How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of ethanol? The density of ethanol is 0.789 g/cm3.

Q: A student is running an experiment in which 51.7 grams of BeSO4 is needed, but the only jar of…

A: In the lab the beryllium sulfate present at beryllium sulfate tetrahydrate. The mass of BeSO4 needed…

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

A:

Q: Consider the chemical formula for one molecule of methane, CH4. If instead of one molecule we had 10…

A: According to chemical formula of methane ( CH4 ) , it's very clear each molecule of methane has one…

Q: How many molecules of glucose (C6H12O6) are present in 1.52 grams of glucose (C6H12O6)? The…

A:

Q: 7. How many molecules are there in 24.0 g of ethylene glycol, HO(CH)OH?

A: The number of moles is defined as the ratio of the mass of a substance to its molar mass. Number of…

Q: Acetaminophen, a common aspirin substitute,has the formula C 8 H 9 N O 2 . Determine the numberof…

A: Given  Molecular formula of acetaminophen = C8H9NO2  Molar mass of C8H9NO2 = (12 x 8 ) + ( 1 x 9 ) +…

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: Calculate the number of atoms of glucose in 2.116 x 10-3 grams of glucose, C6H12O6. Hint: molar mass…

A: We have to use basic mole conversions to find this 1mole = 6.022 x 1023 atoms Molar mass of glucose…

Q: Aspartame, C14H18N2O5, a low-calorie sweetener, is about 200 times sweeter than sugar. How many…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: 3.112 The carat is the unit of mass used by jewelers. One caratis exactly 200 mg. How many carbon…

A: One carat is equal to 200 mg. the amount of diamond is 2 carat. The mass of diamond from carat to g…

Q: What is the molar mass of the following compounds?     N2H4                                     b.…

A: The molar mass of a substance can be defined as the mass of that substance present in one mole. It…

Q: 1. Convert 25.2 g into mg. (1000 mg = 1 g) 2. Convert 3 x 105 g into kg. (1000 g = 1 kg) 3. What is…

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

Q: How many grams of hydrogen are there in 55.1 g of CH3(CH2)4OH?

A: Given: Mass of CH3(CH2)4OH is 55.1 g Known: Molar mass of C = 12.01 g/mol Molar mass of H = 1.008…

Q: A sample of glucose, C6H12O6, contains 1.250 x1021 carbonatoms. (a) How many atoms of hydrogen does…

A: a).

Q: Which of the following items has the greatest number of carbon atoms? A. 2.71 x1022 molecules of…

A: Calculate in which one having greatest number of carbon atom ?

Q: The green color of leaves is due to thepresence of chlorophyll, C 55 H 72 O 5 N 4 Mg. A fresh…

A: Chlorophyll is a green pigment that absorbs sunlight and helps plants absorbs energy and utilize…

Q: A student is running an experiment in which 70.8 grams of FeCO3 is needed, but the only jar of…

A: FeCO3.H2O MW = 133.845g / mol Given  Required FeCO3 = 70.8g

Q: A patient is having an allergic reaction and takes a 25.025.0 mg tablet of the over‑the‑counter…

A:

Q: How many fluorine atoms are present in 6.25 g of C2F4?

A: Moles of C2F4 is calculated as follows,

Q: Which compound below is a molecular compound (or molecular substance)? NH3 KBr AGNO3 CaCl2

A: Molecular compounds are made when two or more element share electron in a covalent bond to connect…

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: How many carbon atoms are there in 0.100lb of glucose (C6H12O6)?  How many grams of nitrogen are…

A: 1 mole of substance is equal to Avagadro 's number of atoms.  Avagadro's no=6.02×1023 atoms no of…

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

A:

Q: How many fluorine atoms are present in 5.85 g of C2F4?

A: 1 mole of any substance contains 6.022 x 1023 atoms or molecules or particles. Here 6.022 x 1023 is…

Q: How many atoms of each element (C, H, O) are present in 12.6 g of C12H22O11?

A:

Q: How many H atoms are there in (3.80x10^2) grams of H2O?

A: Number of moles = Mass/Molar mass Number of atoms in 1 mole = 6.0224 x 1023 Molar mass of water =…

Q: A sample of rubbing alcohol solution contains ethanol, C2H5OH(l). If the sample contains 1.25 × 1023…

A: Given;

Q: A patient is having an allergic reaction and takes a 12.5mg tablet of the over‑the‑counter…

A: The mass of the tablet is = 12.5 mg = 12.5 x 10-3 g The molecular formula of diphenhydramine…

Q: How many molecules are there in 1,975.0 g of table sugar, sucrose, C12H22011?

A: Given,  1975 g of table sugar, C12H22O11

Q: 2Na + Cl2 → 2NaCl. If I want to make 100.0 g of salt, how much elemental chlorine would I need?

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of  Cl2 then…

Q: Question is attached

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

Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.56 mL of water at…

A: The density of a substance is the mass of the substance upon volume. The number of molecules is the…

Q: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one…

A:

Q: How many moles of CCL4 are present in 7.65 X 1045 molecules of the compound? W mass of this amount…

A: Given: The number of molecules of CCl4 is 7.65×1045. The number of moles and mass of CCl4 is to be…

Q: How many atoms of carbon are present in 34. 5 g caffeine, Cg H10N4O2 ? A 1.08 x 1024 B 8.57 x 1023…

A: given, the weight of caffeine = 34.5g

Q: What is the mass in grams of 6.56 x 1022 molecules of lactic acid (C3H6O3), the compound responsible…

A: 1- First we need to calculate the moles of lactic acid :  Moles of lactic acid = [ number of…

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: What is the mass of 5.27 x 1021 water molecules ? 6.75 g 5.27 g 0.158 g 1.25 g

A: 1 mole of any substance contains 6.023 × 10^23 molecule of constituent atoms , ions. 6.023× 10^ 23…

Q: The number of molecules in 56 grams of water are(Take 6.022*1023=NA

A:

Q: A patient is having an allergic reaction and takes a 50.050.0 mg tablet of the over‑the‑counter…

A: Given : Mass of C17H22ClNO = 50.0 mg = 0.050 g                                                (Since…

Q: What is the mass in grams of a molecule of diethyl ether?

A: The structural formula of diethyl ether is (C2H5)2O. The molecular weight of diethyl ether can be…

Q: Which substance contains more carbon by mass, 6.01 g of glucose, C6H12O6 or 5.85 g of ethanol,…

A:

Q: Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3.(a)…

A: The molecular formula of capsaicin is C18H27NO3.

Q: How many hydrogen atoms are in 3.25 g of acetic acid, CH3COOH(I)? a. 3.26 x 1022 b. 6.74 x 1022 C.…

A:

Q: If you have 168 grams of C6H12O6 (glucose), how many moles of glucose do you have? How many…

A: The number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance is…

Q: Approximately how many molecules of H2O are in one spoonful of water, assuming that the spoon holds…

A: Given, a spoon holds about 18 mL of water.we are asked to calculate the number of water molecules in…

Q: What mass of carbon dioxide would you need to have 0.65 moles of CO2?

A: Given : Moles of CO2 = 0.65 mol

Q: 7. Calculate the molar mass of each of the following compounds. a. Fe,O,, iron(III) oxide b. BCl,…

A: Molar mass is the sum of atomic masses of all atoms present in the given Molecule.    Percentage…

Q: What is? CUSO•5H,0 Cuso '2

A: CuSO4 is a copper(II) sulfate with the oxidation state of copper to be+2. It's an inorganic…

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.