A gold atom has a diameter of 2.88 × 10210 m. Suppose the atoms in 1.00 mol of gold atoms are arranged just touching their neighbors in a single straight line. Determine the length of the line.

Q: Tin, element 50 on the periodic table, has 10 stable isotopes. 117^Sn makes up 7.687% of naturally…

A: Using the formula moles of Sn117 is calculated as,

Q: How many moles of calcium atoms do you have if you have 4.98 x 10^21 atoms of calcium. (The mass of…

A:

Q: 5.00 g of copper is reacted with 5.00 g of sulfur in a crucible and a compound composed of copper…

A: Mass percentage of substance is one of the ways to express composition of compounds. Mass percentage…

Q: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

A:

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

Q: Solid potassium and oxygen gas react to produce solid potassium peroxide, K2O2. Assume the reaction…

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) From the balanced…

Q: Determine the mass in grams of 7.52 x 10²1 atoms of barium. (The mass of one mole of barium is…

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

Q: How many moles of sodium atoms do you have if you have 8.40 × 10²³ atoms of sodium. (The mass of one…

A: Given number of sodium atoms = 8.40 × 10²³ Number of sodium atoms in one mole = 6.022×1023

Q: Determine the mass in grams of 8.01x10^21 atoms of barium. (The mass of one mole of barium is…

A: Number of Barium atoms = 8.01 × 1021 atommass of 1 mole of Barium = 137.33 gNote:1 mol of Barium…

Q: 9.21 x10^19 molecules of hydrogen gas,(H2) are equal to how many grams of hydrogen gas?

A: Number of molecules = 9.21 × 1019 molecules Avogadro’s constant = 6.022 × 1023 molecules Numbre of…

Q: Determine the mass in grams of 4.83 × 10²¹ atoms of barium

A: Given :- number of atoms of Ba = 4.83 × 1021 atoms  Mass of 1 mol Ba = 137.33 g  To calculate :-…

Q: Determine the mass in grams of 5.51 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A:

Q: Rubidium has two naturally occurring isotopes. The average mass of Rb is 85.4678 u. If 72.15% of Rb…

A: Given, Average mass of Rb = 85.4678 u Isotope I, Rb-85 : natural abundance = 72.15 %  relative…

Q: What is the mass in kilograms (kg) of 4.29 X 1024 atoms of palladium?

A:

Q: Calculate the number of grams of lithium in 5.44 x 1021 atoms of lithium.

A: Given,  Number of atoms of Lithium=5.44×10^21 We know, molar mass of Lithium atom=6.941g/mol Also…

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: Determine the mass in grams of 7.21 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

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

Q: Calculate the mass, in grams, of sample.  7.9x10^21 uranium atoms

A: GIVEN: To solve: Mass in grams of uranium atom sample=?

Q: Determine the mass in grams of 2.25 x 10 21 atoms of copper. (The mass of one mole of copper is…

A: Introduction: Copper element belongs to group 11 of the periodic table with atomic number 29 and…

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

Q: If you had 21.5 moles of silicon, how many atoms would you expect to have? And If you had 5.69 x…

A:

Q: One atomic mass unit has a mass of 1.6605402 × 10-24 g. a)Calculate the mass, in grams, of one…

A: The mean atomic mass of magnesium stands at 24.305 atomic mass units (amu). An atomic mass…

Q: Determine the mass in grams of 5.79 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given no. Of atoms of barium = 5.79 x 10²¹  1 mole of barium = 137.33 g

Q: The density of solid Fe is 7.87 g/cm3. How many atoms are present per cubic centimeter (cm3) of Fe?

A:

Q: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

A:

Q: A sample of trifluoroacetic acid

A: Atomic mass of C = 12 amu Atomic mass of H = 1 amu Atomic mass of F = 19 amu Atomic mass of O = 16…

Q: Determine the mass in grams of 5.30 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: 1 mole of a substance equal to  6.022×1023 atoms which is Avogadro’s number. Thus, the gram value of…

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1022 atoms of potassium.…

A:

Q: Calculate the number of grams of lead contain 1.2 x 1024 atoms of lead.

A: Given: lead contain 1.2 x 1024 atoms of lead. To find: Calculate the number of grams of lead contain…

Q: How many moles of sodium atoms do you have if you have 5.60 × 10²³ atoms of sodium. (The mass of one…

A: Given →5.60*1023 atoms of sodium→mass of one mole of sodium=22.99 gone mole sodium atoms mean…

Q: Determine the mass in grams of 5.66 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given,

Q: A gold ring is composed of 2.65 × 1023 atoms. Calculate the mass of the ring in grams. mass:

A: Given data :number of atoms in copper ring = 2.65 x 10^23 Solution :atomic mass of Cu = 63.5…

Q: Calculate the mass, in kg, of sample. 1.22x10^27 manganese atoms

A:

Q: Determine the number of atoms in 23.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Mass of Ca = 23 g  Molar mass of Ca = 40.08 g/mol

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

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.