Calculate the number of carbon atoms in 3.681 gallons of octane, Cg H₁g (1 gallon = 3.785 L; density 18 number of carbon atoms: = 0.7025 g/mL). atoms

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: Reaction Type:_ At completion of reactions: Grams of hydrogen peroxide Grams of water Grams of…

A: Decomposition reactions are the reactions in which chemical species breaks into simpler molecules.

Q: 11. For each of the following balanced chemical equations, calculate how many moles of product(s)…

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

Q: 5. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

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Q: (a) Calculate the molar mass of ammonium nitrate, NH4NO3. (b) What is the mass percent of nitrogen…

A: (a) Molar mass of a molecule = sum of atomic masses of all the constituent elements      Molar mass…

Q: 13. Р-(s) P4(s) + _Cl2(g) → _PCI5(g) AH°, = -1500 kJ balance & classify: The reaction is _thermic,…

A: An exothermic reaction involves the release of heat and is represented by a negative sign. Limiting…

Q: Seawater is approximately 4.0% by mass dissolved ions, 85% of which are from NaCl. (a) Find the mass…

A: Solution- (a).The mass of ions is 4.0 % and 100% of ions contain 85% NaCl. So, the mass % of NaCl is…

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: City water supplies are fluoridated by adding sodium fluoride to the water. If you live in a city of…

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Q: A 13.2010g sample of hydrated zinc sulfate, ZnSO4 • xH2O), was strongly heated until no further…

A: For the reaction., ZnSO4 • xH2O ----> ZnSO4 + xH2O  Given Mass of ZnSO4 • xH2O = 13.2010 g Mass…

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Mass of crucible = 26.639 g Mass of crucible + mass of Na2SO4·xH2O = 27.085 g Therefore mass of…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3), which has a molar mass of 138.12 g/mol, and…

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Q: "A liquid fuel mixture contains 30.25% hexane (C6H14), 17.10% heptane (C7H16), and the rest octane…

A: Mass of fuel mixture = 15 kgHexane = 30.25%Heptane = 17.10%Octane = 100 - (30.25+17.10)…

Q: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

A: Percentage yield of a compound can be calculated using following formula: Percentage yield =…

Q: The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane…

A: Combustion reaction of octane 2C8H18 + 25O2 → 16CO2 + 18H2O From this Balanced chemical equation we…

Q: Phosphoric acid (H3PO4) can be prepared from phosphorous triiodide (PI3) according to the reaction:…

A: Given: Mass of PI3 = 15 g Molar mass of PI3 = 411.7 g/mol Volume of H2O = 25 mL Molar mass of H2O =…

Q: How many C atoms are present in a 7.57 ng sample of nitrobenzene, C6H5NO₂? Note: 1 ng is one…

A: Given mass of nitrobenzene = 7.57 ngRequired no. Of C-atoms in 7.57ng of nitrobenzene = ? As 1ng =…

Q: Mercury (Hg) is typically obtained from the ore Cinnabar, mercury (II) sulfide (HgS), according to…

A: Given that : Mercury (Hg) is typically obtained from the ore Cinnabar, mercury (II) sulfide…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

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Q: 5. Calculate the mass of oxygen required to react with 1.0 g of butane C4H10. _C4H10(g) +______O2(g)…

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Q: Calculate the number of water, X,  of crystalization in an unknown sample, having a molar mass of…

A: Some ionic compound (salt) contains a water molecule in their crystal lattice structure. The water…

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Since on heating the compound, the mass of water will be lost as it will get vaporised  Hence the…

Q: 1. Plop, plop. Fizz, fizz. Alka-Seltzer¹ contains sodium bicarbonate (NaHCO3) and citric acid…

A: Given -> Reactant -> NaHCO3 , H3C6H5O7  Product -> Na3C6H5O7 , H2O , CO2

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

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Q: If 7 moles of hydrogen gas are mixed with 5 moles of bromine gas, how many moles of each species…

A: We can consider the balanced equation to solve the problem.  The balanced equation is : H2 + Br 2…

Q: A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate…

A: Volume of water = 100.0mL  Volume of dilute nitric acid = 10.0mL Total volume = 110 mL  Density of…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: Consider the following chemical reaction: 2CH3OH(1) + 302(g) → 2CO2(g) + 4H20(1) Calculate the…

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Q: A 4-M sample of hydrochloric acid, HCl, has a density of 1.42 g/ml. What is the mass % (wt/wt) of…

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Q: Complete combustion of 4.5892 a particular compound that contains only carbon, hydrogen and oxygen…

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Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane…

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Q: Home-Grown Example: Calculation of Mass-Related Concentrations (a) A solution is made by dissolving…

A: Given,(a) mass of sucrose ( C12H22O11 ) = 1.675 mgmass of water = 0.01091 g(b) mass of Fe2+ = 2.443…

Q: At the standard conditions, 22 g carbon dioxide (CO2) takes up a volume of ________ L  (Hint: atomic…

A: Given data,Mass of CO2=22gAtomic weight of C=12g/molAtomic weight of O=16g/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".