Determine the number of atoms in 39.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99 g.)

Q: how many helium atoms are there in a helium blimp containing 536 kg of helium?

A: moles and number of atoms are related to each other by Avogadro's numberSo, one mole of every…

Q: A sample of methane, CH4 , has a mass of 77.00g. Calculate the number of methane molecules in the…

A: Mole concept: According to the mole concept, the number of methane molecules in one mole of methane…

Q: 1.2x10^23 gold atoms calculate into mass, in grams

A: Given:Number of gold atoms = 1.2 x 1023 atoms.Molar mass of gold (Au) = 199.97 g/mol.

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: Calculate the number of atoms in each of the following quantities:  a. 10.8 g boron  b. 20.0 g…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Distinguish between molecular substances and ionic substances in terms of their composition?

A: Ionic compounds have strong ionic bonds while molecular substances have covalent bonds. Molecular…

Q: Describe the process of determining the number of Subatomic particles in Atoms?

A: An atom is the smallest invisible and indivisible particle of matter. However, an atom still…

Q: Determine the number of atoms in 11.0 grams of nickel, Ni.

A: Given- Weight = 11.0 gm

Q: 18. How many moles of gold atoms do 3.45 X 1044 gold atoms constitute?

A: We know that the number of atoms is given by below expression  number of atoms = moles X avogadro…

Q: The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu. Why is this true?

A: Given : The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu.

Q: The atomic masses of 6 Li and7Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural…

A: The natural abundance of the heaviest isotope is to be calculated.

Q: Sulfur forms several compounds with fluorine. Upon decomposition, sample one produces 4.45 g of…

A: Given information is:                   Sample 1 →Decomposition F(4.45grams) + S (1.25grams)…

Q: The mass of a single platinum atom is 3.24×10-22 grams. How many platinum atoms would there be in…

A: The mass of an atom is the amount of matter present in the substance. The mass of an atom remains…

Q: What amount, in moles, does this mass represent?

A: Number of moles = mass/molar mass  Molar mass of methanol is 32.04 g/mol

Q: Chlorine has two naturally occurring isotopes, 35Cl and 37Cl. What is the mass number of each…

A: To find: The mass number of each isotope. Number of protons, neutrons and electrons are present in…

Q: You are given 1.0g samples of Iron, Silicon, and Lithium. Which of the three samples will contain…

A: Given: 1 g sample of Iron, silicon and lithium To find: Sample containing largest number of atoms…

Q: What is the mass of 3.91x1024 oxygen atoms? Select an answer and submit. For keyboard navigation,…

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

Q: How many copper atoms are in a cube of copper metal measuring 1.33 cm on each edge? The density of…

A: Volume of copper cube = 1.33 cm x 1.33 cm x 1.33 cm                                            =…

Q: Consider chlorine, which occurs as a mixture of two isotopes: chlorine-35, with a natural abundance…

A:

Q: The Japanese symbol for an atom has been written on a piece of copper metal using 99 iron atoms.…

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

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

A:

Q: Determine the number of atoms in 47.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Number of mole(n)= weight(g)/(molar mass in g/mol) weight of Vanadium=47.0 g Atomic mass of…

Q: b) Calculate the mass of oxygen in a 89.2 g sample of calcium phosphate.

A: Since you have asked for part b only, we are providing you a solution for part b of the question.…

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a aluminum atom…

A:

Q: The total number of atoms in NaCI

A: The number of atom of an element in its molecules is known as atomicity. SodiumChloride or NaCl is…

Q: Determine the number of atoms in 69.0 grams of nickel, Ni. (The mass of one mole of nickel is 58.69…

A: One mole of any substance contains the avogadro's constant 6.022×1023 of molecules.

Q: a 500. mg tablet of vitamin C, C6H8O6 NOTE THE UNITS OF mg. (a)how many ATOMS are in the vitamin C…

A: GIven ,Molecular mass of vitamin C C6H6O8=176.12g/mol.Given mass of 500mg=0.5ga).Atoms  in the…

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: A 67.2 g sample of a gold and palladium alloy contains 3.33*10^23 atoms.  a) What is the mass % of…

A: Given data,Mass of alloy=67.2gTotal number of atoms=3.33×1023atoms

Q: If you have a sample of 24.31 g magnesium (Mg), which is equal to one mole, how many atoms of…

A: Given that Amount of magnesium (Mg) = 24.31 gram  Which is equal to 1 mole To answer this problem ,…

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: Use the conversion factor 1 amu = 1.66054 x 10-24 g to answer the questions. How many atomic mass…

A: Given: 1 amu = 1.66054×10-24 g

Q: The average atomic mass of carbon is 12.011 amu. Assuming you were able to pick up only one carbon…

A: Given that, the average mass of carbon is 12.011 a.m.u. The given mass of any of the carbon isotopes…

Q: Determine the number of atoms in 35.0 grams of nickel, Ni. (The mass of one mole of nickel is 58.69…

A: Given, Mass of Ni = 35.0g

Q: An atom of copper has a mass about four times greater than that of an atom of oxygen. What choice…

A: Mass of copper atom = 4 x mass of oxygen atom

Q: A sample of Ni weighs 73.6 grams. Will a sample of Ag that contains the same number of atoms weigh…

A:

Q: Determine the mass of 3.01 × 10^20 atoms of Sulfur.

A:

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a nickel atom…

A:

Q: Calculate the approximate number of atoms in a bacterium, assuming the average mass of an atom is…

A: Given,  Average mass of an atom is 10 times the mass of hydrogen atom Calculate the approximate…

Q: Determine the mass in grams of 6.24 x 1021 atoms of barium. (The mass of one mole of barium is…

A:

Q: The mass of a single aluminum atom is 4.48×1023 grams. How many aluminum atoms would there be in 185…

A: Given that, The mass of a single aluminum atom is 4.48×10-23grams = (4.48×10-23×103)milligrams =…

Q: Chlorine has two naturally occurring isotopes, ³⁵Cl and ³⁷Cl.What is the mass number of each…

A: Number of proton present in a neutral element = Number of electron present in that neutral element =…

Q: What is the mass of 6.77x10^24 nitrogen atoms?

A:

Q: A piece of copper contains 6.7×108 atoms. What is the mass of the sample, in units of kilograms

A: molar mass of Cu = 63.55 g/molThis is mass of 6.022×1023 atomsuse:mass of 1 atom = molar…

Q: Two gaseous A and B are common hydrocarbons. Chemical analyses demonstrate that in one sample of A,…

A:

Q: A 1.98 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 2.71 x 1022…

A:

Q: A sample of aluminum foil contains 5.70 x 1023 atoms. What is the mass of the foil?

A:

Q: Calculate the mass, in grams, of sample. 1.1x10^23 gold atoms

A: Given: Gold sample with 1.1x1023 number of atoms.

Q: An element X has two common isotopes: X-57 and X-59. If the average atomic mass of element X is…

A: An element has two isotopes : X-57 and X-59 Average Atomic mass = 58.876 amu