How many moles of atoms are in each elemental sample? 1.10 g Zn 25.4 g Ar

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: Complete the table. Element Mass Moles Number of Atoms Na 38.5 mg C 1.12 V 214 Hg 1.44 kg

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: 21.4 g Ar How many moles of atoms are in each elemental sample?

A: Given  Mass of Ar = 21.4 g

Q: A sample of ammonia Nh3 contains 1.2 X 1023 hydrogen atoms. How many NH3 molecules are in the…

A: Ammonia (NH3) is a molecule that exists as a gas at Standard temperature (298 K). It contains atoms…

Q: What is the mass in grams of each elemental sample? 6.61 mol W to grams

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Q: How many atoms are in a 1.8 mol sample of Magnesium (Mg)?      1.5 x10241.5 x1024 atoms Mg   2.99 x…

A: Given : Moles of Mg = 1.8 mol.

Q: Which sample contains the greatest number of atoms? O 102 g Ag O 189 g Ir O 18 g O O 53 g Fe

A: The number of moles is defined as the ratio of a given mass to molar mass. No. of moles =Given…

Q: How many atoms are in 1.50 moles of helium (He)?   a 2.50 x 1022 atoms He  b 9.03 x 1023 He atoms…

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Q: A sample of C3H8C3H8 has 4.48×1024 H4.48×1024 H atoms. How many carbon atoms does the sample…

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Q: How many Co atoms are there in 4.62 moles of Co? atoms

A: Number of moles of Co = 4.62 mol Number of bromine atoms = 6.00 × 1024 atoms

Q: sample contains 52.0 g of elemental phosphorus, P4. Determine the number of moles of P4 and the…

A: Given ,  sample contains 52.0 g of elemental phosphorus, P4. To Determine the number of moles of P4…

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: According to given data%mass of Tellurium in compound=28.53 %and% mass of Bromine in compound=71.47…

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: A brass alloy contains 78.6% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

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Q: How many copper atoms are present in a 2017 penny with mass 3.10 g? Modern pennies are 97.5% Zn and…

A: we have a penny of mass 3.10 gram. and it's also mentioned that in  a modern penny the percentage of…

Q: A brass alloy contains 87.7% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

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Q: A sample of aluminum foil contains 8.00×10238.00×1023 atoms. What is the mass of the foil?

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Q: mandalorious acid is a weak acid that reacts with water: HMaO2 (aq) + H2O (l) MaO2- (aq)+ H3O+…

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Q: how many moles are in 46.5 g of pure aluminum and how

A: 1. Mole in terms of mass:  1 mole = atomic mass of an atom. No. of moles (n) of an atom can be…

Q: Consider a 3.55 g sample of C4H10. How many atoms of C would be in this sample?

A: Molar mass of C4H10  = 58 g/ mol Fraction of  C = 48/58 = 0.8276

Q: A sample of nitrogen has a mass of 30.2 grams. How many N atoms are there in the sample? How many…

A: First find no. of moles of N2 then no. of molecules then no. of N atoms.

Q: A sample of terbium contains 3.01×1025 atoms. What is the total mass of this sample?The molar mass…

A: It is required to calculate the mass of 3.01 x 1025 atoms of terbium and the molar mass is 158.9…

Q: How many moles of Co are there in a sample of Co that contains 9.51×10 atoms? moles

A: Given: Number of atoms of Co = 9.51*1023 atoms

Q: How many moles of atoms are in each elemental sample? 2.21×10−2 g Li

A: An atom consists of protons, electrons, and neutrons. Protons are positively charged species and…

Q: Determine the number of moles of hydrogen atoms in sample. 2.4mol C6H12

A: Given,

Q: How many lithium atoms are present in 49.17 moles of lithium?

A: 1 mole contains 6.022 ×1023 atoms