Suppose you have 2.50×1018 reamsreams of lead (PbPb). How many lead atoms do you have

Q: Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample contains 36.0 g of carbon atoms.…

A: Mass of carbon =36 g  Moles of carbon in sorbose=36 g ×1 mol12.01 g=2.9975 mol Moles of H atom can…

Q: How many atoms are in the substance NazPO4? 8 O 1 7

A: Substance is defined as the material, of which something is made. These may be defined as  physical…

Q: Please provide all the work in detail because I will be using this to study

A: Number of moles of Mg and O can be calculated by the equation given below:

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: Complete the table. Element Mass Moles Number of Atoms Pt 0.0449 Fe 1.14 x 1025 Ti 23.8 mg Hg 2.05

A: Pt : Mass of Pt = moles x molar mass = 0.0449 x 195 = 8.76 g Number of atoms of Pt = moles x…

Q: How many atoms of hydrogen are in a sample of glucose (C6H12O6 molecular mass = 180.12 amu/molecule)…

A: A sample of glucose is considered. The number of atoms of hydrogen present in the sample can be…

Q: How many moles are in 56 g of 0.73 You eat a banana and you consume (on average) 6.5 x 10^21 atoms…

A:

Q: How many grams of tin are present if there are 6.022 x 10^23 atoms present in a sample

A: Applying mole concept. Mole= w/M

Q: In the formula for sodium phosphate (Na3PO4), how many moles of sodium are represented? How many…

A: In the formula for sodium phosphate (Na3PO4)   3 moles of sodium are represented 1 mole of…

Q: 15 g N2O has how many atoms of nitrogen?

A:

Q: How many g are in 2.90x1022 atoms of Mg? O 1.17 g O 6.02 x 1023 O 24.3 g O 1001 g

A: mass of mg present (in g) = 1.17 g Option D is correct Answer.

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

A:

Q: (Calculate the number of grams in one mole of CaS04.7H20, (Ca = 40, S=32, 0=16, H=1 .A g/mol 136 .B…

A:

Q: What is the mass of the compound C8H18 (Mm = 114.26 g.mol-1) that contains 7.20x1022 hydrogen atoms?

A: Given :- molar mass of C8H18 = 114.26 g.mol-1  Number of H atoms = 7.20 × 1022 atoms   To calculate…

Q: Calculate the number of atoms of chlorine in a 6.56×106 g6.56×106 g sample of chlorine.

A: We know,  Avogadro number of atoms are present in 1 moles of a compound .The Avogadro number is…

Q: Calculate the number of moles of 5.65*10^15 atoms of  ^3H

A: The SI unit or the measure for the amount of substance is called Mole. “1 mole is equal to Avogadro…

Q: An experiment requires that enough XeOF4 be used to yield 19.2 g of fluorine. How much XeOF4 must…

A:

Q: How many moles of Li are in 1.46 x 1015 atoms of Li? 4.12 x 10-8 mol 4.12 x 108 mol 2.40 x 10° mol…

A:

Q: Caffeine, a stimulant found in coffee and soda, has the mass percent composition: C, 49.48%; H,…

A: GIVEN: The mass % of carbon= 49.48% The mass % of hydrogen=5.19% The mass % of nitrogen=28.85% The…

Q: Calculate the mass, in grams, of 1.751.75 mol of neon, NeNe.   mass of NeNe:…

A: The mass of 1.75 mol of neon is calculated as,

Q: If you have 2.75 moles hydrogen atoms, how many moles of (NH4)2CO3 do you have?

A: Reference: Self Introduction: Mole concept: A mole is defined as the quantity of a substance that…

Q: If 2.06 mL of seawater contains about 6.91×10-14 moles of gold, how many atoms of gold are in that…

A:

Q: atoms

A:

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 25.5 mg…

A:

Q: A sample of iodine solid has a mass of 32.9 grams. How many I2 molecules are there in the sample?…

A: A mole is defined as one-gram formula or molecular weight of the compound. A mole is also defined as…

Q: How many moles of sodium (Na) are in 1.75×1024 Na1.75×1024 Na atoms?

