

Q: |Solid silver oxide, Ag2O(s), decomposes at tempera- | tures in excess of 300 °C, yielding metallic…

A: The balanced decomposition reaction of silver oxide (Ag2O) at temperature in excess of 3000C can be…

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Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

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Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

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A: Given that : Mass of borax used = 120 g Volume of water used = 300 mL Volume of HCl used = 60 mL The…

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A: Given: percentage of carbon by mass = 95% Mass of copper(II) oxide = 1.0 ton To find: The mass of…

Q: a What is the maximum mass of ammonia that can be produced from a mixture of 1.00 x 10 g N2 and 5.60…

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Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO3 and…

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: We know that Molar mass of CO2=44g/mol Mass of CO2=2.14g Moles of CO2=MassMolar mass…

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Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

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Q: like many metals , aluminum reacts with a halogen to give a metal halide 2 Al(s) + 3 Br2(l) =…

A: 2Als      +       3Br2 l →…

Q: Sodium tripolyphosphate (or STPP), Na5P3010, is used in detergents. It is made by combining…

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Q: Acrylonitrile (C3 H3N) is the starting material for many synthetic carpets and fabrics. It is…

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Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

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Q: The aluminum in a 0.685 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: Mass percentage of a component can be calculated by using the formula :  mass %ge of the component…

Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

A: A question based on mole concept that is to be accomplished.

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: Table salt, NaCl(s), and sugar, C,,H„0(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced Combustion reaction of sugar:  C12H22O11 + 12O2 .....> 12CO2 + 11H2O Mass of sample =…

Q: 7) Define stoichiometry. A) the concept that 6.02 x 1023 atoms are in 1 mole of an element B) the…

A: A) the concept that 6.02 X 1023 atoms are in 1 mole of an element is known as Avogadro's concept…

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

A: Given, Mass percentage of acid, HEI = 20.09%  Atomic Mass: H: 1.00784 g/mol O: 15.999 g/mol El:…

Q: For the following reaction 145 g perchloric acid or allowed to react with 27.9 g of tetraphosphorus…

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Q: The average nicotine (C 10H 14N 2, molar mass 162.3 g/mol) content of a Camel cigarette is 1.93 mg.…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…