How many Sc atoms are there in 5.35 moles of Sc?

Q: Explain clearly what is meant by the statement “The atomic mass of gold is 197.0 amu.”

A: “The atomic mass of gold is 197.0 amu.” The explanation of the above statement has to be given…

Q: How many sulfur atoms are there in 3.8 mol of sulfur?

A: 1 mole of any substance consists of 6.022 x 1023 atoms of that substance.Similarly, 1 mole of sulfur…

Q: How many silicon atoms are there in 1.00g of silicon?

A: Given: Mass of silicon=1.00 g Mass of 1 mole of silicon=28.0855  g

Q: How many Cr atoms are there in a 50.1 gram sample of Cr ? atoms

A: Mass of sample Cr = 50.1 g  Number of Cr atoms = ?  Molar mass of Cr atom = 52.0 g/mol  As we know…

Q: How many grams of Li are there in a sample of Li that contains 3.58×1023 atoms? grams

A: Number of Li atoms (n) = 3.58×1023 Avogadro's constant (N) = 6.023×1023 Molar mass of Li = 6.94…

Q: How many atoms of neon are present in 1.30 moles of neon?

A:

Q: What is the mass, in grams, of 557 copper atoms?

A: Given, number of atoms of copper =557 we are asked to calculate the mass (in grams) of 557 copper…

Q: How many grams of Kr are there in a sample of Kr that contains 6.43×1023 atoms?

A: What is one-mole? Mole is a unit of measurement. One mole of a substance is something that contains…

Q: How many atoms are there in 2 mole of a calcium

A: Given that,  No. of moles of Ca= 2 mole No. Of atoms?

Q: How much does 4.28 x 10 21 atoms of Nickel weigh?

A: We know that, one mole of any substance contains 6.022 × 1023 atoms. We can determine the weight by…

Q: How many moles of atoms are there in 2.12 x 10 43 atoms of Nickel?​

A: 1 mole = 6.022×1023 [ Avogadro's number ] If any metal consists of 6.022×1023 atoms it is said to…

Q: How many protons neutrons and electrons are present in a single atom of osmium - 190?

A: Since the Atomic number of Osmium = 76  Hence number of electrons = Atomic number = 76

Q: How many protons and neutrons are present in an atom of 39/19K?

A: Number of protons and neutrons in an atom of  39/19K

Q: If a sample of lithium contains 2.50x10* atoms of lithium-7 and 2.00×10 atoms of lithium-6, what is…

A: Given sample contains  Li-7=2.5×104 atomsLi-6=2×103 atoms

Q: Calculate the mass, in grams, of 262 atoms of cesium, Cs (1 mol of Cs has a mass of 132.91 g).

A: Molar mass = 132.91g I mol of Cs contains 6.022×1023atoms  Therefore mass of 6.022 × 1023 atoms =…

Q: How many Cr atoms are there in a 61.2 gram sample of Cr ? atoms

A: One mole of any element contains approximatly 6.022 x 1023 atoms (called as Avogadros number) of…

Q: How many Mn atoms are there in 2.63 moles of Mn?

A: 1 mol consists of 6.022×1023 atoms

Q: A 20.0 g sample of an element contains 3.89 x 1023 atoms.

A: Given:-  Number of atoms = 3.89 × 1023atoms Mass of sample = 20.0g

Q: How many grams of Sc are there in a sample of Sc that contains 4.91×1023 atoms?

A: The atomic weight of scandium is 45 gram per mole. The number of atoms present in one mole of any…

Q: 2. How many Sulfur atoms would be present in 32.5 moles of Sulfur?

A: Here,  Questions given moles and apply the value of Na , calculate the no of atom Na value is…

Q: How many moles of silver are 1.8x10^20 atoms of silver ?

A:

Q: Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 58.3% of…

A:

Q: how many atoms are in 1.65 moles of titanium

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: what are the grams in 6.15 x 10^22 aluminum atoms?

A: Ans  As we know that one mole of aluminium contains 6.023*1023 atoms So 23 g of aluminium contains…

Q: How many silver atoms are there in 3.84g of silver?

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of silver atoms weigh 107.87 g.

Q: How many atoms are there in 5.10 moles of sulfur (S)?

A: Number of sulfur (S) atoms = moles x Avogadro's number  Number of sulfur (S) atoms = 5.10 x 6.022 x…

Q: How many atoms are there in 182 g of Neodymium?

A: Atomic mass of Nd = 144.2 g/ mol

Q: How many atoms are there in 0.500 moles of Sodium?

A: The number of moles of sodium = 0.500 mol. The number of atoms present in 1-mole of sodium = 6.023…

Q: How many grams of sulfur are there in 2.01 atoms of sulfur?

A:

Q: How many atoms are contained in 100.5 g of liquid mercury, Hg?

A: Moles of Hg atoms = given mass molar mass of Hg=number of atoms of HgAvogadro's number  100.5…

Q: what is the mass, in grams, of 2.0×1023 lead atoms

A:

Q: 4. How many atoms of Iodine are contain ed in a sample of Iodine that has a mass of 1.247 x 105 amu?

A: Introduction: An atomic mass unit is a unit used to express the relative maases of atoms.One atomic…

Q: How many moles of N are there in a sample of N that contains 2.75×1024 atoms?

A:

Q: How many silver atoms are there in 3.78 g of silver?

A: Given information: Mass of silver = 3.78 g

Q: How many grams of Xe are there in a sample of Xe that contains 8.97×1023 atoms?

A: First we have to determine the moles of xenon.

Q: How many protons, electrons, and neutrons are present in an atom of 52/24Cr?

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: How many grams are in 5.4 moles of F? Atomic Weight Of F=19.00

A:

Q: How many Atoms are there in 6H2O

A: The given chemical compound is H2O. The name of the compound is water.

Q: If there are 8.59 x 1022 molecules of NaCl in a salt shaker, what is the mass of NaCl?

A:

Q: How many sulfur atoms are there in 6.40 molmol of sulfur?

A:

Q: How many helium atoms are there in a helium balloon containing (1.8x10^0) kg of helium?

A: Given :- mass of He = 1.8 × 100 kg  To calculate :- number of atoms of He  number of moles =…

Q: What mass of magnesium contains the same number of particles as there are in 6g of carbon 12

A: Given,  Mass of C = 6g  What mass of magnesium contains the same number of particles as there are in…

Q: How many moles of neon would there be in 7.59 x 1025 neon atoms?

A: Given that : Atoms of neon = 7.59 x 1025 atoms Moles of neon =?

Q: How many Ge atoms are there in 3.96 moles of Ge?

A: The formula we are going to use is Number of atoms of any element = number of moles X Avogadro's…

Q: How many silver atoms are there in 3.86 gg of silver?

A: Given, The mass of silver = 3.86 grams. Number of atoms of silver in this amount are:

Q: What is the mass in grams of 8.22x10^23 magnesium atoms, each having a mass of 24 amu?

A:

Q: How many atoms are there in 8.1 grams of chromium?

A: Given  Mass of Chromium   = 8.1 gram  Number of atom       = ? Molar mass of Chromium = 52 gram…

Q: How many protons neutrons and electrons are present in a single atom of bromine-79?

A: Since the atomic number of bromine = 35  hence number of electrons = Atomic number = 35

Q: How many moles of carbon are there in a diamond weighing 2.11g

A: Mole is defined as a unit of measurement for the amount of substance in the International System of…

Q: How many protons are there in the nucleus of Cu-64?

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.