A healthly person breathes out approximately 0.020 L of carbon dioxide in one breath. How many moles of carbon dioxide is in one breath? The molar mass of carbon dioxide is 44.01 g/mol.

Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

Q: 1- An unknown compound has the following chemical formula: P2Ox where x stands for a whole number.…

A: Chemical formulae provide a means of describing any chemical material that uses the symbol of the…

Q: 5. Benzene, C&H6, has a density of 0.787 g/mL. Burning 10.0 mL of benzene would produce how many…

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Q: The molecular weight of cholesterol is 386.65 g/mol. What is the mass of one molecule of…

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Q: A sealed chamber contains 7.50 g CH4 and 14.5 g O2. The mixture is ignited producing CO2 and H2O.…

A: According to the balanced chemical reaction shown as follows:

Q: What was the percent of potassium chlorate in the mixture

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

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Q: A water solution of sulfuric acid (H2SO4) has a density of 1.864 g/mL and is 73.0% H2SO4 by mass.…

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Q: Consider the reaction: C4H10(g)+O2(g)→CO2(g)+H2O(g)C4H10(g)+O2(g)→CO2(g)+H2O(g). Part A: How many…

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Q: Part 2: The Concept of Limiting Reactant 2. Water is formed by burning H2 (g) in the presence of O2…

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

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O:…

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Q: A major component of gasoline is octane. When octane is burned in air, it chemically reacts with…

A: The combustion reaction of octane i.e C8H18 can be written as, => C8H18 + O2 --------> CO2 +…

Q: Calculate the number of moles of chlorine present in 120  g g of chlorine gas.

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Q: Toluene is one compound used to increase the octane rating of gasoline. If 20.0 mL of toluene (d =…

A: The combustion reaction of toluene is represented as follows: C6H5CH3 + 9O2  → 7CO2 + 4H2O

Q: 1 D. 0.1000 THOT 7. In producing pure iron metal from its ore, iron(III) oxide and carbon (coke)…

A: Given following balanced Chemical equation -  Fe2O3(s) + 3C(s) -----> 2Fe(s) + 3CO(g)    Also…

Q: Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron…

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Q: In measuring the sample that is placed into a SCUBA diver's tank it has the following gases: 52.00 g…

A: A numerical problem based on percentage concentration, which is to be accomplished.

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Given information,      0.809 g of hydrobromic acid is mixed with 0.55 g of sodium hydroxide

Q: Ascorbic acid, or vitamin C (C6H8O6), is an essential vitamin. It cannot be stored by the body and…

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Q: A certain organic acid contains 26.68 % carbon, 2.24 % hydrogen, and 71.08% oxygen by mass. A 0.050…

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Q: What is the mass in grams of each quantity of vitamin D (molar mass 384.7 g/mol), which is needed…

A: Vitamin D is a very important vitamin which is needed for the formation and maintenance of healthy…

Q: The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen…

A: Theoretical yield is the maximum possible yield of the product in a chemical reaction. The limiting…

Q: An alloy is found to be 41.8% Zn and the rest is Cu. If 15.0 g of Cu is added to 45.0 g of This…

A: Mass of the alloy = 45g% of copper in the alloy = (100-41.8) = 58.2%% of zinc in the alloy =…

Q: Consider the hypothetical reaction 8A2B3(s) + 3X4(g) → 4A4X3(s) + 12B2(g) When 15.0 g of A2B3 (MM =…

A: Considering the given mass and molar mass of A2B3, its numbers of moles is calculated as follows,

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: Lead ions can be precipitated from solution with KCl according to the reaction: Pb²+ (aq) + 2KCl(aq)…

A: Solution :-“Since you have posted multiple questions, we will provide the solution only to the…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

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Q: Grease fires can be extinguished by applying baking soda (sodium hydrogen carbonate), which…

A: The balanced equation for the decomposition of NaHCO3 (sodium hydrogen carbonate) is given as:…

Q: A cereal contains 11.0 grams of sucrose (C₁₂H₂₂O₁₁) per 60.0 grams of cereal…

A: The objective of the question is to find out the mass of cereal that must be consumed to intake a…

Q: A sample of dry solid waste has the following composition : 531 g carbon (C), 133 g hydrogen (H),…

A: The answer is given below

Q: Suppose 90.0 g of Iron (III) chloride reacts with 17g of water? What is the limiting reagent? How…

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Q: The density of carbon tetrachloride is 1.59 g/mL. How many moles are present in 50.0 mL of carbon…

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Q: A cereal contains 11.0 grams of sucrose (C12H22O11) per 60.0 grams of cereal. What mass in grams of…

A: Mass of sucrose  per 60 g of cereal = 11.0 gNumber of moles of sucrose consumed = 0.0424 molesMass…

Q: Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain…

A: First calculate the mass of water lost from the sample and then calculate the mass of water that…

Q: 10g of nitrogen is reacted with 5.0g of hydrogen to produce ammonia according to the chemical…

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Q: 6. A piece of iron wire has a diameter of 0.485 mm. If iron has a density of 7.86 g/cc, how long (in…

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Q: 22.0 g of CO​​2 gas and 9.01 g of H​​2O gas are formed from combustion of an unknown hydrocarbon…

A: The compound contains only Carbon and Hydrogen atoms. The amount of Carbon and Hydrogen is…

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: Silicon tetrachloride (SiCl4 ) can be prepared by heating Si in chlorine gas:  Si(s) + 2Cl2(g) ->…

A: Given :-  Si(s) + 2Cl2(g) → SiCl4(l)  number of moles of SiCl4(l) = 0.507 mol  MW SiCl4 = 169.9…

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.