The vitamin A molecule has the formula C20H30O, and a molecule of vitamin A2 has the formula C20H28O. Determine how many moles of vitamin A2 contain the same number of atoms as 1.000 mol vitamin A.

Q: What quantity in moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of…

A: We know that ; 1 mole of substance contain = Avogadro's number of atoms . ( Avogadro's number =…

Q: A compound contains 18.7% lithium, 16.3% carbon, and 65.0% oxygen by mass. If its molecular formula…

A: Given data, %Li = 18.7% %C=16.3 % %O=65.0%  molar mass of compound= 73.8 g mol-1 Then, molecular…

Q: A beaker contains 5.75 x 1024 molecules of ethanol. How many moles of ethanol are there in a beaker?

A:

Q: 1. How many moles of Ca are there in a sample that contains 7.63x10²² calcium atoms? moles 2. How…

A:

Q: Our bodies synthesize protein from amino acids. One of these amino acids is glycine, which has the…

A: First calculate the molecular mass of the compound from given molecular formula.

Q: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:

A: Given: Number of molecules of water = 4.0×1021 molecules   We know that,    1 mole = 6.023×1023…

Q: 1. a.) How many moles of sodium in 0.46g of sodium? b.) How many atoms of sodium are in 0.46g of…

A: The number of moles (n) of a substance can be calculated as: n=Given massMolar mass······(1) One…

Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

A:

Q: number of atoms in 37 g of vanadium

A:

Q: Calculate the following: 1. Mass of 4.3x10mol of lead 2. Mass of 3. 8x10 antimony atoms 3. Number of…

A:

Q: Determine the number of moles of the compound and determine the number of moles of each type of atom…

A: From all the options only 3 can be answered. The number of moles can be given as: (a) The number of…

Q: Aluminium has a density of 2.70 g/cm3. How many moles of aluminum are in a 13.2 | cm block of the…

A:

Q: how many atoms of H are in 4.17 mols of H2O?

A: Given that the number of moles of water is 4.17 mol. The number of moles of hydrogen is given below.

Q: How many moles of H2SO4 do you have if you there are 1.64x 10^12 molecules of H2SO4?

A: Data given: number of molecules of H2SO4 = 1.64 X 1012 Atomic weight of the sulphuric acid = 98.07…

Q: How many moles of C4H10 contains 9.25 x 10^24 molecules of C4H10?

A: Conversion of units:-             This can be done by a methond called unit factor method orcalled…

Q: Q9) How many moles of Cl atoms are in 65.2g of CHCI3 ? a) 15 b)35 c) 30 d) 3.5

A: Provided amount of CHCl3=65.2g Molar mass of CHCl3=119.38g

Q: Calculate the number of moles of carbon atoms present in each of the following samples a) 1.294 g…

A:

Q: portant valuės if needed for this question. The amino acid asparagine has the molecular formula…

A: Determine number of atoms in both compound and then equate them because both must have similar…

Q: A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon…

A: 1 mole of any substance contains avagadro number of atoms i.e.6.022×1023 atoms.  6.022×1023 atoms of…

Q: The amino acid alanine has the molecular formula C3H7NO2, and the amino acid phenylalanine has the…

A: Number of atoms in 1 molecule of alanine = 13 atoms Number of atoms in 1 molecule of phenylalanine =…

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many…

A: Explained as follows

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A:

Q: 1 mol of ibuprofen, C13H18O2, contains how many mol of atoms?

A: The molecular formula of ibuprofen is C13H18O2  Hence from the formula we can see that 1 molecule of…

Q: A sample of propane, C3H8, contains 13.8 molesmoles of carbon atoms. How many total moles of atoms…

A:

Q: How do you get the molecular formula, if 0.08570 moles of the compound weighs 7.885 g, and the…

A: Let's compound be 'X' Given : moles of compound  'X' = 0.08570 Weight of compound 'X' = 7.885 g

Q: A sample of propane, C3 H3, contains 13.1 moles of carbon atoms. How many total moles of atoms does…

A:

Q: Consider a sample of carbon tetrafluoride that contains 2.13 × 1024 atoms of fluorine. Using the…

A:

Q: The atomic mass of chromium is 51.996 amu. How many moles of Cr are there in a 5.44 g sample of…

A: The atomic mass of Chromium is 51.996 amu  1 amu = 1 g/mol  Therefore, 51.996 amu = 51.996 g/mol…

Q: How many moles of aspirin are in the tablet?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 molecules

Q: What is the mass of 29.4 mol of benzene (C6H6)?

A: Mole is a unit of measurement to represent the amount of substance. It can be expressed as,…

Q: 1. How many atoms are in 3.2 mol of chlorine? 2. How many moles of chlorine are in 1.0 x 10° atoms?

A: To calculate: 1. The number of atoms in 3.2 mol of chlorine. 2. The number of moles of chlorine in…

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: The chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE) is…

Q: Glycine is an amino acid with the formula C2H5NO2. Determine the number of moles of carbon in 81.39…

A: By using the mole concept we can calculate the number of moles carbon in C2H5NO2

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Cyanocobalamin is vitamin B12 with molar mass of 1355.38 g/mol

Q: A compound contains 12.8% carbon, 2.1% Hydrogen, and 85.1% bromine. Calculate the empirical formula…

A: Since the compound is having only carbon, hydrogen and bromine. Hence the empirical formula of the…

Q: Calculate the number of atoms of each element in C12H22O11 and  Calculate the moles of each…

A: The given molecule is sugar. Molecular formula of sugar is C12H22O11. A molecular formula is used to…

Q: What mass of CCl4 contains 7.0x1026 molecules of CCl4

A:

Q: Determine which of the following contains the greatest mass of hydrogen: 1 mol of CH4, 0.6 mol of…

A:

Q: Using the models of the molecules " (black=C, white=H, yellow=S, green=Cl), determine each of the…

A: A question based on ball and stick model, which is to be accomplished.

Q: 1.) The average cup of coffee contains about 125 mg of caffeine, C8H10N4O2. a.) How many moles of…

A: The given data: The mass of Caffeine = 125 mg. To determine = a.) The number of moles of caffeine…

Q: Quinine (C20H24N2O2 ) is an anti-malaria drug. If a person had 0.0654 moles of quinine, how many…

A:

Q: The elements A and B combine to produce two different compounds: A3B and AB2. If 0.18 mol of A3B has…

A: We can calculate the molar mass of any substance by the following formula : Molar mass = mass of…

Q: Which of the following compounds have the same empirical formula? O H20 and H2O2 O N204 and NO2 O CO…

A:

Q: Consider 68.9 g of Pb(SO4)2 to answer the following questions. a. How many moles of Pb(SO4)2 is…

A: Given mass of Pb(SO4)2 = 68.9 g

Q: Give an example of another molecular formula (C10H8), that could have the empirical formula you…

A: We need to find an another compound that is having empirical formula C5H4.

Q: How many grams of sugar C12H22011 that consists of 1.25 x 1024 atoms of carbons? Molar mass of…

A: Number of atom of carbon = 1.25 × 1024 atoms Number of atoms of carbon = number of moles × Avogadro…

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.