How many atoms of iodine are in 126 g iodine?

Q: A beaker contains 5.75 x 1024 molecules of ethanol. How many moles of ethanol are there in a beaker?

A:

Q: If you were asked to determine the formula mass of aluminum sulfate, how many oxygen atoms would you…

A: Formula mass is the sum of the mass of all the elements in the empirical formula of the compound.

Q: How many moles of atoms are contained in 4.5 x 1022 atoms Cu.

A: The number of atoms of Cu is 4.5×1022. The formula to calculate number of atoms is,

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

A:

Q: What quantity in moles of iron atoms do you have if you have 2.20 x 1023 atoms of iron. (The mass of…

A: Number of atoms of Iron = 2.20 X 1023 atomsMass of one  mole of iron = 55.85 gWe need to calculate…

Q: How many total atoms are in 78.6 g of iron (II) chlorate?

A:

Q: How many moles of C (to two decimal places) are found in 6.87 x 1024 C atoms?

A: Given,The number of carbon (C) atoms = 6.87 x 1024  C atoms.

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: how many chlorine atoms are in those 20.3 grams of carbon tetrachloride?

A:

Q: A sample of pure carbon disulfide has a mass of 45.05 g. How many molecules of carbon disulfide…

A: Number of mols = weight / molecular weight  Number of molecules  = number of mols × 6.023 × 1023

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

A: Given values: Percentage of carbon = 70.53 % Percentage of hydrogen = 13.02 % Percentage of nitrogen…

Q: What is the mass of 1.33 moles of NO?

A: Number of moles = Mass/ Molar Mass Molar mass of NO = 30g/mol Number of moles = 1.33

Q: How many atoms of Cu are present in 35.4 g of Cu?

A:

Q: Convert the following to mass in grams   4.25 x 1024 atoms N

A:

Q: How many atoms are in 76.9 g of lithium hypochlorite (LiClO)?

A: Answer:In the 1 mole sample of a substance number of particles are always equal to Avogadro number…

Q: Calculate the mass of 4.53 × 1021 chromium atoms in grams.

A:

Q: Determine the mass of 3.42 X 1019 atoms of Magnesium

A: Given, atoms of Mg = 3.42 x 1019 atoms

Q: How many atoms are in 45.6 g Li

A: Given, Mass of lithium (Li) = 45.6 g Number of atoms are in 45.6 g Li = ? Note: Atomic mass of of…

Q: How many moles of arsenic are there in 6.50 g of arsenic?

A:

Q: How many molecules are there in 12.5 g of NaOH

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: The atomic mass of Cl is 35.45 amu, and the atomic mass of Al is 26.98 amu. What are the masses in…

A:

Q: How many grams of S are in 515 g of SO2?

A: The atomic mass which is denoted in grams indicates the gram atomic mass. The relationship between…

Q: If you have an 8.53 mg sample of phosphorus oxychloride and it contains 1.72 mg of phosphorus, what…

A: Mass of POCl3 = 8.53 mg Mass of P = 1.72 mg

Q: How many moles are in 33.0 g of Se? How many atoms of N are in 5.6 g of N?

A: Given :-  Mass of Se = 33.0 g  Mass of N = 5.6 g  To calculate :-  i) no. of moles of Se  ii) number…

Q: how many atoms are in 102.1 g of sodium?

A:

Q: How many total atoms are there in 84.9 g of methane ( CH4 )?

A:

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

A: Solution:- Given - 1.01×1024 molecules of CCl4 We have to calculate 'grams of CCl4 present in given…

Q: What is the mass of 1.89x10^23  atoms of chlorine?

A: Mass of 1 mol Cl = 35.453 g  Mass of 1 mol Cl2 = 70.906 g  1 mol contains = 6.022 × 1023…

Q: How many atoms of hydrogen are in 2.44E1 g of methane?

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.01 × 10²⁴ atoms of fluorine. What is the…

A: Formula for carbon tetrafluoride is CF4

Q: How many molecules are in 6.26 grams of sulfur dioxide? ______ molecules What is the mass in grams…

A:

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

A: Given,

Q: What is the mass of 4.36 x 1023 molecules of carbon tetrachloride?

A: No of molecules of CCl4 =4.36 x 1023Molar mass of CCl4  =153.8g

Q: how many moles of gold is 2.56 x 1026 atoms of gold

A:

Q: How many moles of Mn are there in 85.8 grams of Mn?

A: Number of Moles of Mn can be calculated as follows -

Q: How many atoms are in 127 g of calcium?

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

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.