Q8 -Boric acid, H3BO3, is a mild antiseptic and is often used as an eyewash. A sample contains 0.543 mol H3BO3. What is the mass of boric acid in the sample? Q9- Which contains more carbon, 6.01 g of glucose, C6H12O6, or 5.85 g of ethanol, C2H6O?

Q: Methyl butyrate is a compound that is partially responsible for the flavor of apples. It consists of…

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Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

Q: A) What is the formula of magnesium melonite dihydrate?  B) What is the mass % of melon in copper…

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Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given,

Q: The molecular formula of Aspirin is C9H;O4. How many Aspirin molecules are there in a table that…

A: Given that:  Mass of aspirin = 200mg = 200mg×1g/1000mg = 0.2g Molar mass of C9H8O4 =…

Q: A molecular compound is found to consist of 26.0% nitrogen and 74.0% oxygen. If the molecule…

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Q: An organic compound has a molecular mass of 329.0 amu and contains 72.95% carbon by mass. How many…

A: The ratio of mass of particular element to the total mass of compound multiply by 100 is known as…

Q: 8

A: Question 8. Given: To Solve: Molar mass of ammonium sulfate=? Solution: Molar mass of N=14Molar…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in 1.50…

A: The value is given as follows:

Q: chemist needs to produce 100 grams of gallium chloride, when gallium reacts with hydrochloric acid…

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Q: b. CFBRO, molar mass is 509.6 g/mol C. C2OH4, molar mass is 88.1 g/mol

A: Molecular formula = (empirical formula)n  n = molar mass/empirical formula mass

Q: Zinc Oxide decomposes into zinc and oxygen. If 52.1 g of zinc oxide decomposes to form 41.8 g of…

A: Given,52.1 g of zinc oxide, 41.8 g of zinc.The balanced chemical reaction of decomposition of zinc…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in…

A: The number of moles of a substance is the ratio of its given mass by molar mass of the substance. It…

Q: A well-known reagent in analytical chemistry, dimethylglyoxime, has the empirical formula C2HANO. It…

A: The atomic massses are as follows : C: 12 g/mol H: 1 g/mol N: 14 g/mol O: 16 g/mol B : 11 g/mol

Q: How many bromine atoms are present in 32.5 g of CH2Br2?

A: Since there are multiple questions, we are authorized to answer only the first one. If you want the…

Q: 1. An organic compound is analyzed and found to be carbon 51.90%, hydrogen 9.80%, and chlorine…

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

Q: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

A: a) 1 molecule of N2O contains 2 nitrogen atoms, Hence, 5.30 ×1022 N N2O molecules will contain…

Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 135 mL of…

A: In order to calculate number of molecules of ethanol, first we have to calculate the number of moles…

Q: 42. Ethanol (C2H50H), a domestically produced fuel source, is often blended with gasoline. A sample…

A: Given mass of Ethanol (C2H5OH) = 45.6g To determine the number of carbon,hydrogen and oxygen atoms…

Q: Butaneedione, a compound of butter and body odor, has a cheesy smell. Elemental analysis of…

A: The molecular formula(M.F) is the whole number multiple of an empirical formula(E.F)- M.F=n*E.F…

Q: 1. What is the molecular formula if the empirical formula is C2Hs and the molecular molar mass is…

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Q: 5A. Sorbitol, used as a sweetener in some sugar-free foods, has a molecular mass of 182 u and a mass…

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Q: The empirical formula for Antifreeze is CH,O. What would be the molecular formula if the mass of…

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Q: 1. 2 moles of Ar atoms contain how many atoms?           A.   1        B.   1.204 x 1024…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 28) Determine the mass of the following compound: 0.0146 mol KOH A) 56.11 g B) 0.819 g C) 8.19 g 29)…

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Q: A sugar crystal contains approximately 1.8x1017 sucrose (C12H22O11) molecules. What is its mass in…

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Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

Q: Nicotine, a poisonous compound found in tobacco leaves, is 74.0 % C, 8.65 % H, and 17.35% N. Its…

A: Given: Percentage of C in nicotine = 74.0 % Percentage of H in nicotine = 8.65 % Percentage of N in…

Q: How many atoms are there in 75 molecules of acetic acid, CH3CO2H? A compound contains, by mass,…

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Q: Question is attached

A: It is given that the molecular formula of the artificial sweetener i.e. aspartame is C14H18N2O5, To…

Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: compound has the composition of 66.6% Carbon, 11.2% Hydrogen, and 22.2% Oxygen, by mass. If the…

A: Given is, 66.6% Carbon, 11.2% Hydrogen, and 22.2% Oxygen Molar mass= 144.2 g/mol

Q: A mixture consisting of 11.6 g of calcium fluoride, CaF2, and 10.0 g of sulfuric acid, H2 SO4, is…

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Q: Q9. Nitrogen is a highly reactive element and has many forms of oxides and nitrogen content of these…

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Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: Rusting Nails: Nails are made of the element iron. Iron has the atomic mass 55.8 g/mol. Nails are…

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Q: 1. A prospector panning for gold in a river collects 15.00 g of pure gold. How many Au atoms are in…

A: According to mole concept, 1. 1 mole of a substance = molar mass of the substance.Eg- 1 mole ammonia…

Q: 4 NH3 (g) + 7 O2 (g) → 4 NO2 (g) + 6 H2O (g) The combustion of 210 g of ammonia consumes __________…

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Q: Lighters typically contain butane (C4H10), which has a molar mass of 58.12 g/mol. Consider that…

A: Hydrocarbon  Molar mass  CH4   12 + 4 = 16 C2H6 12×2 + 6 = 30  C3H8…

Q: A substance, AzB, has the composition by mass of 60% A and 40%B. What is the composition of AB2 by…

A: Find solution below

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Phosphoric acid is a colorless, syrupy liquid used in detergents, fertilizers and carbonated…

A: Phosphoric acid symbol is H3PO4

Q: A compound has the composition of 54.53% Carbon, 9.15% Hydrogen, and 36.32% Oxygen, by mass. If the…

A: Empirical formula is the formula in which elements are present in the simplest ratio. Example:…

Q: One of the most widespread environmental carcinogens (cancer-causing agents) is benzo[a]pyrene…

A: Given, C present in 95.21% H present in 4.79%.  At first we need to find the empirical formula and…

Q: Ibuprofen, the anti inflamatory ingredient in Advil has the formula C13H18O2 A) How many molecules…

A: We have to predict the molecules  , number of H atoms, mole of ibuprofen, mass of ibuprofen.

Q: For many years chloroform (CHC]3) was used as an inhalation anesthetic in spite of the fact that it…

A: The mass percentage of a component in a solution is obtained by using the formula: Mass percent=Mass…

Q: Find the empirical formula for a compound that is 34.59% NA, 23.31% P, and 42.10% O by mass?  2:…

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Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

A: In order to calculate number of molecules of ethanol, first we have to calculate the number of moles…

Q: Enter your answer in the provided box. For many years the extraction of gold-that is, the separation…

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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.