20)A 10 g sample of which substance contains the greatest number of hydrogen Atoms? 

Q: Without doing any calculations, determine the sample will contains the greatest amount of the…

A: One mole of any chemical substance has Avogadro’s number of atoms in it. The substance with greater…

Q: A sample of silicon having a mass of 3.43 g combined with oxygen to form a compound with a mass of…

A:

Q: How many Cu atoms are present in 0.5 moles of copper?

A: Avogadro concept: According to the Avogadro concept, the number of atoms present in one mole is…

Q: A container has 5.80 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: Bromine gas = Br2 Molar mass of Diatomic  Br2 gas = 159.808 g/mol 6.022 x 1023 molecules mass =…

Q: Determine the number of atoms in 30.0 g of Ne.

A: One mole of any species contains avagadro number of atoms, molecules and ions.

Q: How many hydrogen atoms do 27.0 g of H2O contain?

A: In every molecule or substance for one mole of it, there will be 6.022×1023 units of it. This is the…

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: How many moles of NH3 are present in 4.98 g of the compound?

A:

Q: How many atoms can be found in .2 moles of Cobalt?

A: Since number of atoms in a element = moles X Avogadro's number  Avogadro's number = 6.022 X 1023…

Q: 5. How many hydrogen atoms are in 15 g of methane?

A: The answer is explained below.  Given that, the mass of methane = 15 g.  & we know the molar…

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

A:

Q: What is the mass, in grams, of a xenon hexafluoride sample containing 40.0 g of fluorine?

A: A xenon hexafluoride molecule consists of one atom of Xe and 6 atoms of fluorine. The formula of…

Q: How many moles of sodium carbonate contain 1.773 × 1017 carbon atoms?

A:

Q: What is the mass of oxygen in a 782.9g sample of TiO2?

A: Step : 1          What is the mass of oxygen in a 782.9g sample of TiO2?

Q: A student weighs an 18 g sample of Al and needs the same number of magnesium atoms as she has in the…

A:

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: Determine the number of atoms in 30.0 g of Zn.

A: Given that: Mass of zinc = 30.0 g Number of atoms of Zn = ?

Q: given a 81.9 mol sample of Ne, how many atoms are present?

A: 6.023 × 10^ 23 is called Avogadro's number. One mole of any substance contain Avogadro's number of…

Q: What is the mass, in grams, of 7.70×1020 molecules

A:

Q: One mole of (NH4)2HPO4 contains how many moles of hydrogen atoms?

A: First count the number of Hydrogen atoms in 1 mol of given formula.

Q: Determine the number of atoms in 3.50 g of gold.

A: Given data- Number of atoms in 3.5 Gold .Molar mass of Au=196g/mol

Q: A sample of ammonia has a mass of 98.5 g. How many molecules are in this sample?

A:

Q: Br A) What is the molecular formula for this compound? B) What is the empirical formula for this…

A: A Molecular formula  represent the total number of atoms of each element in each molecule of a…

Q: How many atoms of hydrogen are present in 24.49 g of C3H7OH?

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

Q: mass of potassium iodide

A: Moles of potassium iodide (KI) 0.0950 has three significant figures because zeros at the beginning…

Q: 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

A: In this question, we want to determine the moles of Nitrogen gas. How we can determine, you can see…

Q: 6) How many molecules and atoms in 6 moles c

A: The answer of following question is given in next step.

Q: Consider a sample of aluminum nitrate that contains 1.72 × 10²⁴ atoms of nitrogen. What is the mass…

A:

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

A:

Q: How many grams of carbon dioxide contain 2.38 grams of O ?

A:

Q: Consider a 2.938 mol sample of C4H8. How many atoms of H would be in this sample?

A: 1 mol of sample contains = 6.022 x 1023 particles  = avogadro number of particles (NA)  1 mole of…

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: 4. How many grams of cobalt oxide must you measure out to have a 3.567 mol sample?

A: Given: No. of mole Cobalt oxide ( CoO) = 3.567 moles Find mass of Cobalt oxide =???

Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

Q: What mass in grams of TNT can be made from 598 g C7H8?

A:

Q: What is the amount of H present in the original sample, in moles?

A: We have moles of H2O in the compound = 0.00610   (= Given mass of water (0.110 g) divided by the…

Q: How many atoms are present in a 0.300-mole sample of gold?

A: The number of molecules from the number of moles of a compound can be determined by Avogadro's…

Q: How many calcium atoms are in 1 g of CaO?

A:

Q: A 0.500 g sample of tin foil reacted with oxygen to give 0.635 g of product. (a) What is the…

A:

Q: How many nitrogen atoms are in 12.3g of Ca(NO3)2 ?

A: Here, we have to find the number of nitrogen atoms in 12.3 g of Ca(NO3)2.

Q: 4. If the manufacturer of Remdesivir has access to 1394 g of phosphorus atoms, how many grams of…

A: The chemical formula of Ramdesivir: C27H35N6O8P. The given mass of phosphorus atoms = 1394 g Atomic…

Q: 19 How many nitrogen atoms are present in 25.00 g of N,O,?

A:

Q: Calculate the average mass of 500. atoms of iron (Fe).

A: Atomic mass of one iron atom = 55.845 u molar mass = 55.845 gm/mol Use Avogadro's number to divide…

Q: 18. 7.68 g/mol ® ng/molecules

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: What amount (mol) of Rb is present in a sample containing 3.15×1025 atoms?

A: Given,Number of atoms in a sample = 3.15 × 1025 atomsWe know that, 6.022 × 1023 atoms are in 1 mole…

Q: How many total atoms in 23.7 g of water ?

A: Stoichiometry is mainly based on the calculation of moles, molar mass and volumes. These two values…

Q: What is the mass (grams) of 2500. carbon atoms?

A:

Q: how many atoms are present in 1.694g of cobalt(II) hypochlorite?

A: Given : Mass of cobalt (II) hypochlorite i.e Co(ClO)2 = 1.694 g Each molecule of Co(ClO)2 contains,…

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.