How many moles of hydrogen gas will be produced when 12g of Mg will react completely with excess of an acid according to the following reaction? 2Mg+2HCl= 2MgCl2+H2 a. 1.5 mol b. 1.0 mol c. 0.25 mol d. 0.50 mol

Q: When the stack gas undergoes incomplete combustion, the theoretical oxygen content changes. true or…

A: Incomplete combustion happens when there is not sufficient oxygen to allow the gas to react…

Q: How many moles of potassium oxide (K,O) will be formed when 1.52 moles of potassium rea vith oxygen…

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Q: 1. If you increase the volume of a certain amount of gas while holding its pressure constant,…

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Q: Automobile air bags employ a chemical reaction involving the rapid decomposition of sodium azide…

A: 2NaN3 →2Na(s)+3N2(g) Molar Mass of NaN3= 65.021 g/mol Volume of gas at STP= 22.4L Standard…

Q: A student finds a container of potassium metal containing an unknown amount of the reactive metal.…

A: The reaction between potassium metal and water is written below. 2K + 2H2O → 2KOH + H2 According to…

Q: Use the following reaction to complete the statement: 2 C4H10 + 13 O2 -> 8 CO2 10 H2O 4 moles of…

A: Given that, 4 mole of butane react. Require= no. of moles of oxygen

Q: Use the equation below to calculate the following. a. Balance the reaction. ___ K2CO3 (aq) + ___…

A: A balanced equation is the equation in which the number of atoms of each  element are equal at both…

Q: (CxHy) is a hydrocarbon gas sample which  has a weight of 0.5653g. This sample is burned completely…

A: Given the weight of the hydrocarbon(CxHy) sample = 0.5653 g The C present in a hydrocarbon(CxHy) is…

Q: Use stoichiometry to calculate the grams of oxygen gas produced from 750. mL of a 2.00 M solution of…

A: For H2O2 : Volume = 750 mL = 0.750 L Molarity = 2.00 M = 2 mol L-1

Q: How many grams of CaS are produced from 2.500 molesof CaO?       4 HgS  + 4 CaO--->4Hg + 3CaS +…

A: The given reaction is: Now, from reaction stoichiometry it is clear that 4 mol of CaO produces 3…

Q: How many grams of nitrogen gas are neeeded to produce 35.25g of ammonia are produced? 27.50g…

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Q: One of your friends told you that they were able to determine the pressure of water produced from…

A: The balanced reaction given is, => 2 C2H6 (g) + 7 O2 (g) → 6 H2O (l) + 4 CO2 (g)  The steps given…

Q: Please help me, and double and triple check your answers previous tutors got questions wrong

A: Given: Mass of N2O5 = 64.8 g Molar mass of N2O5 = 108.01 g/mol Molar mass of NO2 = 46.005 g/mol…

Q: Sulfur and oxygen combine to produce sulfur trioxide. i) Write and balance the equation  ii)…

A: Sulfur : S Oxygen : O2  Sulfur trioxide : SO3

Q: How many moles of water are produced when 1.44 moles of oxygen gas are produced? 2H2O2 (l) -->  O2…

A: Given equation is, 2H2O2 (l) -->  O2 (g) + 2H2O (l)  Moles of oxygen= 1.44 mol

Q: Consider the diagram on the left: 1.00 g H2(g) is maintained at 1 atm pressure in a cylinder closed…

A: Which sketch is best described the mixture obtained when 1.00 g He is added ?

Q: How many moles of Zn would be required to produce 4 moles of hydrogen gas using the following…

A: The balanced chemical equation is given below.

Q: How many grams of NBR3 can be made from 2.22 × 102 moles of Br2 ? N2 + 3 Br2 2 NBr3 + 44.0 kJ

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Q: Two H2 molecules can react with one O2 molecule to produce two H2 O molecules. How many moles of…

A: Concept introduction: Number of moles of substance is equal to the ratio of mass of the substance to…

Q: How many moles of oxygen gas are required when 0.52 moles of carbon dioxide are produced? 2C8H18…

A: Given balanced equation: 2C8H18 (l) + 25O2 (g) --> 16CO2 (g) + 18H2O (g)

Q: MnOg + H2O2 Mn2 + O2 The reaction takes place in an acidic environment. According to this, how many…

A: Given: The given equation is, MnO4+H2O2→Mn+2+O2 Solution is 0.2 M 800 mL In acidic environment, how…

Q: Determine the theoretical yield and the percent yield if 21.8 g of K2CO 3 is produced from reacting…

