Given the following equation: 2 KCIO3 ---> 2 KCI + 3 O2 How many moles of oxygen gas (02) can be produced by letting 12.00 moles of KCIO3 react? Paragraph BI + v ... Lato (Recom... v 19px 123

Q: Which of the following is equal to exactly Avogadro's numbe atoms? Explain your choice in your…

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Q: 1. Explain how KCl, HBr, HCN, and C12H22O11 behave differently at the particle level when they are…

A: a) When KCl is dissolved in water, it dissociates into K+ and Cl– ions. KCl acts as a salt in water.…

Q: The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20 x…

A: The rate constant at 760 K can be calculated as follows: K2=0.693t1/2=0.69329 min=20.097 min-1.

Q: Pentaborane BgHg(s) burns vigorously in 02 to give B203ls) and H2O). Calculate AHoxn for the…

A: Given: ∆Hof[B2O3(s)] = -1273.5 kJ/mol ∆Hof[B5O9(s)] = 73.2 kJ/mol ∆Hof[H2O(l)] = -285.8 kJ/mol moles…

Q: Please show work

A: Term symbol can be determined using the given formula,

Q: A chemist prepares a solution of magnesium bromide (MgBr.) by measuring out 87. mg of MgBr, into a…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: For the first-order reaction 2N205 2N204 + 02 at a particular temperature, the half-life of N205 is…

A: The first-order reaction is given as- 2 N2O5 →2 N2O4 + O2 the half-life of N2O5 = 0.90 hr…

Q: A 0.179 g sample of an unknown halogen occupies 109 mL at 398 K and 1.41 atm. What is the identity…

A: According to Ideal gas equation  PV = nRT where, n is the number of moles of sample and, n = mass of…

Q: elemental phosphörus in a two step process. In the first step, phosphorus and oxygen react to form…

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Q: Use ¹C NMR to determine the substitution pattern (1,2-, 1,3- or 1,4) on the benzene of isopropyl…

A: 13C-NMR is used to determine the number of sets of non-equivalent carbons in the molecule.

Q: How many moles of C are formed upon complete reaction of 2 mol of B according to the generic…

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Q: please show work

A: Mass of alum hydrate before heating = (mass of beaker and watch glass + mass of alum hydrate )…

Q: How many moles are in 15 grams of lithium? How many grams are in 2.4 moles of sulfur? How many moles…

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: The following equilibria were attained at 298 K: Ag*(ag) + CI (ag) AgCl(s) K.= 5.6 x 10° Ag (ag) +…

A: The equilibria given at 298 K are Ag+ (aq) + Cl− (aq) ⇌ AgCl (s), Kc = 5.6×109 Ag+ (aq) + 2 NH3 (aq)…

Q: Calculate the heat of solution for sodium hydroxide based on the following information: Show…

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Q: 20. A gas mixture is made by placing 6.00 grams each of Ne and Ar in a 10.0 L rigid container at…

A: (a) The partial pressure of Ne Molar mass of Ne = 20.2 g/mol mass given of Ne= 6.00 g number of mol…

Q: Please show work

A: Empirical formula represents the simple whole number ratio of constituent atoms present in the…

Q: Consider the following oxidation-reduction reaction: 3 H2SO3(aq) + 3 H20(1) + 2 Au3+(aq) → 3…

A: Generally redox reaction are the mixture of two types of reactions oxidation and reduction…

Q: At 25°C, the standard enthalpy of formation of anhydrous sodium carbonate is -1130.9 kJ/mol, whereas…

A: The standard enthalpy of formation data is given below Na2CO3 s +  H2Ol   →…

Q: A certain substance X has a normal boiling point of 106.7 °C and a molal boiling point elevation…

A: Normal boiling point, Tb° = 106.7°C Molal Boiling point elevation constant, Kb = 0.70°C Kg mol-1…

Q: To what volume will a 2.33 L sample of gas expand if it is heated from 30.0°C to 300.0°C?

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Q: 2. Annotate the following spectrum by highlighting/circling at least two important signals that are…

A: This graph clearly indicates the absence of COOH group :- because a broad signal from around 2700cm-…

Q: 22.00 mLs of 0.500M KOH is reacted with 37.00mLs of an unknown HNO3 solution. What is the molarity…

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Q: You prepare a solution of calcium bromide by dissolving 131.6g of CaBr, in 93mL of distilled water.…

A: The molarity of a solution is defined as the number of moles of the solute dissolved per liter of…

Q: show

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Q: Draw out structure of the ester that would undergo condensation to give the following product beta-…

A: Applying concept of organic synthesis.

Q: The specific heat capacity of liquid mercury is 0.14 J/g-°C. How many joules of heat are needed to…

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Q: At 25°C the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10-…

A: The concentration of the reactant at time 't' is given by,     [A]t = [A]oe-kt where, [A]o is the…

Q: 3. A 34.0 g piece of metal is heated to 92.0°C then placed in a beaker of water containing 22.0 g of…

A: Mass of metal = 34 g Mass of water = 22 g initial temperature of water = 190C Final temperature of…

Q: What is the freezing point of a solution containing 407 g ethylene glycol in 2,098 g water. Molar…

A: Freezing point depression = Kf x molality Molality = Number of moles of solute/Mass of solvent in Kg…

Q: Given the following reaction: Mg(s) + 2 HCI(aq) → MgCl2(aq) + H2(g) 13.4g of magnesium solid is…

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Q: The isomerization of cyclopropane to form propene is a first-order reaction. H,C-CH2 H,C-CH=CH; CH;…

A: Let our reactant cyclopropane be represented by 'A' Given Reaction is First Order Initial amount of…

Q: 7) Your lab instructor asks you to prepare 1.0 L of 0.10M buffer at pH = 5.00 exactly. If only the…

A: Given - Expected pH of buffer = 5.00 Buffer solution - 1.0 L of 0.10 M Ka values Choloracetic acid…

Q: please show work

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Show work please

A: Given that : We have to calculate the number of atoms contained in 354 g of iron. We know that : 1…

Q: Part 2 Redox reaction Experimental Theoretical Cell potential Cell potential a. Zn(0.1M)-Cu(0.1M)…

A: We are given information about variables in Nernst equation and concentration of ions.  We need to…

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".