In the recipe for mayonnaise, the phospholipids in the egg yolk act as emulsifiers. If you assume that one egg yolk weighs 10g, that about 33% of this is fat, and that the majority of the fat is phospholipids. If you take the average molecular weight of a phospholipid to be 800 g/mol. How many phospholipid molecules are there in one egg yolk? Give your answer in molecules, but without entering the unit. Enter the number in scientific notation with the form #.#e##

Q: Determine the theoretical mass of aspirin (acetyl salicylic acid) when using 3.682 grams of…

A: Salicylic acid reacts with acetic anhydride to give aspirin or acetylsalicylic acid and acetic acid.…

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: Give the following generic chemical reaction, determine the moles of B2 needed to react with 1.25 x…

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Q: ment cofrecly explains and 10 L of carbon dioxide at constant temperature and pressure? 4H29) +…

A: The mole concept is used to explain and solve such problems. It relates the concentration of the…

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: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

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Q: For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 9.5 moles of…

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Q: What is the percentage of calcium carbonate present in the original mixture?

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Q: For the reaction C+ 2H₂ → CH4, how many moles of hydrogen are needed to make 155.6 grams of methane,…

A: The number of moles of a compound is determined by the balanced chemical reaction. The mass of a…

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

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Q: Each 100 ml of an antacid contains 3.7 g of aluminum hydroxide (Al (OH) 3), 11.66 g of magnesium…

A: To determine moles of any substance present  we use following formula    moles = massmolar mass

Q: In this lab you are synthesizing acetylsalicylic acid (ASA) from salicylic acid using acetic…

A: Given, mass of salicylic acid (C7H6O3) = 1.15 g Excess reactant: acetic anhydride (C4H6O3)…

Q: Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one…

A: no of moles=mass/molar mass General Empirical formula  Cx H 2x Oy

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

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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: Hydrates take the form: compound·nH2O. An unknown hydrate has a molar mass of 446 g/mol.  If the…

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Q: 1. Anhydrous (doesn't contain water) sodium sulfate, Na2SO4, absorbs water vapor and is converted to…

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Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: The products of the complete combustion of octane, C8H18, are carbon dioxide and water. Write a…

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Q: b. How many moles of gaseous SO2 must react if 2.46 kJ of heat are absorbed? 4.377*E-3 mol c. What…

A: The balanced reaction is – 2 SO2 g+ 2H2Ol →2H2Sg + 3O2g

Q: (b) What mass of Na,AlO, can be formed from 165.0 g of NaOH?

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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: Alcoholic fermentation converts glucose (C6H12O6) into ethanol (C2H5OH) and carbon dioxide (CO2).…

A: Alcoholic fermentation of Glucose gives Ethanol and Carbon dioxide. It can be written in chemical…

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

A:

Q: - ] 3 Consider the reaction 1205(g) + 5 CO(g) → 5CO2(g) + 2(g) 80.0 grams of iodine pentoxide, 1205…

A: Number of moles is calculated by dividing the given mass with molecular mass. In the given question…

Q: In the combustion of butanol (CH 00), what mass (in g) of butanol must react to produce 55.4 g of…

A: To determine the mass of butanol (C4H10O) that must react to produce 55.4 g of product (water and…

Q: of Br2, in grams, is required for complete reaction with 9.56 g of A g Br2 of white, solid Al,Bre is…

A: Given,  Balanced chemical reaction,  2Al + 3Br2 ----> Al2Br3 Mass of Al = 9.56 g Molar mass of Al…

Q: During the decomposition of KClO3, 4.14 grams of oxygen gas are created. How many moles of KClO3…

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Q: Aspirin can be prepared from salicylic acid (C,H,O3 ), which has a molar mass of 138.12 g/mol, and…

A: Given: Mass of salicylic acid=3.01 g Moles of salicylic acid= 3.01138.12 g/mol=0.0218 mol The…

Q: A major component of honey is fructose (C6H12O6) with a molar mass of 180.16 g/mol. A tablespoon…

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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: 2NaClO, --> 2NaCI + 30, Reactants combine into a large one Reactant breaks apart into smaller…

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Q: what is the empirical formula for a compound that is 41.8% N, 24.7% C, 31.4% O, and 2.1% H by mass?…

A: Percentage by mass: 41.8% N 24.7% C 31.4% O 2.1% H  The molar mass of the compound = 100.06 g mol-1…

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".