What is the mass of 4.91x10^21 platinum atoms?

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 miles of gold atoms do 3.45 x 10^24 gold atoms constitute

A: This problem can be solved by knowing that one mole comprises of 6.022×1023 atoms.…

Q: Distinguish among the types, locations, and charges of subatomic particles.

A: Protons, neutrons are electrons  that are the three fundamental subatomic particles present in the…

Q: 103 A neutral atom of rhodium-103 (0Rh) contains how many protons, neutrons, and electrons?

A: Given,  A neutral atom = Rhodium  (a). How many protons = ? (b). How many electrons = ? (c). How…

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: Calculate the mass, in grams, of each sample. a. 1.1 x 10 gold atoms b. 2.82 x 102 helium atoms c.…

A: Calculate the mass in grams of each sample  (a) 1.1 x 1023 gold atoms (b) 2.82 x 1023  helium atoms…

Q: what is the mass, in grams, of 3.01 x10^23 copper atoms

A: Number of copper atoms = 3.01 × 1023  We need to determine mass of copper.

Q: A mass of 41.6 g of an element is known to contain 6.59 x 1023 atoms. What is the atomic mass of the…

A:

Q: the number of copper atoms in 3.0 g lump of copper is 2.8 x 1022. how many electrons are present in…

A: Given: Number of copper atoms in 3.0 g lump of copper is 2.8 x 1022.

Q: Consider the following equation: The mass number of element X is: 226A + 15B → 80C + {x}X + 4 1n

A: The nuclear reaction is  226A + 15B → 80C + {x}X + 4 1n  Now , Total mass number in left hand side…

Q: A given sample of ammonia, NH3, contains 3.75x1024 hydrogen atoms. What is the mass, in grams, of…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Calculate the mass of 5.70 X 10^22 tungsten atoms.

A: Given No of atoms of tungsten = 5.70 x 1022   Also, Molar mass of tungsten =  183.84 g

Q: How many grams does 1.44 x 1028 carbon atoms weigh?

A: To calculate the mass in grams for the atoms  First we have to convert the number of Atoms into…

Q: 10. Which of the following choices consists of a pair of isotopes? (A) 14C and 14N (B) 2³Na and…

A: Isotopes are variants of chemical elements which differ only in the number of neutron and…

Q: How many protons, neutrons and electrons are present in an atom of 40Ca and 119Sn ?

A: The atoms considered are 40Ca and 119Sn.

Q: What is the mass in grams of each elemental sample? (a) 6.64 mol W (c) 68.1 mol Xe (b) 0.581 mol Ba…

A: The molecular masses of the given elements are: a. Tungsten (W) - 183.84 g/mol b. Barium (Ba) -…

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: An ion that consists of 16 protons, 32 neutrons, and 18 electrons has:

A: The atom consist of 3 particles-  1- electron 2- proton 3- neutron

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

A: Atomic mass of Nd = 144.2 g/ mol

Q: Calculate the mass of 5.70×10225.70×1022 tungsten atoms.

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Q: Calculate the average mass, in grams, of one platinum atom.

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Q: What is the mass of 6.02 x 1023 Cu atoms?

A:

Q: 1. Determine the number of electrons necessary to equal a mass of 1.15 x 10 grams.

A:

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

A:

Q: How many atoms are contained in a block of aluminum metal measuring 4.0 mm x 9.0 mm x 11 mm? The…

A:

Q: Consider the following equation: The mass number of element X is: 219A+12B 93C+ belx +2'n

A:

Q: A platinum atom has a radius of 177 pm. If you could string platinum atoms like beads on a thread,…

A: Given that, Radius of Pt-atom = 177 pm =177×10-12 m= 177×10-10 cm =1.77×10-8 cm Length of necklace =…

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: The mass of an atom of hydrogen is 1.673 x 10-24 g. How many atoms are in a 10.8 g sample of…

A: Since mass of 1 H atom = 1.673 x 10-24 g Hence assuming in 10.8 g sample of hydrogen we have n…

Q: If 4.20 x 1020 atoms of an element have a mass of 55.2 mg, what is the atomic weight of the element?

A: • 1 mole = 6.023 x 1023 molecules/atoms.• 1 mole = molar mass.• No. of mole = No. of atoms6.023 x…

Q: Calculate the mass, in kg, of sample.  7.55x10^26 cadmium atoms

A:

Q: Calculate the number of protons neutrons and electrons in 84Kr36

A: The below points should be kept in mind always to solve this type of problem. The mass number is the…

Q: How many protons are in 2.08 x 10-21 g of F?

A: Atomic weight of F = 19 Given is Mass of F= 2.08 x 10-21 g Number of moles= given mass/ molar mass…

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 is the edge length (in cm) of a titanium cube that contains 2.55 * 10(24) titanium atoms? The…

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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: If the density of indium is 7.31 g/cm², how many atoms are there in a indium piece of 30 dm wide, 5…

A:

Q: Calculate the mass, in grams, of a single platinum atom (mpt=195.08amu)

A: Atomic mass of platinum is 195.08 g/mol.

Q: The density of liquid mercury is 13.69 g/cm. How many atoms of mercury are in a 1.614E1 mL sample?

A: density = massvolume mass = density × volume mass of liquid mercury = 13.69 g/cm3 ×1.614 ×101 mL =…

Q: How many moles of aluminum do 1.42 x 10^24 aluminum atoms constitute?

A: 1 mol of any atom has 6.023 ×1023 number of atoms .

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: Calculate the mass of 1.23×10241.23×1024 helium atoms.

A: 1 mole of a substance contains Avogadro number of atoms.

Q: 4/2He+2has how many protons, neutrons, and electrons?

A: Consider the relation between atomic number, number of protons and number electrons in the neutral…

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: 6. What is the mass of 6.20 x 1025 atoms of sulfur?

A: We have 6.2*1025 atoms of sulphur , we have to calculate the mass of given atoms of sulphur.

Q: How many helium (He) atoms are there in (3.74x10^2) g of helium?

A: A number of an atom of an element in the compound = number of moles of the element in compound x…

Q: What is the mass of 4.50 x 1044 Cu atoms?

A: Given :- number of Cu atoms = 4.50 × 1022 atoms  To calculate :- mass of Cu (in g)

Q: A mass of 18.6 g of an element is known to contain 4.84 x 1023 atoms. What is the atomic mass of the…

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Q: What is the mass of 4.91×1021 platinum atoms?

A: Given:Number of platinum atoms = 4.91×1021.Molar mass of platinum = 195.084 g/mol.

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.