1. Manufacturers of headache remedies routinely claim that their brands are more potent pain relievers than the competitors. One way to compare brands is the number of molecules in each brand's dosage. Extra-strength Tylenol uses 600. mg acetaminophen (C3H9NO2). The extra strength version of Advil uses 400. mg of ibuprofen (C13H13O2). Find the number of molecules in each dosage.

Q: What is the difference between molecular compound and ionic compound? Cite some examples that can be…

A: The molecular compounds are those compounds which are formed by sharing of electrons of different or…

Q: 20. How many atoms does each prefix specify? mono-, di-, tri-, tetra-, penta-, hexa-.

A: An atom is the smallest unit in an element that has all the properties of that element. Molecules…

Q: (a) H2 _?_ x1025 H atoms  (b) Ca(NO3)2 _?_ x1023 Ca2+ ions  _?_ x1024 NO3- ions  (c) N2O2 _?_ x 1024…

A: The mole is actually contains Avogadro’s number of particles in elements or compounds. Avogadro’s…

Q: Hemoglobin (molar mass = 64,000 g/mol) is the major component of red blood cells that transports…

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Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: Which of the following are ionic compounds? a) calcium carbonate b) SO3 c) CoCl3 d) PCl3…

A: Ionic compounds are formed by the complete transfer of electrons from one metal atom to the other…

Q: 1. CO2 1. LAH acetoyl chloride Mg(s) Et,0 NaOH PBr3 Jones 2.H3O* 2. Hао AICI3 HO.

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Q: 4. How many molecules (or formula units) are in 4.59 x 10³ g Na³PO4 sample? a) 1.69 x 1023 Na₂PO4…

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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: How many molecules are in each sample?a. 6.5 g H2O b. 389 g CBr4 c. 22.1 g O2 d. 19.3 g C8H10

A: SOLUTION: Step 1: Hello. Since the question has multiple sub-parts, the first three parts are…

Q: The number of atoms in 0.4 moles of CO2 molecules and 0.6 moles of X are equal. Accordingly, which…

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Q: what is the emperical and molecular formula of these compound?  Given: molecular mass 70 g contains…

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Q: Write the empirical formula for each compound. a. Al2Cl6: b. K2Cr2O7: С. С2Н4: d. (NH2)2CNH: e.…

A: The simplest form where atoms ratio is present in whole numbers is called empirical formula.a.…

Q: Determine the number of moles (of molecules or formula units)in each sample.a. 55.98 g CF2Cl2…

A: a.

Q: 8.How many carbon atoms in 70 molecules of carbonic acid, H2CO3 are. A) 100 B) 4.8x1025 C) 70 D)…

A: Carbonic acid  have formula  H2CO3. Given Number of molecule of carbonic acid =70 Number of atom of…

Q: Carbon tetrachloride, CCI4, was widely used as a refrigerant and in fire extinguishers until it was…

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Q: Calculate the number of molecules in 90.3 g Fe

A: Given that, mass of Fe = 90.3 g No. of molecules (Atoms) in Fe = ?

Q: Calculate the number of oxygen atoms in 15.2 g of trinitrotoluene, C7H5(NO2)3(s).

A: The solution is given below -

Q: Zahara Noor wants to create a presentation of different molecules that helped change the world, but…

A: In this question naming of the mentioned molecule is needed which has the adverse effect on the…

Q: Isopentyl acetate (C7H14O2) is the compound responsible for the scent of bananas. a molecular model…

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Q: Calculate the number of carbon atoms in 12.8 mL of ethanol, C2H5OH , knowing that the density of…

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Q: b. a compound that is 63.5 % Ag, 8.2 % N, and 28.3 % O %3D 5. Aspartame is an artificial sweetener…

A: Determination of empirical formula from percent composition Calculate the number of moles of each…

Q: Aspartame is an artificial sweetener that that is 160 times sweeter than sucrose(table sugar) when…

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Q: A 21.8 g sample of water contains how many water molecules? O 8.23 x 1023 molecules O 7.29 x 1023…

A: Here we have to calculate number of molecules of 21.8 gram of water sample-

Q: How many carbon atoms are in 200 benzene (C6H6) molecules?

