Quiz on Formula Mass and Mole Concept

What is the molecular mass (amu) for of chloroform (CHCl3)

What is the molecular mass (amu) for aspirin molecule, C9H8O4

What is the molecular mass (amu) for Ibuprofen, C13H18O2.

What is the formula mass (amu) of Aluminum sulfate, Al2(SO4)3?

calculate moles of atoms and number of atoms in 4.7 g of sample potassium?

A liter of air contains 9.2 × 10−4 mol argon. What is the mass of Ar in a liter of air?

Copper is commonly used to fabricate electrical wire. How many copper atoms are in 5.00 g of copper wire?

How many atoms are present in 22 g of CO2?

How many chloride ions are in 1 mole of CaCl2?

What are the number of mole and the mass of copper containing 5 x 1020 atoms?