A 20.0-gram sample of impure NaClO3 produces 4.72 L of oxygen (STP). What is the percentage purity of the NaClO3? 2NaClO3(s) -> 2NaCl(s) + 3O2(g)     74.8 %     81.0 %     83.0 %     85.0 %     87.0 %

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: Silicon carbide, SiC, is used as an abrasive for many industrial processes. If you want to produce…

A: Given-> Weight of SiC = 1.00 kg = 1000 gm (1 kg= 1000g)

Q: KOH(s) + CO₂(g) → K₂CO₃(s) + H₂O(l) Calculate the mass in grams of KOH that will be required to…

A:

Q: How many grams of Silicon Dioxide would be needed to produce 2.664 kg of Calcium Sulfate?…

A: The given balanced equation for the reaction is : 2CaF2 + 2H2SO4 + SiO2  ⟶  2CaSO4  +  SiF4  +  2H2O…

Q: CaO

A:

Q: How many moles of lithium hydroxide would be required to produce 31.5 g of Li₂CO₃ in the following…

A:

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: What mass, in grams, of C2H2 is needed to form 132.9 g of CO2? Assume excess oxygen.    2C2H2(g) +…

A:

Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Calcium Chloride CaCl2 has a molar mass of 110 grams per mole. 11.0 grams of CaCl2 dissolved in 500…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What mass, in grams, of C2H2 is needed to form 210.4 g of CO2? Assume excess oxygen.    2C2H2(g) +…

A: Ans. 62.16 g C2H2 required to form 210

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: How many grams of Fe is needed to react with 35.0 g of sulfuric acid in the following reaction?…

A:

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: What mass, in grams, of C2H2 is needed to form 115.4 g of CO2? Assume excess oxygen. 2C2H2(g)…

A:

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO₂ and H₂O. When…

A: Combustion of 2.33 g of a hydrocarbon C2H5 in air produces 2.24 g CO, 3.53 g CO2 and 3.61 g H2O…

Q: The following reaction is known as the Haber Process. It is commonly used to make ammonia (NH3) for…

A:

Q: White phosphorus (P4) is used to produce phosphorus oxides, such as P4O10. How many kilograms of…

A:

Q: Use stoichiometry to convert moles of Na3PO4 to moles of Ca3(P04)2.   mass of Na3PO4 (sodium…

A: A numerical problem based on mole concept. Na3PO4 and Ca(PO4)2 are prescribed whose molar…

Q: Enter your answer in the provided box. One of the reactions that occurs in a blast furnace, in which…

A:

Q: What mass, in grams, of NO2 is needed to form 140.4 g of NO? Assume excess water.    3NO2(g) +…

A: The reaction given is  3 NO2(g) + H2O(l)  →  2 HNO3(aq) + NO(g) Given : mass of NO forming = 140.4 g…

Q: moles of lithium hydroxide would be required to produce 59.5 g of Li₂CO₃ in the following chemical…

A: The given chemical equation is as follows: 2LiOH + CO2 →Li2CO3 + H2O

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: For every one molecule of sodium azide that ignites, how many molecules of gas are formed?   2…

A: 2 NaN3(s)     ------------>  2 Na(s)     +    3 N2(g)

Q: What is the mass percent of chromium in Fe2(CrO4)3, which has a molar mass of 460 g/mol? 26% 34%…

A: The given compound is Fe2(CrO4)3  Given molar mass of this compound = 460 g/mol  Therefore, total…

Q: Please provide detailed solution and give explanation of the concept...

A:

Q: 6 NaOH + 2AL --> Na3 ALO3+3H2 what volume of hydrogen gas can be prepared from 5.40 grams of…

A: Given that : Mass of aluminum = 5.40 g The molar mass of Aluminum is 26.98 g/mol. The given balanced…

Q: How many moles of lithium hydroxide would be required to produce 82.5 g of Li₂CO₃ in the following…

A:

Q: The first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from…

A: Equilibrium constant is ratio of concentration of products to concentration of reactant.

Q: Part A Consider the following reaction. How many moles of oxygen are required to produce 2.33 moles…

A: Given is , Moles of water = 2.33 mol

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".