A: Number of moles is calculated using formula,

Q: The molecular formula of Acetic Acid is HC2H3O2. What is the empirical formula? СНО CH20 HC2H3O2…

A: • Empirical formula represents the simplest whole number ratio of atoms of different elements…

Q: an ingredient in some sunscreens is composed of carbon (61.31%), hydrogen (5.14%), nitrogen…

A: • Since, we are having mass per cent, it is convinent to use 100 g of the compound as the starting…

Q: Suppose you have a sample of sodium weighing 11.74 g. How many atoms of sodium are present in the…

A: The number of moles (n) of sodium present in the given sample is calculated from the expression (1).…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17H22CINO4, of mass 23.5 mg.

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

Q: How many hydrogen atoms are in 29.85 g (NH4)2SO4?

A: Given :-  mass of (NH4)2SO4 = 29.85 g  To calculate :-  no. of H atoms

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4, of mass 22.0 mg.

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

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

A:

Q: The true value of a compound’s molar mass is 176.082 g/mol. You do an experiment and determine the…

A: True value of molar mass = 176.082 g/mol Experimental value of molar mass = 177.85 g/mol. % error =…

Q: A sample of ammonia(NH3 17.03 g/mol) has a mass of 56.6 g. How many molecules are in this sample (1…

A: mol designates 6.022 * 10 raise to power 23 molecules.

Q: 1. An essay written by carbon pencil on a paper weighs 0.5 mg. How many carbon atoms present in the…

A:

Q: How many moles of calcium atoms do you have if you have 4.69 x 10 atoms of calcium. (The mass of one…

A: Given, number of atoms = 4.69*1021atoms

Q: A sample of C3H8 has 8.00×10^24 H atoms. How many carbon atoms does the sample contain?  What is…

A: Given :- number of H atoms = 8.00 × 1024 atoms  To be calculated :-  No. of C atoms in sample…

Q: How many chlorine atoms are there in 8.4 mol of PCl5, Phosphorous PentaChloride

A: The molecule given is PCl5  and moles of PCl5 = 8.4 Since 1 molecule of PCl5 has  1) 1 P atom  2) 5…

Q: How many atoms are in 5.90 moles of selenium (Se)? x 10 atoms

A: Given : Moles of Se = 5.90 mol.

Q: a sample of male testosterone C19H28O2 contains 3.88*10^21 hydrogen atoms. How many atoms of carbon…

A: Given : Number of hydrogen atoms in C19H28O2 = 3.88 X 1021 atoms.

Q: What is the mass of 1.78 moles of P205? Use 2 decimals for your atomic weights and 2 decimals for…

A:

Q: How many chlorine atoms are in 12.2 g of CCl4? (C: 12 g, Cl: 35.5 g)

A: Given : Mass of carbon tetrachloride (CCl4)=12.2 g The molar mass of carbon tetrachloride=12 x1 +…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula is the simplest ratio of the elements present in the given molecular formula.…

Q: A sample of C3H8 has 6.32×1024 H atoms. How many carbon atoms does the sample contain? What is the…

A: In a molecule of C3H8, the mole ratio of carbon to hydrogen is 3:8. No of moles of a substance can…

Q: How many moles of sodium atoms do you have if you have 5.60 × 10²³ atoms of sodium. (The mass of one…

A: Given →5.60*1023 atoms of sodium→mass of one mole of sodium=22.99 gone mole sodium atoms mean…

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: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 22.5 mg…

A: Since we know that  1.0 mol of any substance = 6.022 × 1023 atoms  So first we calculate the number…

Q: Based on your answer in Part A (0.1 mol 13C), calculate the number of atoms in this amount of 13C?

A: One mole of any elements contains Avogadro number of atoms.  Avogadro number is 6.022*1023.

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.