Approximately how many molecules of H2O are in one spoonful of water, assuming that the spoon holds about 18 mL?

Q: How many total atoms are in 0.610 g of P2O5?

A: Given,Mass of P2O5 = 0.610 gMoles of P2O5 can be calculated as:

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H.PO.?

A: One mole of H3PO4 = 6.022 × 2023 formula…

Q: Calculate the number of moles of butane, C4H10, in 151 g of butane.

A: Step : 1           Calculate the number of moles of butane, C4H10, in 151 g of butane.

Q: How to calculate mass (in grams) of one formula unit of 13.0 g of Ca(NO3)2?

A:

Q: How many atoms are contained in in 3.62 mol O2 ?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given molecule is O2. In…

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  182 grams of methane,…

A: Here a chemical reaction is given that is  C + 2H2 → CH4. Now, we have to calculate how many moles…

Q: How many molecules are contained in two 500.-mg tablets of penicillin (C 16H 18N 2O 4S, molar mass…

A: Given data, The mass of penicillin = 500 mg The molar mass of penicillin = 334.4 g/mol. To calculate…

Q: How many moles are in 303 g of Mg(OH)2?

A: Even a small sample of matter may contain millions of atoms, molecules or ions. In order to deal…

Q: How many hydrogen atoms are present in 75.0 of g H2O?

A: Mass of water, H2O = 18.016 g/mol Mass of water = 75 g Moles of water, H2O = Mass Molar mass=75…

Q: If a sample of Ca(OH)2 is found to contain 5.34 mol of OH" ions how many moles of Ca?+ ions are…

A: Given: moles of OH- ions = 5.34 mol

Q: How many molecules are there in a 5.13-mg sample of chlorine trifluoride

A: The formula of chlorine trifluoride is ClF3  Hence the molar mass of ClF3 = Atomic mass of Cl + 3 X…

Q: How many H atoms are in 19.9 g of isopropanol (rubbing alcohol), C3H3O?

A:

Q: What number do you get if youdivide the mass of 1 mol of waterby the mass of 1 molecule of water?

A: 1 mole of atoms refer to the total number of protons multiplied by the atomic mass unit and avogadro…

Q: the mineral gibbsite has the formula al(oh)3. what mass in,in kg, of al is present in 2.9 kg of…

A: Given, mass of gibbsite,  Al(OH)3  = 2.9 kg = 2900 g Thus, moles of gibbsite can be calculated as,…

Q: How many atoms of Mg, O, and H are represented by the notation 3 Mg(OH)2?

A: To find: The number of atoms of Mg, O and H are represented by the notation 3 Mg (OH)2

Q: What is the mass, in grams, of 9.47×1024 molecules of methanol (CH3OH)?

A: The number of moles of methanol is calculated as,

Q: How many molecules are contained in a 325-mg tablet of aspirin (C 9H 8O 4, molar mass 180.2 g/mol)?

A: Aspirin is an antipyretic and anti-inflammatory drug and is widely used as an antiplatelet agent. It…

Q: Caffeine has the formula C8H10N4O2 . If an average cup of coffee contains approximately 125 mg of…

A: In the international system of units the mole (symbol: mol) is the quantity unit for measurement…

Q: How many molecules are in 25.7 g of O2?

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

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H3PO4?

A: Number of moles=Given massMolar massGiven mass of Phosphoric acid=0.1488 gMolar mass of Phosphoric…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid , H3PO4?

A: Given : mass of H3PO4 = 0.1488 g Molar mass of H3PO4 = Atomic mass of H X 3 + Atomic mass of P +…

Q: Calculate the molar mass (g/mol) of the compound. NaNO2

A: Calculate molar mass of NaNO2 ?

Q: How many moles of Ag are in 87.4 grams of Ag₂O?

A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles

Q: How many atoms of hydrogen are in 132 g of (NH4)2HPO4?