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Q: How many moles of zinc are required to react with four moles of iodine

A: Given moles of iodine = 4 mol

Q: Determine the theoretical yield and the percent yield if 21.8 g of K2CO3 is produced from reacting…

A: Given that -  Mass of potassium carbonate, K2CO3 = 21.8 g  Mass of potassium super oxide , KO2 =…

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3(g) + 7 O2(g) à…

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Q: 18.35 g of magnesium are added to 1.69 mol hydrochloric acid. Which is the excess reactant and by…

A: Magnesium reacts with hydrochloric acid to form magnesium chloride. The equation for the balanced…

Q: 27) The cycle of copper reactions illustrates important principles of chemical reactions. The cycle…

A: Given,Mass of copper is 2.51 g

Q: Consider the following reaction: BaCl2 (aq) + NazSO4 (aq) Nacl (aq) BasO4 (s) + 2 Suppose that 2.979…

A: Mol = Molarity × Vol(L) Molarity( Concentration) = mol/ Vol(L)

Q: 2NO (g) + O2 (g) -> 2NO 2 (g) According to the information presented, 4 moles of nitrogen monoxide…

A: In the given equation two nitrogen monoxide molecules are converting into two nitrogen dioxide…

Q: A reaction vessel contains14.1 g of CO and 14.1g of O2. How many grams of CO2 could be produced…

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Q: piece of copper with a mass of 6 g is placed in a solution of silver (I) nitrate containing excess…

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Q: In the equation - 2HgO(s) --> 2Hg(l) + O2(g) How many moles of HgO are needed to produce 2 moles of…

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Q: 158 g of aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide.…

A: Applying concept of limiting reagent and mole concept.

Q: Assume 81% of yield for each step of a 6-step synthesis. Calculate the overall yield

A: Given, Reaction is multistep as 6 Steps  % yield = 81 %  Over all yield = ?

Q: If 38.0 moles of NOBr2 decompose how many moles of O2 form ?

A: Number of moles of O2 form depends on the number of O2 formed per mol of NOBr2 decomposition.

Q: Consider the following reaction at STP: 2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(g) How many moles of S…

A: First of all find the limiting reagent ( A reactant which consumes firstly in the reaction and then…

Q: The nitrogen content of organic compounds can be determined by the Dumas method. The compound in…

A: Given that:Total vapor pressure = 726 torrVapor pressure of water = 23.8 torrVolume of N2 = 31.8…

Q: The perfect gas equation for 12 g of 2He is

A: The ideal/perfect gas equation is  PV=nRT where n = number of mole of gas Given data mass of Helium…

Q: How many grams of O2(g)O2⁡(g) are needed to completely burn 80.8 g C3H8(g)?

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Q: 1. Company vehicle records indicate that 140 g of sodium azide was placed in the air bag during…

A: We are given 140 g of sodium azide. We have to find the number of moles of nitrogen gas produced by…

Q: What mass of octane is consumed by the reaction of 2.13g  of oxygen gas

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Q: how many moles of  O2 will react with 15.5 moles of Fe?

A: Given: The number of moles of Fe is 15.5 mol.

Q: how many grams of oxygen gas are needed to completely react with 30.0 grams of calcium metal

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Q: Iodine reacts with antimony in the following a manner: 2Sb(s) + 3I2(s) -> 2SbI3(s) In an…

A: Antimony reacts with iodine to form antimony iodide. The equation for the balanced chemical reaction…

Q: temperature

A: According to the chemical reaction equation,  1mol of N2 React with = 3mol of H2  Then,  0.210mol of…

Q: How many moles of K2S are consumed when 14.0 g of KBr is formed in the following equation? FeBr2 +…

A: Calculate the number of moles of KBr.

Q: How many grams of oxygen are required to completely burn 5.90g of C3H8 in the following unbalanced…

A: A balanced reaction is one that has same number of atoms of each element on reactants and products.…

Q: 11. Use the equation below to calculate the following. a. Balance the reaction. 2 KCH;O2 (aq) + H20…

A: Balanced chemical equation: Balanced chemical equation can be defined as reaction in which number of…

Q: Consider the reaction: 2KCIO3 2KCI+302 1. How many moles of KCIO3 are required to produce 22.8 moles…

A: The given data : a) The number of the moles of Oxygen gas = 22.8 moles b) The moles of KClO3 = 18.8…

Q: How many moles of O2 will form when 1.818 moles of CO2 react with 3.583 moles ofKO2?

A: According to the given chemical equation, the number of moles of KO2 (s) needed to react completely…

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".