15 How many atoms of Aluminum are in 6.95 moles of Aluminum?

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: Consider Titanium. It is a metal with the same strength as steel, but it is 45% lighter. It is also…

A: The molar mass of titanium is 47.867g/mol Thus, the mass of 1 mol of titanium is 47.867g

Q: How many moles of Ar are in 9.50 x 1023 atoms?

A: Given :-  number of atoms of Ar = 9.50 × 1023 atoms  To calculate :-  number of moles of Ar

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 moles of oxygen atoms are there in 15. 53 moles of N02?

A: Given -> Moles of NO2 = 15.53 mole

Q: On earth, tin has 10 different stable isotopes. The heaviest, 124Sn makes up 5.80% of naturally…

A: Grams of 124Sn present in 38.3 g sample     = 38.3*(5.80/100)= 2.22 g

Q: percent

A: CuO  + H2 ------------------ Cu  + H2o  Mm of CuO = 79g No of mole of Cu is = 4.7/79= 0.21mol From…

Q: how many grams of mercury are in 9 moles of mercury ?

A: By using mole concept , number of moles is given as below: number of moles=mass in gMM in…

Q: mass

A: moles of Compound = ( mass of Compound / molar mass of Compound )  Mass of the Compound = moles of…

Q: How many moles of iron atoms do you have if you have 8.80 × 10²³ atoms of iron. (The mass of one…

A: 1 mole of a substance contains 6.022×1023 molecules.

Q: Since the penny was minted in 1969, only 95.00% by mass of the penny is copper. If the had a mass of…

A: Mass of penny = 3.110g 95% of it is copper The molar mass of copper = 63.546g/mol

Q: How many moles of silver atoms do you have if you have 2.15 × 10²¹ atoms of silver. (The mass of one…

A: Number of moles (n) is given by- n= given mass/molar mass Or n= given no. of particles/Avogadro…

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

A:

Q: A pure silver ring contains 4.55×1022 silver atoms. How many moles of silver atoms does it contain

A: A mole of a substance is equal to as many entities (atoms , molecules and ion ) as there are number…

Q: What is the mass of 4.34  1027 hydrogen molecules?

A: Given: Number of hydrogen molecules =

Q: 8. The United States chemical industry produces more sulfuric acid, in terms of mass, than any other…

A: Molar mass of the compound is equal to the sum of the atomic masses of all the elements. Calculate…

Q: Gold (Au) is one of a group of metals calledthe coinage metals (copper, silver, and gold). How many…

A: Solution :      Avogadro's number is defined as the number of particles present in one mole of the…

Q: How many moles are in 11.9 grams of argon (Ar)?

A:

Q: Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms.…

A: a) The number atoms of 124Sn are present in 25.0 g of naturally occurring tin is to be calculated.…

Q: How many copper atoms do you have in 2.50 moles of copper atoms

A: Moles of copper = 2.50 mol 1 mol of copper contains 6.02×1023 copper atoms Hence 2.50 mol Cu has…

Q: How many atoms are in 3.72 moles of pure aluminum?

A: Given: moles of Al = 3.72 mol

Q: How many moles are there in 8.9×10^23 hydrogen atom?

A: Given: Number of hydrogen atoms present = 8.9 × 1023

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: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?

A: Given : Mass of water = 3.79 Kg  And molar mass of water = 18.02 g/mol

Q: How many atoms are there in 2 moles of Calcium

A: Number of moles of calcium = 2 moles  Number of atoms of calcium = ?

Q: A student started with a sample of an element X of 10.34 grams. The mass of oxygen is 1.59 g. given…

A:

Q: How many moles are present in 6.36×1018 atoms of copper?  mol Cu

A:

Q: How many moles of calcium atoms do you have if you have 4.94 × 10²¹ atoms of calcium. (The mass of…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: O3

A:

Q: Determine the mass, in grams, of 0.710 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: How many moles of silver atoms do you have if you have 2.76 × 10²¹ atoms of silver. (The mass of one…

A:

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 atoms are in 5.8 moles of Neon

A: Welcome to bartleby !

Q: How many atoms of nitrogen are in 3.50 moles of N?

A: Given : Moles of N = 3.50 mol.

Q: What quantity in moles of silver atoms do you have if you have 5.99 × 10²¹ atoms of silver. (The…

A:

Q: How many moles of iron atoms do you have if you have 8.00 × 1023 atoms of iron. ( The mass of one…

A: This problem can be solved by knowing the fact that one mole contains 6.022×1023 atoms.

Q: How many moles of silver atoms do you have if you have 5.09 × 10²¹ atoms of silver. (The mass of one…

A: Given: Number of Atoms of Silver = 5.09 × 10²¹  To Determine: Moles of silver atoms

Q: How many atoms of gold are in 1 gram of gold?

A: Given, 1 gram of gold

Q: 2) How is the mole similar to a dozen?

A: (2) Answer- A mole is a unit of counting particles such as atoms, molecules, ions etc. which…

Q: Determine the mass in grams of 7.06 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A:

Q: How many moles of mercury are in 17.140 grams of mercury?

A: Atomic number of mercury is ----  80 Atomic mass of mercury is ----- 200.59 g Since atomicity of…

Q: How many moles of iron atoms do you have if you have if you have 8.00 × 1023 atoms of iron. ( The…

A:

Q: many atoms of helium are in the balloon?

A: It is given that: Density of helium in a balloon = 1.18 g/L Volume = 2.85 L  Density is defined as…

Q: An ambitious student decides to count potassium atoms. He counts 2.01 * 10 to the 23rd power atoms…

A: Using the concept of avogadro number , and no. Of moles we can solve this problem.

Q: A 21.37 gram sample of an unknow element contains 0.3267 moles what is the identity of the element

A:

Q: How many moles of calcium atoms do you have if you have 5.86 × 10²¹ atoms of calcium. (The mass of…

A:

Q: How many atoms of strontium are in 3.33x10-6 moles

A: According to the mole concept, there is 6.022×1023 number of atoms in 1 mole of an element. In this…

Q: 49.4 g of Cr represents how many atoms?

A: Number of atoms = moles of Atoms X Avogadro's number where Avogadro's number = 6.022 X 1023  And…

Q: How many copper atoms are in a pure copper statue with a mass of 105kg?

A: The value is given as follows:

Q: How many atoms are in 2.00 moles of aluminum

A:

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.