A: Given: 132g of (NH4)2HPO4 The given grams of (NH4)2HPO4 is converted into moles as follows,

Q: A flask contains 0.490 mol of liquid bromine, Br2Br2. Determine the number of bromine molecules…

A:

Q: How many total atoms are in a 75 g sample of Ag2O?

A:

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

A: Given;

Q: How many molecules are in 25 grams of AI(OH)3

A: 1 mole of any compound contain Avogadro number 6.022×1023of molecules.  Here we have to find the…

Q: A sample of CH 3 F contains 2.71 * 10 ^ 24 molecules. How many moles of CH 3 F are present?

A: Since moles of any molecule = number of molecule / Avogadro's number  Avogadro's number = 6.022 X…

Q: 1. What is the molecular formula of the molecule that has an empirical formula of CH2CI and a molar…

A:

Q: The molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain…

A:

Q: nitrogen atoms in 38.1 g of TNT, C,H;N3O6

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: How many molecules are present in 4.61×10^2 mol of O2?

A: Given data, Number of mol of O2 = 4.61 × 102 Calculating the molecules present. Therefore, The…

Q: a. Calculate the molar mass of Al2 O3. Molar mass = g/mol %3D b. Calculate the molar mass of Na3…

A: Answer: Molar mass of a compound is the sum of the gram atomic masses of all the atoms present in…

Q: Calculate the mass (in g) of sample. 2.8x1022 H2O molecules

A: Avogadro's  number (NA) gives the number of atoms, molecules or ions in one mole of the substance…

Q: How many molecules are in 16.1 g of C8H10?

A: Mass of C8H10 = 16.1 g

Q: 5) How many moles are in 54.4 grams of water (H,O)? 6) How many grams would 8.88 x 10 atoms of NaCl…

A:

Q: How many molecules are in 2.49x10^3 g of CuSO4?

A: Given mass of CuSO4 = 2.49x103 g According to Avogadro's Number  1 mole=6.02×1023 molecules  molar…

Q: How many O atoms are there in (2.23x10^2) grams of CaCO3 (MM = 100.09 g/mol)?

A: According to the molecular formula of CaCO3, 1 molecule of CaCO3 contains 3 atoms of O. So, 1 mol of…

Q: How many moles of Sodium thiosulfate, Na2S2O3, are present in 31.7 g of Sodium thiosulfate.

A: The number of moles of a substance is the mass of that substance upon its molar mass.

Q: What number of molecules (or formula units) are present in 4.70 g of each of the following…

A: We have to calculate number of molecules in 4.70g of each compounds.

Q: How do I calculate the number of molecules in 6.00 ml of acetic anhydride, C4H6O3, if the density of…

A: Given : Volume of acetic anhydride = 6 mL Density of acetic anhydride =1.08 g/cm^3 ( 1 mL = 1 cm^3 )…

Q: How many moles of water, H2OH2O, contain 2.0×10222.0×1022 molecules of water?

A: Mole is the unit of  measurement  for  amount of substance

Q: How many total atoms are in a 0.400 g of P2O5?

A: Given, 0.400 g of P2O5

Q: (a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2…

A: A question based on general chemistry, which is to be accomplished.

Q: How many molecules of water, H2O, are present in 75.0 g of H2O?

A: • 1 mole = 6.023 x 1023 molecules.   1 mole = molar mass.   1 mole of H2O Contain = 6.023 x 1023…

Q: How many total atoms are in 0.630 g of P2O5?

A: Given: Mass of P2O5 = 0.630 g Molar mass of P2O5 = 141.9445 g/mol.

Q: 1)_CsHs +, _02 > _CO2 +_H20 6.003g of oxygen, makes how many moles of water?

A:

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  103.9 grams of…

A: In chemistry, one mole can be defined as quantity containing particles equivalent to 6.023 × 1023…

Q: The average nicotine (C 10H 14N 2, molar mass 162.3 g/mol) content of a Camel cigarette is 1.93 mg.…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

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.