Determine the number of atoms present in 20.0 g samples of each of the following elements? a. Be b. Ar c. Cr d. Sn

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: According to the periodic table of elements, see Appendix C, the molar mass of copper is…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of atoms of an element is called…

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: A sample of pentanol, C5H120, contains 1.69 mol of the compound. Determine the amount (in mol) of…

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Q: Calculate the mass (in grams) found in 0.805 mol sulfur.

A: Since mass = moles X molar mass Since the formula for sulphur is not given  So assuming its natural…

Q: Calculate the number of moles in 0.41 g titanium.

A: The number of moles in 0.41 g titanium is to be calculated

Q: number of atoms in 37 g of vanadium

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Q: A sample of pure silver has a mass of 15.4 g. Calculate the number of moles in the sample and silver…

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Q: If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the compound…

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Q: Determine the mass in grams of 6.07 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

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Q: The molar mass of adamantium (Ad) is 49.08 g/mol. Determine mass of 0.679 moles of Titanium (IV)…

A: Given :- molar mass of Ad = 49.08g/mol                No.of moles of TiAd4 = 0.679 mol  To calculate…

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

A: The given mass of S is 30.0 g The molar mass of S is 32 g The conversion of mass to moles can be…

Q: How many total atoms are in 0.910 g of P,0,? total atoms:

A:

Q: Determine the mass, in grams, of 0.445 moles of Mn (1 mol of Mn has a mass of 54.94 g). with the…

A: The amount of moles in a substance can be determined by using its Molar mass. The molar mass is the…

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

A: We have density as 2.7 g/cm3 , we have to calculate the moles of Al in 13.2Cm3 of Al.

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

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Q: Determine the mass, in grams, of 0.465 moles of S (1 mol of S has a mass of 32.07 g).

A: Given that, Moles of S= 0.465 moles MM of S= 32.07 g mol-1 then,

Q: A substance has a molecular mass of 143151 u. Find the mass of one molecule of this substance.

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

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

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Q: Determine the mass, in grams, of 0.330 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A: The given moles of Pb can be converted to mass by using the formula given below as; Mass = Moles ×…

Q: determine the number of atoms of 47.56g of Pa

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Q: Complete this formula for molar mass of the compound sulfur hexafluoride s- ?g/mol x ?Mol = ?g f-…

A: Ans As we know the molar mass of the formula is equal to the total mass of elements presesnt S    32…

Q: Which statement BEST describes why we use moles when measuring quantities of atoms and molecules? O…

A: The mole is the unit of measurement for amount of substance in the International System of Units. It…

Q: Consider 1.00 g of Copper (Cu) metal. How many Cu moles are present in this sample? How many Cu…

A: Since moles of element = mass of element / Atomic mass of element  Atomic mass of Cu = 63.5 g/mol…

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

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Q: A 3.87 g sample of a hydrate of MnCl2 was heated to drive off the water. The anhydrous powder…

A: The mass of a hydrate of MnCl2 = 3.87 g The mass of the anhydrous powder after heating = 2.46 g We…

Q: Calculate the mass in grams of lead (IV) acetate (443.3 g/mol) that will have 86g of carbon atoms.

A: Given, Mass of C = 86 g Molar mass of lead acetate = 443.3 g/mol

Q: Determine the mass, in grams, of 0.575 moles of I (1 mol of I has a mass of 126.90 g).

A: Molar mass of I = 126.9 g

Q: how many atoms are 4.52 moles of carbon

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Q: What is the molar mass of the molecule OF? A. 19 g/mol OF B. 35 g/mol OF C. 46 g/mol OF D. 54 g/mol…

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Q: 22) A sample has a molar mass of 143 g/mol, identify the sample. A) ACCI B) AuCI C) AGCI

A: Molar mass of any molecule is given as the sum of the atomic masses od each of the constituent…

Q: The number of moles of potassium that contains 8.47×1025 atoms.

A: Given,Number of potassium atoms = 8.47 × 1025

Q: Use compound formulas to determine element composition. A sample of pentanol, C5H120, contains 1.69…

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

A: 1 mole of a substance contains Avogadro's number of molecules.

Q: What quantity is needed to convert between the moles of carbon and the number of carbon atoms in a…

A: Moles of Carbon atom = amount of carbon atom/atomic mass of carbon Number of carbon atom means how…

Q: Consider a 15.0-g sample of a potassium salt. This compound is 32.86% by mass of potassium.…

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Q: Calculate the mass of .354 moles of platinum metal

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

Q: Which sample contains the greatest number of atoms. A sample of Li that contains 3.12×1024 atoms or…

A: Avogadro's  number is a proportionality factor and gives the number of atoms, molecules or ions in…

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

A: On knowing the masses of elements, which element have greater number of moles can be identified…

Q: A sample of carbon (C) contains 4.74× 1021 C atoms. How many moles of carbon are present in the…

A: Number of moles = Number of atoms/N Where, N = avogadro number                  = 6.0224 × 1023

Q: Glycine is an amino acid with the formula C,H,NO,. Determine the number of moles of carbon in 35.31…

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Q: Benzene has the molecular formula CcH. A sample of benzene has a mass of 43.95 g. (a) Calculate the…

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Q: Determine the mass, in grams, of 0.675 moles of S (1 mol of S has a mass of 32.07 g).

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Q: Calculate the number of moles in 4.95 g nickel .

A: The Number of Moles of Nickel can be calculated as -

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: How many grams of F are in 325 g CaF, ? mass: g

A: Calculate number of gram of F in CaF2 ?

Q: 16) Determine the number of atoms in 48.3 g sample of zine (65.38g Zn= Imole Zn

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Q: Calculate the number of atoms in 15.0g of aluminum metal

A: Number of atoms in per mole = 6.022 × 1023 atoms  Molar mass of Al metal = 26.98 g/mole

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

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

Q: Determine the mass, in grams, of 0.295 moles of Mn

A: Given :- number of moles of Mn = 0.295 mol  To calculate :- mass of Mn (in g)

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.