Complete the table:   Compound Mass Moles Number of molecules CO2 _____ 0.0105 _____ CO _____ 0.0196 _____ BrI 33.0 mg _____ _____ CF2 Cl2 1.50 kg _____ _____

Q: What advantage is there to using a counting unit (the mole) for amount of substance rather than a…

A: To explain the advantage of using mole unit instead of mass unit.

Q: Perform each of the following calculations.  You must show your work to receive credit and must must…

A: No of atom/molecules = mole × Avogadro number

Q: Which sample of magnesium chloride, MgCl2, contains the same number of moles as 69.6g of potassium…

A: Given the mass of potassium sulfate K2SO4 =69.6 gwe are asked to calculate the mass of  magnesium…

Q: How many N atoms are present in 4.2 mg of theobromine?

A: Structure of theobromine -   Molecular formula of theobromine = C7H8N4O2 Molar mass = Mass of ( C x…

Q: 4. Determine the number of molecules of compounds or atoms for the following. 15.8 mol H2O 9.51 b.…

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

Q: will

A:

Q: What is a MOLE? O Aunit of substance containing a certain amount expressed in grams O Aunit of…

A: The given question asks to select the right option that accurately defines a mole of any substance.

Q: For each of the following drugs, determine the mass of compound present for the given moles of each…

A:

Q: Selenium dichloride, SeCl2, has a molar mass of 149.86 g/mol.  What is the mass in grams of 0.325…

A: Given, moles of SeCl2 = 0.325 moles molar mass of SeCl2 = 149.86 g/mol mass of SeCl2 = ?

Q: Question 11 How many moles of carbon are present in 1.37 x 10 25 atoms of carbon? O 8.25 moles O…

A:

Q: A compound is composed of 57.51 % carbon, 1.63% H, 18.89% N, 13.05 % O, and the remainder other…

A: Given , A compound contains 57.51 % carbon , 1.63 % H , 18.89 % N , 13.05 % O and remainder are…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: The mineral sample has the elemental composition: Element atomic weight (g/mol) Percent…

Q: For each of the following drugs, determine the mass of compound present for the given moles of each…

A:

Q: Which quantity contains the most moles? a. 10 g SO2 b. 10 g CO2 c. 10 g SiO2 d. 10 g CH4

A: Generally, the no of moles presents in given amount is obtained by dividing the given compound mass…

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.