A:

Q: How many molecules (or formula units) are in each sample? a. 96.03 g CCl4 b. 64.82 kg NaHCO3 c.…

A: Given: mass of CCl4 = 96.03 g molar mass of CCl4 = 153.82 g   Calculation for number of moles of…

Q: High-density lipoprotein (HDL) cholesterol is the “good” cholesterol because adequate levels reduce…

A: HIGH DENSITY LIPOPROTEIN is a class of lipoproteins having high density. Its main function is to…

Q: How many molecules (or formula units) are in each sample?a. 85.26 g CCl4 b. 55.93 kg NaHCO3c. 119.78…

A: The ratio of the given mass to the molar mass gives the number of moles.

Q: 16. Which of these is not a molecular compound? 16. A. SO2 В. N-O C. ICla D. Al2S3 E. CH4

A:

Q: 2) Methanol (CH3OH) is a single-carbon alcohol that is commonly known as wood alcohol, because it…

A: A mole of an element or compound has Avogadro number of atoms or molecules in it. Each element or…

Q: nat is the mass in mg of one billion water molecules? a. 1.09 x 1016 mg b. 2.99 x 10-14 mg C. 2.99 x…

A: 1 mol of a molecule is equal to 6.023×1023 number of molecules. The number 6.023×1023 is called the…

Q: Question is attached

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

Q: Which molecular compound contains 7 atoms per molecule ?

A: In this question, a compound having 7 atoms per molecule has to be determined. In a chemical…

Q: For erythrosine, a food colornig, C20H6I4Na2O5, how many hydrogen atoms would be present in the 86.0…

A: The relation between moles, mass and molar mass can be written as:

Q: Which of the following species is NOT a compound? A. Glucose, C6H12O6 B. Water, H2O C. Methane gas,…

A: Molecule: It is a chemical substance formed by a single atom of the element or by the combination of…

Q: Which of the following is an ionic compound? A) Cl2O B) PCl5 C) SCl2 D)CH2O E) MgCl2

A: To identify the ionic compound use the concept of condition of ionic bonding. Combination of metal…

Q: Research suggests that a daily dose of 85 mg aspirin (molar mass = 180.17 g), may reduce a person's…

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Q: Classify each compound as ionic or molecular.a. CF2Cl2 b. CCl4 c. PtO2 d. SO3

A: A chemical compound consists of two or more different elements which are bonded with each other…

Q: Determine the empirical formula of each compound: C2H6, NO2, C6H12O6, C2H4O

A: In empirical formula the ratio of atoms in the compound should be lowest. Since in C2H6 the lowest…

Q: Calculate the number of molecules

A:

Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

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

Q: Calculate the number of molecules in 300.0 g Zn

A: No. of moles = mass/molar mass  molar mass of Zn = 65.38g/mol mass of Zn = 300.0g

Q: Which of the following is a molecular compound?

A: a) Nacl -sodium chloride ionic  Na+/Cl-  b) NaoH -sodium hydroxide ionic Na+ /OH -  C)Fe PO4-  Iron…

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: 5. Knowing that one mole of water has a mass of 18,02 grams, calculate the number of molecules in…

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Q: How many H2O molecules are there in a snowflake weighing 1 mg?

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Q: A packet of an artificial sweetener contains 40.0 mg of saccharin (C7H5NO3S), which has the…

A: First find the number of moles present in the sample. The number of moles can be found using the…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4, of mass 23.5 mg.

A: Given, Mass of cocaine hydrochloride, C17H22ClNO4 = 23.5 mg Number of moles is the total mass of…

Q: High-density lipoprotein (HDL) cholesterol is the "good" cholesterol because adequate levels reduce…

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Q: 1. How many MOLECULES of nitrogen monoside ace present in 4.22 grams of this compound ? molecules 2.…

A: Avogadro number: Given by Avogadro, According to him, 1 mole of substance contain 6.022×1023 number…

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.