49.4g of Cr represents how many atoms?

Q: Calculate the mass in grams of 0.504 for mol of titanium

A: We know that, moles of a substance can be expressed 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: Calculate the number of C atoms in 0.206 mole of C?

A:

Q: What is known as mole of hydrogen ?

A: Mole: It is the way of expressing the amount of substance present in 12 grams of the carbon-12…

Q: What is the mass, in grams, of 1 mole of oxygen atoms?

A: Given :- number of moles of O = 1 mol  To calculate :- mass of 1 mol O atoms 1 mol contains 6.022 ×…

Q: How many helium atoms are in a helium blimp containing495 kg of helium?

A: The moles of a substance for a given mass is given by, number of moles=given massmolar mass The…

Q: How many moles of Phosphorus are present in 114.95 g of Phosphorus?

A: Given, mass of Phosphorus = 114.95 g Molar mass of P = 30.97 g/mol

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: Mass (%) of an element in compound = 100 x Mass of element/Mass of compound Number of moles =…

Q: A 70 gram sample of Mg is equal to how many moles of the metal? What is the mass of substance in a…

A:

Q: Determine the percentage by mass of an element in "salt"

A: Chemical Formula of Table Salt = NaCl Molar Mass of NaCl = 58.44 g/mol Mass of Element Na = 22.99…

Q: How many atoms are in 4.00 moles of sulfur (S)?

A: According to the mole concept , 1 mole of any atom/ molecule constitute 6.022 × 1023 atom or…

Q: How many moles are equal to 2.4x1024 atoms of Cu?

A: Given data: Number of atoms of Cu = 2.4×1024 atoms Avogadro's number = 6.022×1023 atoms

Q: In an experiment, a specific amount of KClO3 is allowed to decompose to produce 4.40 g of KCl. How…

A: Given Mass of KCl produced = 4.40 g To find Mass of O2 produced in the experiment.

Q: How many atoms are in 1.00g of gold?

A: Number of atoms in 1.00g of gold is to be determined.

Q: Determine the number of moles of the compound and determine the number of moles of each type of atom…

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: Why is the mass of a mole of carbon atoms 12 times that of a mole of hydrogen atoms?

A: The solution is as follows:

Q: given a 81.9 mol sample of Ne, how many atoms are present?

A: 6.023 × 10^ 23 is called Avogadro's number. One mole of any substance contain Avogadro's number of…

Q: How many atoms in 0.0453 moles of iron?

A: We know that the 1 mole of any atom conations = 6.023x1023 atoms  i.e. is equal to Avogadro no. Also…

Q: What is the mass of 1 mol of S atoms to three significant figures?

A: Mass of 1 mol of any atom is equal to its atomic weight.

Q: How many atoms are in 46 g of bromine?

A: Given : Mass of bromine = 46 g Molar mass of bromine i.e Br2 = Atomic mass of Br X 2 = 79.9 X 2 =…

Q: If 2.06 mL of seawater contains about 6.91×10-14 moles of gold, how many atoms of gold are in that…

A:

Q: How many moles of silicon are in th

A:

Q: How many atoms are in 2.15 moles of gold?

A:

Q: How many atoms of sulfur are there in 0.0120mol of S, molecules?

A: 1 mol = 6.22 × 1023 atoms  1 mol S8 = 8 mol S atoms

Q: determine the number of atoms of 47.56g of Pa

A:

Q: 5. In 43 grams of acetate, how many atoms of oxygen are present?

A: Mass of Acetate = 43 gram

Q: Calculate the number of g of O,

A: Given :- moles of C3H8 = 3.77 mol  To calculate :- mass of O2 (in g)

Q: Convert between moles and numbers of atoms. A sample of lithium contains 2.24x1025 Li atoms. What…

A:

Q: in a 63.17 gram sample of sulfur trioxide, how much of it is sulfur?

A: SO3 is an acidic oxide.

Q: How many atoms are in 55 grams of Aluminum (Al)?

A: Given , Mass of Al= 55 g Molar mass of Al= 26.982 g/mol Avogadro's number= 6.022×10^23

Q: A toy top has a mass of 32.0g Cu. How many atoms Cu are in the spinning top, given that the average…

A: Given information: Mass of Cu = 32.0 g Molar mass of Cu = 63.55 g/mol

Q: How many atoms would be in 0.75 moles of aluminum?

A: The question is based on  mole concept. it involves calculation of number of atoms based on number…

Q: Calculate the number of atoms of Fe in a sample with mass = 1899 amu.

A: A sample of Fe of mass  1899 amu.The number of atoms of Fe in a sample is to be calculated.

Q: A 3.20 mol sample of aluminum represents how many atoms?

A: Number of atoms = moles of Atom X Avogadro's number  where Avogadro's number = 6.022 X 1023

Q: Which of the following has the largest moles of oxygen per mole of the molecule?

A: 1 mole of any substance = avogadro number of particles                                          =…

Q: What is the mass in grams of a single atom of Mo? Enter your answer in scientific notation.

A: 1 mol of any substance contains Avogadro number of particles of that substance. Molybdenum is an…

Q: 17) What is the mass of CO that contains one trillion carbon atoms?

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: THE moles of Fe in a sample containing 5.72x10^21 atoms of Fe

A: Given 5.72x1021 atoms of Fe

Q: a 165lb man was found to contain 3.27mg of cobalt (Co). how many atoms of cobalt is this?

A:

Q: Which sample contains the greatest number of atoms. A sample of Li that contains 3.12×1024 atoms or…

A: Avogadro's  number is a proportionality factor and gives the number of atoms, molecules or ions in…

Q: d. 5.90 mol of Ca to atoms of Ca

A: From mole number or avagadro number we can calculate number of atoms of "Ca".

Q: determine the number of atoms of 23.64g of Ce

A: Given, mass of Ce = 23.64 g Molar mass of Ce = 140 g.mol-1

Q: Calculate the mass of two atoms of Cr, Mo and W?

A: Mass of one atom of Cr is 52 u. Therefore, mass of two atoms of Cr is 104 u that is 252 u=104 u

Q: What is the mass of  2.55 moles of water?

A: Given, Moles of water = 2.55 moles Molar mass of water = 18 g/mol

Q: Calculate the mass in grams of 15 atoms C

A: Mole is defined as    Interms of particles :  1 mole = 6.022 x 1023 atoms  Interms of mass :  1…

Q: How many atoms are in 5.80 moles of He?

A: Given : Moles of He = 5.80 mol.

Q: What is the mass of 2.561 mol of gold?

A: A pinch of salt contains as many particle of NaCl that cannot be counted as such. The unit Mole (…

Q: Calculate the mass of 500 atoms of iron (Fe).

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Calculate the mass of 400. atoms of sulfur (S)

A: Given: Number of atoms of S = 400 atoms.

Q: How many moles of iron are there in 230kg of iron?

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.